cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Между наукой и религией?: вопросы веры в автобиографиях историков XIX – начала ХХ вв
Creators: name: Ivashchenko, Viktoriia
Publisher: name: AvtobiografiЯ
Year: 2020

description: This paper makes an attempt to explore the religious self-identification of historians, based on their autobiographical texts. In particular, it dwells upon autobiographies of scientists of different generations who taught at the universities of the Russian Empire in the 19th – early 20th centuries. The paper provides the analysis of various strategies for building the religious identity of the authors of autobiographies: complete disregard for questions of faith; description of external ritual; fixing the current state of the clergy of various confessions and religions; the desire to give a representation of their religious beliefs – deep religious feelings, religious doubts, atheistic views, which often led to reflections on the influence of these beliefs on scientific activity. It allows us to estimate the features of the worldview of the educated part of Russian society in this period generally and identity the factors that determined the respective strategies: family, professional community (places of service, positions, status etc.) and era.
The KBSS-KCWI Survey: The connection between extended Ly$α$ halos and galaxy azimuthal angle at $z\sim 2-3$
Creators: name: Chen, Yuguang
name: Steidel, Charles C.
name: Erb, Dawn K.
name: Law, David R.
name: Trainor, Ryan F.
name: Reddy, Naveen A.
name: Shapley, Alice E.
name: Pahl, Anthony J.
name: Strom, Allison L.
name: Lamb, Noah R.
name: Li, Zhihui
name: Rudie, Gwen C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first statistical analysis of kinematically-resolved, spatially-extended Ly$α$ emission around $z = 2-3$ galaxies in the Keck Baryonic Structure Survey (KBSS) using the Keck Cosmic Web Imager (KCWI). Our sample of 59 star-forming galaxies ($z_\mathrm{med} = 2.29$) comprises the subset with typical KCWI integration times of ~5 hours and with existing imaging data from the Hubble Space Telescope and/or adaptive optics-assisted integral field spectroscopy. The high resolution images were used to evaluate the azimuthal dependence of the diffuse Ly$α$ emission with respect to the stellar continuum within projected galactocentric distances of $\lesssim 30$ proper kpc. We introduce cylindrically-projected 2D spectra (CP2D) that map the averaged Ly$α$ spectral profile over a specified range of azimuthal angle, as a function of impact parameter around galaxies. The averaged CP2D spectrum of all galaxies shows clear signatures of Ly$α$ resonant scattering by outflowing gas. We stacked the CP2D spectra of individual galaxies over ranges of azimuthal angle with respect to their major axes. The extended Ly$α$ emission along the galaxy principal axes are statistically indistinguishable, with residual asymmetry of $\le$ 2% ($\sim 2 σ$) of the integrated Ly$α$ emission. The symmetry implies that the Ly$α$ scattering medium is dominated by outflows in all directions within 30 kpc. Meanwhile, we find that the blueshifted component of Ly$α$ emission is marginally stronger along galaxy minor axes for galaxies with relatively weak Ly$α$ emission. We speculate that this weak directional dependence of Ly$α$ emission becomes discernible only when the Ly$α$ escape fraction is low. These discoveries highlight the need for similar analyses in simulations with Ly$α$ radiative transfer modeling.
description: 25 pages, 24 figures, 2 tables, accepted by MNRAS
Discontinuous Phase Transition in an Exactly Solvable One-Dimensional Creation-Annihilation System
Creators: name: Jafarpour, F H
name: Ghavami, B
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An exactly solvable reaction-diffusion model consisting of first-class particles in the presence of a single second-class particle is introduced on a one-dimensional lattice with periodic boundary condition. The number of first-class particles can be changed due to creation and annihilation reactions. It is shown that the system undergoes a discontinuous phase transition in contrast to the case where the density of the second-class particles is finite and the phase transition is continuous.
description: Revised, 8 pages, 1 EPS figure. Accepted for publication in Journal of Statistical Mechanics: theory and experiment
Terahertz transitions in finite carbon chains
Creators: name: Hartmann, R. R.
name: Kutrovskaya, S.
name: Kucherik, A.
name: Kavokin, A. V.
name: Portnoi, M. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We predict an optical effect associated with systems which exhibit topologically protected states separated by a finite distance. We develop a tight-binding model to calculate the optical selection rules in linear chains of atoms of different lengths, and show the crucial importance of edge states. For long enough molecules the interband transitions involving these edge states are in the highly sought-after THz frequency range. Although we have specifically considered finite carbon chains terminated by gold nanoparticles, the main results of our work can be generalized to various systems which exhibit topologically protected states separated by a finite distance.
description: 9 Pages, 4 Figures
Wide-band spectroscopy of the Compton thick Seyfert 2 galaxy Mrk 3 with Suzaku
Creators: name: Awaki, Hisamitsu
name: Anabuki, Naohisa
name: Fukazawa, Yasuchi
name: Gallo, Luigi
name: Ikeda, Shinya
name: Isobe, Naoki
name: Itoh, Takeshi
name: Kunieda, Hideyo
name: Makishima, Kazuo
name: Markowitz, Alex G.
