cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlations between the strange quark condensate, strange quark mass, and kaon PCAC relation
Creators: name: Harnett, D.
name: Ho, J.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Correlations between the strange quark mass, strange quark condensate $\langle \bar s s\rangle$, and the kaon partially conserved axial current (PCAC) relation are developed. The key dimensionless and renormalization-group invariant quantities in these correlations are the ratio of the strange to non-strange quark mass $r_m=m_s/m_q$, the condensate ratio $r_c=\langle \bar s s\rangle/\langle \bar q q\rangle$, and the kaon PCAC deviation parameter $r_p=-m_s\langle \bar s s+\bar q q\rangle/2f_K^2m_K^2$. The correlations define a self-consistent trajectory in the $\{r_m,r_c,r_p\}$ parameter space constraining strange quark parameters that can be used to assess the compatibility of different predictions of these parameters. Combining the constraint with Particle Data Group (PDG) values of $r_m$ results in $\{r_c,r_p\}$ constraint trajectories that are used to asses the self-consistency of various theoretical determinations of $\{r_c,r_p\}$. The most precise determinations of $r_c$ and $r_p$ are shown to be mutually consistent with the constraint trajectories and provide improved bounds on $r_p$. In general, the constraint trajectories combined with $r_c$ determinations tend to provide more accurate bounds on $r_p$ than direct determinations. The $\{r_c,r_p\}$ correlations provide a natural identification of a self-consistent set of strange quark mass and strange quark condensate parameters.
description: 9 pages, 6 figures, 1 table. Typo (factor of 1/2 in eq. (1)) corrected from PRD version
The SDSS-GALEX viewpoint of the truncated red sequence in field environments at z~0
Creators: name: Haines, C. P.
name: Gargiulo, A.
name: Merluzzi, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine GALEX near-UV photometry with a volume-limited sample of local (0.0052A. This contamination is greatest at faint magnitudes (Mr>-19) and in field regions where as many as three-quarters of red sequence galaxies are star-forming, and as such has important consequences for following the build-up of the red sequence. We find that the NUV-r colour instead allows a much more robust separation of passively-evolving and star-forming galaxies, which allows the build-up of the UV-selected red sequence with redshift and environment to be directly interpreted in terms of the assembly of stellar mass in passively-evolving galaxies. We find that in isolated field regions the number density of UV-optical red sequence galaxies declines rapidly at magnitudes fainter than Mr~-19 and appears completely truncated at Mr~-18. This confirms the findings of Haines et al. (2007) that no passively-evolving dwarf galaxies are found more than two virial radii from a massive halo, whether that be a group, cluster or massive galaxy. These results support the downsizing paradigm whereby the red sequence is assembled from the top down, being already largely in place at the bright end by z~1, and the faint end filled in at later epochs in clusters and groups through environment-related processes such as ram-pressure stripping or galaxy harassment.
description: 12 pages, 7 figures, MNRAS submitted
Studying Reionization with Ly-alpha Emitters
Creators: name: McQuinn, Matthew
name: Hernquist, Lars
name: Zaldarriaga, Matias
name: Dutta, Suvendra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that observations of high-redshift Ly-alpha emitters (LAEs) have the potential to provide definitive evidence for reionization in the near future. Using 200 Mpc radiative transfer simulations, we calculate the effect that patchy reionization has on the line profile, on the luminosity function, and, most interestingly, on the clustering of emitters for several realistic models of reionization. Reionization increases the measured clustering of emitters, and we show that this enhancement would be essentially impossible to attribute to anything other than reionization. Our results motivate looking for the signature of reionization in existing LAE data. We find that for stellar reionization scenarios the angular correlation function of the 58 LAEs in the Subaru Deep Field z = 6.6 photometric sample is more consistent with a fully ionized universe (mean volume ionized fraction x_i = 1) than a universe with x_i < 0.5 at >2-sigma confidence level. Measurements in the next year on Subaru will increase their z = 6.6 LAE sample by a factor of five and tighten these limits. If the clustering signature of reionization is detected in a LAE survey, a comparison with a Lyman-break or a H-alpha survey in the same field would confirm the reionization hypothesis. We discuss the optimal LAE survey specifications for detecting reionization, with reference to upcoming programs.