name: Miniutti, Giovanni
name: Mizuno, Tsunefumi
name: Okajima, Takashi
name: Ptak, Andrew
name: Reeves, James N.
name: Takahashi, Tadayuki
name: Terashima, Yuichi
name: Yaqoob, Tahir
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained a wide-band spectrum of the Compton-thick Seyfert 2 galaxy Mrk 3 with Suzaku. The observed spectrum was clearly resolved into weak, soft power-law emission, a heavily absorbed power-law component, cold reflection, and many emission lines. The heavily absorbed component, absorbed by gas with a column density of 1.1x10^24 cm^-2, has an intrinsic 2--10 keV luminosity of ~1.6x10^43 erg s^-1, and is considered to be direct emission from the Mrk 3 nucleus. The reflection component was interpreted as reflection of the direct light off cold, thick material; the reflection fraction $R$ was 1.36+/-0.20. The cold material is inferred to be located > 1 pc from the central black hole of Mrk 3 due to the low ionization parameter of iron (xi < 1 erg cm s^-1) and the narrow iron line width (s < 22 eV). A Compton shoulder to the iron line was detected, but the intensity of the shoulder component was less than that expected from spherically distributed Compton-thick material. The weak, soft power-law emission is considered to be scattered light by ionized gas. The existence of many highly-ionized lines from O, Ne, Mg, Si, S, and Fe in the observed spectrum indicates that the ionized gas has a broad ionized structure, with xi=10--1000. The scattering fraction with respect to the direct light was estimated to be 0.9+/-0.2%, which indicates that the column density of the scattering region is about 3.6x10^22 cm^-2. This high-quality spectrum obtained by Suzaku can be considered a template for studies of Seyfert 2 galaxies.
description: 24 pages, 8 figures, accepted in PASJ for publication
Ultrafast Measurements of the Interfacial Spin Seebeck Effect in Au and Rare-Earth Iron Garnet Bilayers
Creators: name: Ortiz, Victor H.
name: Gomez, Michael J.
name: Liu, Yawen
name: Aldosary, Mohammed
name: Shi, Jing
name: Wilson, Richard B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate picosecond spin-currents across Au/iron-garnet interfaces in response to ultrafast laser heating of the electrons in the Au film. In the picoseconds after optical heating, interfacial spin currents occur due to an interfacial temperature difference between electrons in the metal and magnons in the insulator. We report measurements of this interfacial longitudinal spin Seebeck effect between Au and rare-earth iron-garnet insulators, i.e. RE$_3$ Fe$_5$O$_{12}$, where RE is Y, Eu, Tb, Tm. We use time domain thermoreflectance (TDTR) measurements to characterize the thermal response of the bilayer to ultrafast optical heating. We use time-resolved magneto-optic Kerr effect (TR-MOKE) measurements of the Au layer to measure the time-evolution of spin accumulation in the Au film. We observe a spin Seebeck effect between Au/TmIG that is three times larger than for an Au/YIG bilayer. The interfacial thermal conductance between electrons in the Au and magnons in the TmIG layer is ~ 3 $\frac{MW}{m^2 K}$.
title: Гончаров в роли Островского: Эстетическая теория и литературная автобиография в Материалах, заготовляемых для критической статьи об Островском
Creators: name: Zubkov, Kirill
Publisher: name: AvtobiografiЯ
Year: 2020

description: This paper analyzes an unfinished article by Ivan Goncharov known under the title “Materials Prepared for a Critical Article about Ostrovsky.” I argue that the content of the article has practically nothing to do with the works of Alexander Ostrovsky. In fact, Goncharov sought to construct a narrative about his own life and work and to protect them from harsh criticism that appeared after the publication of his last novel “The Precipice”. The paradoxical structure of Goncharov’s article is explained by his aesthetic views, which demanded a perfect “objectivity” from the writer and were hardly compatible with the growing role of memoirs in the Russian literature of the 1870s.
Quantum Representation of Affine Weyl Groups and Associated Quantum Curves
Creators: name: Moriyama, Sanefumi
name: Yamada, Yasuhiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study a quantum (non-commutative) representation of the affine Weyl group mainly of type $E_8^{(1)}$, where the representation is given by birational actions on two variables $x$, $y$ with $q$-commutation relations. Using the tau variables, we also construct quantum "fundamental" polynomials $F(x,y)$ which completely control the Weyl group actions. The geometric properties of the polynomials $F(x,y)$ for the commutative case is lifted distinctively in the quantum case to certain singularity structures as the $q$-difference operators. This property is further utilized as the characterization of the quantum polynomials $F(x,y)$. As an application, the quantum curve associated with topological strings proposed recently by the first named author is rederived by the Weyl group symmetry. The cases of type $D_5^{(1)}$, $E_6^{(1)}$, $E_7^{(1)}$ are also discussed.
Axial Resonances in the Open and Hidden Charm Sectors
Creators: name: Gamermann, D.
name: Oset, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A SU(4) flavor symmetrical Lagrangian is constructed for the interaction of the pseudo-scalar mesons with the vector mesons. SU(4) symmetry is broken to SU(3) by suppression of terms in the Lagrangian where the interaction should be driven by charmed mesons. Chiral symmetry can be restored by setting this new SU(4) symmetry breaking parameters to zero. Unitarization in coupled channels leads to the dynamical generation of resonances. Many known axial resonances can be identified including the new controversial X(3872) and the structure found recently by Belle around 3875 MeV in the hidden charm sector. Also new resonances are predicted, some of them with exotic quantum numbers.
description: Final published version
Αφηγήσεις ζωής Ελληνίδων επιστημόνων: η εξέλιξή τους στους τομείς της Φυσικής, των Μαθηματικών, της Μηχανικής και της Τεχνολογίας
Creators: name: Παντούλη, Όλγα Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Γυναίκες επιστήμονες
Αφηγήσεις ζωής
Αφηγηματική ανάλυση
Women scientists
Life narratives
Narrative analysis

description: Σκοπός της διατριβής ήταν να εξετάσω με ερευνητικό εργαλείο τις αφηγήσεις ζωής και με μέθοδο ανάλυσης την αφηγηματική ανάλυση (narrative analysis), τις εμπειρίες ζωής γυναικών επιστημόνων στην Ελλάδα –ερευνήτριες και καθηγήτριες πανεπιστημίου που διακρίθηκαν στον τομέα τους– και τους παράγοντες που επέδρασαν ώστε να ασχοληθούν με τις φυσικές επιστήμες, την επιστήμη της μηχανικής, την τεχνολογία και τα μαθηματικά και να εντοπίσω ποιοι ήταν οι σημαντικοί παράγοντες που επέδρασαν ώστε οι αυτές γυναίκες να αναπτύξουν επιστημονική δραστηριότητα στους παραπάνω τομείς. Μέσα από τις αφηγηματικές συνεντεύξεις επιζητούσα να διαπιστώσω πώς συγκροτούν την υποκειμενικότητά τους διαγράφοντας την πορεία της ζωής τους και μιλώντας για τις σχέσεις τους με άλλους, για τους αγώνες τους προκειμένου να συνδυάσουν τις οικογενειακές υποχρεώσεις με το επαγγέλμά τους. Μέσα στις αφηγήσεις τους διαφαίνονται οι εσωτερικές εντάσεις, οι αμφιθυμίες κατά την πορεία των αφηγήσεων, οι αντιαφηγήσεις σε σχέση με τους κυρίαρχους λόγους για ζητήματα που τέθηκαν στη συζήτηση, κάποια σταθερά μοτίβα μεταξύ των γυναικών.
description: The aim of the present thesis to explore with life narratives as a tool and with narrative analysis as a method the life experiences’ of women scientists in Greece -researchers and university professors who have excelled in their field- and the factors that contributed to deal with the Sciences, Technology, Engineering and Mathematics and to identify which were the major factors that influenced these women to remain and be distinguished in the above male dominated fields. Through the life narratives I tried to realise how they constitute the subjectivity in relations with others via their life span, for their fights to reconciliate the professional and private life. From their narrations emerge the internal intensities, their ambivalences, the counter-narratives concerning the sovereign reasons for issues that were placed in the discussion, certain regularly patterns between women, the process of ‘naturalising’ their roles because of their gender.
Exact Mapping of the 2+1 Dirac Oscillator onto the Jaynes-Cummings Model: Ion-Trap Experimental Proposal
Creators: name: Bermudez, A.
name: Martin-Delgado, M. A.
name: Solano, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the dynamics of the 2+1 Dirac oscillator exactly and find spin oscillations due to a {\it Zitterbewegung} of purely relativistic origin. We find an exact mapping of this quantum-relativistic system onto a Jaynes-Cummings model, describing the interaction of a two-level atom with a quantized single-mode field. This equivalence allows us to map a series of quantum optical phenomena onto the relativistic oscillator, and viceversa. We make a realistic experimental proposal, at reach with current technology, for studying the equivalence of both models using a single trapped ion.
description: Revtex4, submitted for publication
Electron-Phonon Mediated Superconductivity in 1T MoS2 and Effect of Pressure on the Same
Creators: name: Kumar, Jagdish
name: Singh, Harkirat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Density functional theory (DFT) based ab-initio calculations of electronic, phononic, and superconducting properties of 1T MoS2 are reported. The phonon dispersions are computed within density-functional-perturbation-theory (DFPT). We have also computed Eliashberg function alpha2Fomega and electron-phonon coupling constant lambda from the same. The superconducting transition temperature (Tc) computed within the McMillan-Allen-Dynes formula is found in good agreement with the recent experimental report. We have also evaluated the effect of pressure on the superconducting behavior of this system. Our results show that 1T MoS2 exhibits electron-phonon mediated superconductivity and the superconducting transition temperature rises slightly with pressure and then decreases with further increase in pressure.