description: 24 pages, 17 figures, accepted by MNRAS
Search for chargino-neutralino production in ppbar collisions at sqrt(s) = 1.96 TeV
Creators: name: CDF Collaboration
name: Aaltonen, T.
name: Manca, Giulia
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the results of a search for associated production of the chargino and neutralino supersymmetric particles using up to 1.1 fb-1 of integrated luminosity collected by the CDF II experiment at the Tevatron ppbar collider at a center-of-mass energy of 1.96 TeV. The search is conducted by analyzing events with a large transverse momentum imbalance and either three charged leptons or two charged leptons of the same electric charge. The numbers of observed events are found to be consistent with standard model expectations. Upper limits on the production cross section are derived in different theoretical models. In one of these models a lower limit on the mass of the chargino is set at 129 GeV/c^2 at the 95% confidence level.
description: To be submitted to Phys.Rev.Lett
Κοινότητες Αιγύπτιων και Σουδανών μουσουλμάνων μεταναστών/στριών και προσφύγων στην Αθήνα: μορφές εκπαίδευσης και ενδυνάμωση ταυτότητας των παιδιών τους
Creators: name: Σορώτου, Φλώρα Μ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Μετανάστες/στριες και πρόσφυγες
Μουσουλμανικές κοινότητες
Διαπολιτισμική εκπαίδευση
Ενδυνάμωση ταυτότητας
Immigrants and refugees
Muslim communities
Intercultural education
Identity empowerment

description: Οι μετανάστες/στριες και οι πρόσφυγες, είναι οι άνθρωποι που βιώνουν σε υπέρτατο βαθμό το αίσθημα του «ξεριζωμού», της ανασφάλειας και της ανεπιθύμητης παρουσίας τους, σε όποια χώρα καταφύγουν. Δεν αποτελούν εξαίρεση οι μετανάστες/στριες και οι πρόσφυγες στην Ελλάδα. Η παρούσα διδακτορική διατριβή, ερευνά τις κοινωνικές και πολιτισμικές συνθήκες των κοινοτήτων των Αιγύπτιων και Σουδανών, που ζουν και μεγαλώνουν τα παιδιά τους, ισορροπώντας ανάμεσα στην αραβική παράδοση των οικογενειών, τη θρησκεία του Ισλάμ και την ελληνική κοινωνία. Πλησιάζοντας τις κοινότητες των μεταναστών/στριών και προσφύγων, γίνεται προσπάθεια να αναδυθούν οι κοινές πορείες, οι εμπειρίες και οι προσδοκίες των μελών τους, καθώς και να μελετηθεί η δυνατότητα ενταξιακής πορείας των παιδιών τους μέσα από μορφές διαπολιτισμικής εκπαίδευσης. Αυτά τα παιδιά, όπως και όλα τα παιδιά άλλωστε, χρειάζονται από τις δομές του ελληνικού εκπαιδευτικού συστήματος, ενδυνάμωση να διαχειριστούν τις πολλαπλές ταυτότητες που φέρουν και κάλυψη του κοινωνικού δικαιώματος στην εκπαίδευση, έτσι ώστε να αποτελούν μελλοντικούς ισότιμους πολίτες της χώρας ή οποιασδήποτε άλλης μεριάς του κόσμου βρεθούν.