description: 16 Pages
An extension of the Maskit slice for 4-dimensional Kleinian groups
Creators: name: Araki, Yoshiaki
name: Ito, Kentaro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 30F40 (Primary), 53A30 (Secondary)

description: Let $Γ$ be a 3-dimensional Kleinian punctured torus group with ccidental parabolic transformations. The deformation space of $Γ$ in the group of Möbius transformations on the 2-sphere is well-known as the Maskit slice of punctured torus groups. In this paper, we study deformations $Γ'$ of $Γ$ in the group of Möbius transformations on the 3-sphere such that $Γ'$ does not contain screw parabolic transformations. We will show that the space of the deformations is realized as a domain of 3-space $\mathbb{R}^3$, which contains the Maskit slice of punctured torus groups as a slice through a plane. Furthermore, we will show that the space also contains the Maskit slice of fourth-punctured sphere groups as a slice through another plane. Some of another slices of the space will be also studied.
description: 34 pages, 11 figures. v3: The title is changed and some typo are fixed. To appear in Conform. Geom. dyn. The paper including more clear figures can be downloaded from http://www.math.nagoya-u.ac.jp/~itoken/index.html
Search for lepton-flavor violating decays of the Higgs boson in the $μτ$ and e$τ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search is presented for lepton-flavor violating decays of the Higgs boson to $μτ$ and e$τ$. The data set corresponds to an integrated luminosity of 137 fb$^{-1}$ collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, $\mathcal{B}($H $\toμτ)$ $\lt$ 0.15 (0.15)% and $\mathcal{B}($H$\to$e$τ)$ $\lt$ 0.22 (0.16)% at 95% confidence level.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-20-009 (CMS Public Pages)
title: Восприятие революционных событий в Киеве в мемуарах Алексея Александровича Гольденвейзера
Creators: name: Bortnowski, Antoni
Publisher: name: AvtobiografiЯ
Year: 2020

description: Alexey Goldenweiser (1890–1979), a successful lawyer, an active participant of the Russian emigration, left a rich legacy containing, in particular, memories of the revolutionary upheavals in his hometown Kiev. His memoirs are interesting not only as a view from participant in historical upheavals, but also as material showing the author’s complex identity. Being a Russian Jew and at the same time a native inhabitant of Kiev, Goldenweiser did not identify himself with either the Reds, the Whites, or the Ukrainian movement. His relationship with the Jewish environment was also ambiguous. Goldenweiser texts, despite their relative impartiality, reflect the position of a person trying to defend his professional and moral values in the conditions of the civil war in Russia. The memoirs that became the subject of our study reflect the specifics of the author's worldview and at the same time give an interesting, Kiev-centred, perspective of the events of 1917–1921.
Correlations and sum rules in a half-space for a quantum two-dimensional one-component plasma
Creators: name: Jancovici, B.
name: Samaj, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper is the continuation of a previous one [L. {Š}amaj and B. Jancovici, 2007 {\it J. Stat. Mech.} P02002]; for a nearly classical quantum fluid in a half-space bounded by a plain plane hard wall (no image forces), we had generalized the Wigner-Kirkwood expansion of the equilibrium statistical quantities in powers of Planck's constant $\hbar$. As a model system for a more detailed study, we consider the quantum two-dimensional one-component plasma: a system of charged particles of one species, interacting through the logarithmic Coulomb potential in two dimensions, in a uniformly charged background of opposite sign, such that the total charge vanishes. The corresponding classical system is exactly solvable in a variety of geometries, including the present one of a half-plane, when $βe^2=2$, where $β$ is the inverse temperature and $e$ is the charge of a particle: all the classical $n$-body densities are known. For the quantum one-component plasma, two sum rules involving the truncated two-body density (and, for one of them, the density profile) have been derived, a long time ago, by heuristic macroscopic arguments: one sum rule is about the asymptotic form along the wall of the truncated two-body density, the other one is about the dipole moment of the structure factor. In the two-dimensional case at $βe^2=2$, we have now explicit expressions up to order $\hbar^2$ of these two quantum densities, thus we can microscopically check the sum rules at this order. The checks are positive, reinforcing the idea that the sum rules are correct.
description: 15 pages, to appear in J. Stat. Mech. (JSTAT)
Domain wall dynamics of ferrimagnets induced by spin-current near the angular momentum compensation temperature
Creators: name: Yurlov, V. V.
name: Zvezdin, K. A.
name: Skirdkov, P. N.
name: Zvezdin, A. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report on a theoretical study of the spin-current excited dynamics of domain walls (DWs) in ferrimagnets in the vicinity of the angular momentum compensation point. Effective Lagrangian and nonlinear dynamic equations are derived for a two-sublattice ferrimagnet taking into account both spin-torques and external magnetic field. The dynamics of the DW before and after the Walker breakdown is calculated for any direction of the spin current polarization. It is shown that for the in-plane polarization of the spin current, the DW mobility reaches a maximum near the temperature of the angular momentum compensation. For the out-of-plane spin polarization, in contrast, a spin current with the densities below the Walker breakdown does not excite the dynamics of the DW. After overcoming the Walker breakdown, the domain wall velocity increases linearly with increasing the current density. In this spin-current polarization configuration the possibility of a gigahertz oscillation dynamics of the quasi-antiferromagnetic vector under the action of a damping-like torque in the angular momentum compensation point is demonstrated. Possible structures for experimental demonstration of the considered effects are discussed.
description: 7 pages, 6 figures
Simultaneous PIXE and RBS data analysis using Bayesian Inference with the DataFurnace code
Creators: name: Pascual-Izarra, C.
name: Reis, M. A.
name: Barradas, N. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Rutherford Backscattering Spectroscopy (RBS) and Particle Induced X-ray Emission (PIXE) techniques can be used to obtain complementary information about the characteristics of a sample but, traditionally, a gap has separated the available computer codes for analyzing data from each technique, being hard to simultaneously analyze data from the same sample. The recent development of a free and open source library, LibCPIXE, for PIXE simulation and analysis of arbitrary multilayered samples, has permitted to integrate this technique into the DataFurnace code which already handles many other IBA techniques such as Rutherford and non-Rutherford backscattering, elastic recoil detection, and non-resonant nuclear reaction analysis. The fitting capabilities of DataFurnace can therefore now be applied to PIXE spectra as well, including the Bayesian Inference analysis and the simultaneous and coherent fitting of multiple spectra from different techniques. Various examples are presented in which the simultaneous RBS and PIXE analysis allows us to obtain consistent results that cannot be obtained by independent analysis of the data from each technique.
description: 10 pages, 5 figures. Paper initially presented to IBA2005. Please cite the published version (DOI:10.1016/j.nimb.2006.03.190)
Unitarity Bounds for Semileptonic Decays in Lattice QCD
Creators: name: Di Carlo, M.
name: Martinelli, G.
name: Naviglio, M.
name: Sanfilippo, F.
name: Simula, S.
name: Vittorio, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we discuss in detail the non-perturbative determination of the momentum dependence of the form factors entering in semileptonic decays using unitarity and analyticity constraints. The method contains several new elements with respect to previous proposals and allows to extract, using suitable two-point functions computed non-perturbatively, the form factors at low momentum transfer $q^2$ from those computed explicitly on the lattice at large $q^2$, without any assumption about their $q^2$-dependence. The approach will be very useful for exclusive semileptonic $B$-meson decays, where the direct calculation of the form factors at low $q^2$ is particularly difficult due to large statistical fluctuations and discretisation effects. As a testing ground we apply our approach to the semileptonic $D \to K \ell ν_\ell$ decay, where we can compare the results of the unitarity approach to the explicit direct lattice calculation of the form factors in the full $q^2$-range. We show that the method is very effective and that it allows to compute the form factors with rather good precision.
description: 66 pages, 13 figures and 10 tables. Minor changes matched to the version accepted by PRD
Muon Anomalous Magnetic Moment and Higgs Potential Stability in the 331 Model from $SU(6)$
Creators: name: Li, Tianjun
name: Pei, Junle
name: Zhang, Wenxing
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a $SU(3)_c \times SU(3)_L \times U(1)_X$ model from a $SU(6)$ Grand Unified Theory (GUT). In order to explain the anomalous magnetic moments of muon and electron, we introduce two new scalar triplets without vacuum expectation values (VEVs) so that the leading contributions to $Δa_μ$ and $Δa_{e}$ can avoid the suppression from small muon mass. In addition, the Higgs potential stability of this 331 model is studied by giving a set of sufficient conditions to ensure the boundedness from below of the potential.
description: 15 pages
A study of logarithmic corrections and universal amplitude ratios in the two-dimensional 4-state Potts model
Creators: name: Shchur, Lev
name: Berche, Bertrand
name: Butera, Paolo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Monte Carlo (MC) and series expansion (SE) data for the energy, specific heat, magnetization and susceptibility of the two-dimensional 4-state Potts model in the vicinity of the critical point are analysed. The role of logarithmic corrections is discussed and an approach is proposed in order to account numerically for these corrections in the determination of critical amplitudes. Accurate estimates of universal amplitude ratios $A_+/A_-$, $Γ_+/Γ_-$, $Γ_T/Γ_-$ and $R_C^\pm$ are given, which arouse new questions with respect to previous works.
Mid-infrared frequency comb with 25 pJ threshold via CW-seeded optical parametric generation in nonlinear waveguide
Creators: name: Roiz, Mikhail
name: Lai, Jui-Yu
name: Karhu, Juho
name: Vainio, Markku
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate efficient generation of mid-infrared frequency combs based on continuous-wave-seeded femtosecond optical parametric generation in nonlinear waveguides. Conversion of the near-infrared pump to signal and idler light takes place with very high efficiency (74 %) and the threshold (25 pJ) is over 300 times lower than in bulk analogs. Relative intensity noise of the mid-infrared comb is exceptionally low, below 5*10-5 (detector-limited, integrated from 10 Hz to 2 MHz). Furthermore, the mid-infrared bandwidth can be increased by driving the process with broadband pump obtained via supercontinuum generation.