description: Immigrants and refugees are the ones that experience in the highest possible level of being forced to move away from their homeland, living in insecurity, and suffering from not being welcomed by the dominant social groups of the host countries. Immigrants and refugees in Greece are not an exception. This doctoral dissertation investigates from on hand the socio-cultural aspects of Egyptian and Sudanese communities, and from the other hand, the context in which their children are being raised, balancing among their cultural tradition, Islam religion, and Greek society. Approaching immigrant and refugee communities, we try to highlight the common perspectives of those two socio-cultural statuses, the experiences and expectations of the member of those immigrant communities as well as the establishment of inclusive teaching interventions for the students of immigrants within the context of multicultural education. All children, among them immigrant children, need to be supported by the Greek education system to be empowered to manage their socio-cultural identities as well as make use of the social right of education in order for the students to be able to become equal future citizens of the host country.
title: Wirksam ist nicht gleich wirksam: Zur Evaluation von Interventionsansätzen im Bereich "Stromsparen in Privathaushalten"
Creators: name: Pamme, Hildegard
Publisher: name: Westfälische Wilhelms-Universität, Freie Universität Berlin
Year: 2011
Subjects: subject: 300 Sozialwissenschaften

description: Transpose
Flexible modification of Gauss--Newton method and its stochastic extension
Creators: name: Yudin, Nikita
name: Gasnikov, Alexander
Publisher: name: Weierstrass Institute
Year: 2021
Subjects: subject: Systems of nonlinear equations
subject: empirical risk minimization
subject: Gauss--Newton method
subject: trust region methods
subject: non-convex optimization
subject: inexact proximal mapping
subject: inexact oracle
subject: stochastic optimization
subject: stochastic approximation
subject: overparametrized model
subject: weak growth condition
subject: Polyak--Lojasiewicz condition
subject: complexity estimate
subject: 90C30
subject: 90C25
subject: 90C26

description: This work presents a novel version of recently developed Gauss--Newton method for solving systems of nonlinear equations, based on upper bound of solution residual and quadratic regularization ideas. We obtained for such method global convergence bounds and under natural non-degeneracy assumptions we present local quadratic convergence results. We developed stochastic optimization algorithms for presented Gauss--Newton method and justified sub-linear and linear convergence rates for these algorithms using weak growth condition (WGC) and Polyak--Lojasiewicz (PL) inequality. We show that Gauss--Newton method in stochastic setting can effectively find solution under WGC and PL condition matching convergence rate of the deterministic optimization method. The suggested method unifies most practically used Gauss--Newton method modifications and can easily interpolate between them providing flexible and convenient method easily implementable using standard techniques of convex optimization.
Hydrodynamical simulations of the jet in the symbiotic star MWC 560 III. Application to X-ray jets in symbiotic stars
Creators: name: Stute, Matthias
name: Sahai, Raghvendra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In papers I and II in this series, we presented hydrodynamical simulations of jet models with parameters representative of the symbiotic system MWC 560. These were simulations of a pulsed, initially underdense jet in a high density ambient medium. Since the pulsed emission of the jet creates internal shocks and since the jet velocity is very high, the jet bow shock and the internal shocks are heated to high temperatures and should therefore emit X-ray radiation. In this paper, we investigate in detail the X-ray properties of the jets in our models. We have focused our study on the total X-ray luminosity and its temporal variability, the resulting spectra and the spatial distribution of the emission. Temperature and density maps from our hydrodynamical simulations with radiative cooling presented in the second paper are used together with emissivities calculated with the atomic database ATOMDB. The jets in our models show extended and variable X-ray emission which can be characterized as a sum of hot and warm components with temperatures that are consistent with observations of CH Cyg and R Aqr. The X-ray spectra of our model jets show emission line features which correspond to observed features in the spectra of CH Cyg. The innermost parts of our pulsed jets show iron line emission in the 6.4 - 6.7 keV range which may explain such emission from the central source in R Aqr. We conclude that MWC 560 should be detectable with Chandra or XMM-Newton, and such X-ray observations will provide crucial for understanding jets in symbiotic stars.
description: 10 pages, 12 figures, accepted for publication in ApJ, uses emulateapj
Why should anyone care about computing with anyons?