Optical pumping of charged excitons in unintentionally doped InAs quantum dots
Creators: name: Munoz-Matutano, G.
name: Alen, B.
name: Martinez-Pastor, J.
name: Seravalli, L.
name: Frigeri, P.
name: Franchi, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: As an alternative to commonly used electrical methods, we have investigated the optical pumping of charged exciton complexes addressing impurity related transitions with photons of the appropriate energy. Under these conditions, we demonstrate that the pumping fidelity can be very high while still maintaining a switching behavior between the different excitonic species. This mechanism has been investigated for single quantum dots of different size present in the same sample and compared with the direct injection of spectator electrons from nearby donors.
description: 4 pages and 3 figures submitted to APL
Stop! That toy is broken : validity and sensitivity of toy factory, a brief, gamified measure of response inhibition
Creators: name: Doniz, Isabella
Publisher: name: University of Tasmania
Year: 2024

description: We aimed to investigate whether our novel, gamified Stop-Signal task (SST), Toy Factory was a valid and sensitive measure of response inhibition by comparing performance with a standardised SST. Research has identified a link between poor response inhibition and relapse from substance use disorder treatment. Our rationale was to develop a more accessible and engaging measure for treatment settings. 36 participants (22 Female) aged 18-45 years attended two 4–6-hour sessions 3 -10 days apart, in a pre-determined counterbalanced condition sequence. We hypothesised a moderate correlation between outcome measures and expected there would be impaired response inhibition performance following BrACs of 0.05% ascending, 0.08% peak and 0.05% relative to placebo. We expected minimal learning effects on repeat testing and improved user experience. Toy Factory performance was correlated with the standard SST at BrAC 0.00% but not BrAC 0.08%. Additionally, reliability between test and retest was poor. Our task was sensitive to impaired response inhibition at BrACs 0.05% ascending, 0.08% peak but not 0.05% descending. There was no indication of learning effects and participants perceived Toy Factory as more engaging but more complex than a traditional SST. Future avenues are to examine whether gamified mechanics influence performance approaches.
The Merger Dynamics of the Galaxy Cluster Abell 1775: New Insights from Chandra and XMM-Newton for a Cluster Simultaneously Hosting a WAT and a NAT Radio Sources
Creators: name: Hu, Dan
name: Xu, Haiguang
name: Zhu, Zhenghao
name: Shan, Chenxi
name: Zhu, Yongkai
name: Fan, Shida
name: Zhao, Yuanyuan
name: Liu, Chengze
name: Siew, Hoongwah
name: Zhang, Zhongli
name: Gu, Liyi
name: Johnston-Hollitt, Melanie
name: Kang, Xi
name: Tan, Qinghua
name: Chang, Jiang
name: Wu, Xiang-ping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new study of the merger dynamics of Abell~1775 by analyzing the high-quality Chandra and XMM-Newton archival data. We confirm/identify an arc-shaped edge (i.e., the head) at $\sim48$~kpc west of the X-ray peak, a split cold gas tail that extends eastward to $\sim163$~kpc, and a plume of spiral-like X-ray excess (within about $81-324$~kpc northeast of the cluster core) that connects to the end of the tail. The head, across which the projected gas temperature rises outward from $3.39_{-0.18}^{+0.28}$~keV to $5.30_{-0.43}^{+0.54}$~keV, is found to be a cold front with a Mach number of $\mathcal{M}\sim0.79$. Along the surfaces of the cold front and tail, typical KHI features (noses and wings, etc.) are found and are used to constrain the upper limit of the magnetic field ($\sim11.2~μ$G) and the viscosity suppression factor ($\sim0.01$). Combining optical and radio evidence we propose a two-body merger (instead of systematic motion in a large-scale gas environment) scenario and have carried out idealized hydrodynamic simulations to verify it. We find that the observed X-ray emission and temperature distributions can be best reproduced with a merger mass ratio of 5 after the first pericentric passage. The NAT radio galaxy is thus more likely to be a single galaxy falling into the cluster center at a relative velocity of 2800~$\rm km~s^{-1}$, a speed constrained by its radio morphology. The infalling subcluster is expected to have a relatively low gas content, because only a gas-poor subcluster can cause central-only disturbances as observed in such an off-axis merger.
description: 12 figures, 5 tables, accepted for publication in the ApJ
Reduction of boundary effects in spiral MRI experiment PROMISE
Creators: name: Szklarski, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Magnetorotational instability (MRI) is one of the most important and most common instabilities in astrophysics, it is widely accepted that it serves as a source of turbulent viscosity in accretion disks -- the most energy efficient objects in the Universe. However it is very difficult to bring this process down on earth and model it in a laboratory experiment. Several different approaches have been proposed, one of the most recent is PROMISE (Potsdam-ROssendorf Magnetorotational InStability Experiment). It consists of a flow of a liquid metal between two rotating cylinders under applied current-free spiral magnetic field. The cylinders must be covered with plates which introduce additional end-effects which alter the flow and make it more difficult to clearly distinguish between MRI stable and unstable state. In this paper we propose simple and inexpensive improvement to the PROMISE experiment which would reduce those undesirable effects.
description: 8 pages, 9 figures. Accepted to AN
FUDGE: Controlled Text Generation With Future Discriminators
Creators: name: Yang, Kevin
name: Klein, Dan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose Future Discriminators for Generation (FUDGE), a flexible and modular method for controlled text generation. Given a pre-existing model G for generating text from a distribution of interest, FUDGE enables conditioning on a desired attribute a (for example, formality) while requiring access only to G's output logits. FUDGE learns an attribute predictor operating on a partial sequence, and uses this predictor's outputs to adjust G's original probabilities. We show that FUDGE models terms corresponding to a Bayesian decomposition of the conditional distribution of G given attribute a. Moreover, FUDGE can easily compose predictors for multiple desired attributes. We evaluate FUDGE on three tasks -- couplet completion in poetry, topic control in language generation, and formality change in machine translation -- and observe gains in all three tasks.
description: NAACL 2021
Stop! that toy is broken : validity and sensitivity of toy factory, a brief, gamified measure of response inhibition
Creators: name: Doniz, Isabella
Publisher: name: University of Tasmania
Year: 2024

description: We aimed to investigate whether our novel, gamified Stop-Signal task (SST), Toy Factory was a valid and sensitive measure of response inhibition by comparing performance with a standardised SST. Research has identified a link between poor response inhibition and relapse from substance use disorder treatment. Our rationale was to develop a more accessible and engaging measure for treatment settings. 36 participants (22 Female) aged 18-45 years attended two 4–6-hour sessions 3 -10 days apart, in a pre-determined counterbalanced condition sequence. We hypothesised a moderate correlation between outcome measures and expected there would be impaired response inhibition performance following BrACs of 0.05% ascending, 0.08% peak and 0.05% relative to placebo. We expected minimal learning effects on repeat testing and improved user experience. Toy Factory performance was correlated with the standard SST at BrAC 0.00% but not BrAC 0.08%. Additionally, reliability between test and retest was poor. Our task was sensitive to impaired response inhibition at BrACs 0.05% ascending, 0.08% peak but not 0.05% descending. There was no indication of learning effects and participants perceived Toy Factory as more engaging but more complex than a traditional SST. Future avenues are to examine whether gamified mechanics influence performance approaches.
Kilohertz laser ablation for doping helium nanodroplets
Creators: name: Mudrich, M.
name: Forkl, B.
name: Mueller, S.
name: Dvorak, M.
name: Buenermann, O.
name: Stienkemeier, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: A new setup for doping helium nanodroplets by means of laser ablation at kilohertz repetition rate is presented. The doping process is characterized and two distinct regimes of laser ablation are identified. The setup is shown to be efficient and stable enough to be used for spectroscopy, as demonstrated on beam-depletion spectra of lithium atoms attached to helium nanodroplets. For the first time, helium droplets are doped with high temperature refractory materials such as titanium and tantalum. Doping with the non-volatile DNA basis Guanine is found to be efficient and a number of oligomers are detected.
No multi-graviton theories in the presence of a Dirac field
Creators: name: Bizdadea, C.
name: Cioroianu, E. M.
name: Lungu, A. C.
name: Saliu, S. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The cross-couplings among several massless spin-two fields (described in the free limit by a sum of Pauli-Fierz actions) in the presence of a Dirac field are investigated in the framework of the deformation theory based on local BRST cohomology. Under the hypotheses of locality, smoothness of the interactions in the coupling constant, Poincare invariance, (background) Lorentz invariance and the preservation of the number of derivatives on each field, we prove that there are no consistent cross-interactions among different gravitons in the presence of a Dirac field. The basic features of the couplings between a single Pauli-Fierz field and a Dirac field are also emphasized.
description: 48 pages
Diagnostics for ultrashort X-ray pulses using silicon trackers
Creators: name: Wen, Jiaxing
name: Yu, Minghai
name: Wu, Yuchi
name: Zeng, Ming
name: Zhang, Bo
name: Cang, Jirong
name: Zhang, Yuge
name: Ma, Ge
name: Yang, Yue
name: Mo, Wenbo
name: Zhao, Zongqing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The spectrum of laser-plasma generated X-rays is very important, it characterizes electron dynamics in plasma and is basic for applications. However, the accuracies and efficiencies of existing methods to diagnose the spectrum of laser-plasma based X-ray pulse are not very high, especially in the range of several hundred keV. In this study, a new method based on electron tracks detection to measure the spectrum of laser-plasma produced X-ray pulses is proposed and demonstrated. Laser-plasma generated X-rays are scattered in a multi-pixel silicon tracker. Energies and scattering directions of Compton electrons can be extracted from the response of the detector, and then the spectrum of X-rays can be reconstructed. Simulations indicate that the energy resolution of this method is approximately 20% for X-rays from 200 to 550 keV for a silicon-on-insulator pixel detector with 12 $\rm μ$m pixel pitch and 500 $\rm μ$m depletion region thickness. The results of a proof-of-principle experiment based on a Timepix3 detector are also shown.
description: final manuscript, 30 pages, 17 figures, published on NIM-A
title: Семиотический анализ автобиографического нарратива Марины Цветаевой – возможности и ограничения
Creators: name: Jewdokimow, Dorota
Publisher: name: AvtobiografiЯ
Year: 2020

description: A large part of Marina Tsvetaeva's journals describe the experience of the first years of her life in Moscow after the 1917 revolution. Tsvetaeva divides her experiences of post-revolutionary reality into two separate spheres: internal life, being (ros. bytije) and external life, existence (ros. byt), where internal life is valued positively, while external life is assessed negatively or neutral. The sphere of existence, in Tsvetaeva's testimony, constitutes the essence of the revolution and it is the description of this sphere, with the simultaneous definition of its relationship with "being", that is the main aim of this article. Another goal will be to define the boundaries of the semiotic analysis of an autobiographical text and the possibility of a pre-text experience, primary to its textual approach. In Tsvetaeva's text, I distinguish those fragments that refer directly to her individual experience of a revolution located in the area of individual emotionality. Determining to what extent the emotional experience is physiological and therefore pre-discursive, and to what extent cultural and therefore discursive, will depend on the possibility of its semiotic analysis.
3-point off-shell vertex in scalar QED in arbitrary gauge and dimension
Creators: name: Bashir, A.
name: Concha-Sanchez, Y.
name: Delbourgo, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the complete one-loop off-shell three-point scalar-photon vertex in arbitrary gauge and dimension for Scalar Quantum Electrodynamics. Explicit results are presented for the particular cases of dimensions 3 and 4 both for massive and massless scalars. We then propose non-perturbative forms of this vertex that coincide with the perturbative answer to order $e^2$.
description: Uses axodraw
Self consistent theory of unipolar charge-carrier injection in metal/insulator/metal systems
Creators: name: Neumann, F.
name: Genenko, Y. A.
name: Melzer, C.
name: von Seggern, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A consistent device model to describe current-voltage characteristics of metal/insulator/metal systems is developed. In this model the insulator and the metal electrodes are described within the same theoretical framework by using density of states distributions. This approach leads to differential equations for the electric field which have to be solved in a self consistent manner by considering the continuity of the electric displacement and the electrochemical potential in the complete system. The model is capable of describing the current-voltage characteristics of the metal/insulator/metal system in forward and reverse bias for arbitrary values of the metal/ insulator injection barriers. In the case of high injection barriers, approximations are provided offering a tool for comparison with experiments. Numerical calculations are performed exemplary using a simplified model of an organic semiconductor.
description: 21 pages, 8 figures
title: Epilogue. High Hopes: Autonomy and the Identity of the EU
Creators: name: Lenaerts, Koen
name: Gutiérrez-Fons, José A.
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2024
Subjects: subject: identity
subject: common legal order
subject: values
subject: constitutional alignment
subject: framework of reference
subject: international law

description: European Papers - A Journal on Law and Integration, 2023 8(3), 1495-1511
description: I. Introduction. – II. The identity of the EU and European values. – III. A constitutional moment: becoming a member of the EU. – IV. The principle of autonomy and the wider world. – V. Concluding remarks.
description: This epilogue rejects the idea that the principle of autonomy is an end in itself or a tool for judicial self-empowerment. On the contrary, we support the contention that that principle serves first and foremost as a means of promoting and protecting the values on which the EU is founded. In so doing, that principle also contributes to defining the identity of the EU as a common legal order. Compliance with those values does not mean that the Member States must adopt a specific constitutional model. Instead, those values limit themselves to providing a framework of reference within which the Member States may make their own constitutional choices. Finally, it is submitted that in times when authoritarian tendencies are on the rise, the principle of autonomy allows the EU to operate as a beacon of freedom, democracy and justice for the wider world.
Effective mean-field equations for cigar-shaped and disk-shaped Bose-Einstein condensates
Creators: name: Mateo, A. Muñoz
name: Delgado, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: By applying the standard adiabatic approximation and using the accurate analytical expression for the corresponding local chemical potential obtained in our previous work [Phys. Rev. A \textbf{75}, 063610 (2007)] we derive an effective 1D equation that governs the axial dynamics of mean-field cigar-shaped condensates with repulsive interatomic interactions, accounting accurately for the contribution from the transverse degrees of freedom. This equation, which is more simple than previous proposals, is also more accurate. Moreover, it allows treating condensates containing an axisymmetric vortex with no additional cost. Our effective equation also has the correct limit in both the quasi-1D mean-field regime and the Thomas-Fermi regime and permits one to derive fully analytical expressions for ground-state properties such as the chemical potential, axial length, axial density profile, and local sound velocity. These analytical expressions remain valid and accurate in between the above two extreme regimes. Following the same procedure we also derive an effective 2D equation that governs the transverse dynamics of mean-field disk-shaped condensates. This equation, which also has the correct limit in both the quasi-2D and the Thomas-Fermi regime, is again more simple and accurate than previous proposals. We have checked the validity of our equations by numerically solving the full 3D Gross-Pitaevskii equation.
description: 11 pages, 7 figures; Final version published in Phys. Rev. A; Manuscript put in the archive and submitted to Phys. Rev. A on 17 July 2007