Creators: name: Brennen, Gavin K.
name: Pachos, Jiannis K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we present a pedagogical introduction of the main ideas and recent advances in the area of topological quantum computation. We give an overview of the concept of anyons and their exotic statistics, present various models that exhibit topological behavior, and we establish their relation to quantum computation. Possible directions for the physical realization of topological systems and the detection of anyonic behavior are elaborated.
description: 22 pages, 13 figures. Some changes to existing sections, several references added, and a new section on criteria for TQO and TQC in lattice systems
The origin of strong correlations and superconductivity in Na$_x$CoO$_2$
Creators: name: Khaliullin, G.
name: Chaloupka, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose a minimal model resolving a puzzle of enigmatic correlations observed in sodium-rich Na$_x$CoO$_2$ where one expects a simple, free motion of the dilute $S=1/2$ holes doped into a band insulator NaCoO$_2$. The model also predicts singlet superconductivity at experimentally observed compositions. The model is based on a key property of cobalt oxides -- the spin-state quasidegeneracy of CoO$_6$ octahedral complex -- leading to an unusual physics of, {\it e.g.}, LaCoO$_3$. We show that correlated hopping between $t_{2g}$ and $e_g$ states leads to the spin-polaron physics at $x\sim 1$, and to an extended s-wave pairing at larger doping when coherent fermionic bands are formed.
description: 7 pages, 6 figures, extended version as published in PRB
Efficient and Versatile Toolbox for Analysis of Time-Tagged Measurements
Creators: name: Lin, Zuzeng
name: Schweickert, Lucas
name: Gyger, Samuel
name: Jöns, Klaus D.
name: Zwiller, Val
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Acquisition and analysis of time-tagged events is a ubiquitous tool in scientific and industrial applications. With increasing time resolution, number of input channels, and acquired events, the amount of data can be overwhelming for standard processing techniques. We developed the Extensible Time-tag Analyzer (ETA), a powerful and versatile, yet easy to use software to efficiently analyze and display time-tagged data. Our tool allows for flexible extraction of correlation from time-tagged data beyond start-stop measurements that were traditionally used. A combination of state diagrams and simple code snippets allows for analysis of arbitrary complexity while keeping computational efficiency high.
description: 16 pages, 8 figures
Ian Moura Gomes do Nascimento - 'Ao Suportar o Insuportável e Sofrer o Insofrível' - Análise Retórica do Discurso de Hirohito (2021, Humanidades em Revista).pdf
Creators: name: Nascimento, Ian
Publisher: name: figshare
Year: 2021
Subjects: subject: 210302 Asian History
subject: FOS: History and archaeology

description: This article aims to analyze the relationship between the rhetoric of Emperor Hirohito's speech and the historical context of the moment through the transcribed speech document, identifying the interactions that the public had when listening to the transmission and the messages that the Emperor wanted to communicate at that juncture to legitimize the decision to surrender, something against the Japanese socio-cultural vision of that period.
Post-Newtonian gravitational radiation and equations of motion via direct integration of the relaxed Einstein equations. V. Evidence for the strong equivalence principle to second post-Newtonian order
Creators: name: Mitchell, Thomas
name: Will, Clifford M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using post-Newtonian equations of motion for fluid bodies valid to the second post-Newtonian order, we derive the equations of motion for binary systems with finite-sized, non-spinning but arbitrarily shaped bodies. In particular we study the contributions of the internal structure of the bodies (such as self-gravity) that would diverge if the size of the bodies were to shrink to zero. Using a set of virial relations accurate to the first post-Newtonian order that reflect the stationarity of each body, and redefining the masses to include 1PN and 2PN self-gravity terms, we demonstrate the complete cancellation of a class of potentially divergent, structure-dependent terms that scale as s^{-1} and s^{-5/2}, where s is the characteristic size of the bodies. This is further evidence of the Strong Equivalence Principle, and supports the use of post-Newtonian approximations to derive equations of motion for strong-field bodies such as neutron stars and black holes. This extends earlier work done by Kopeikin.
description: 14 pages, submitted to Phys. Rev. D; small changes to coincide with published version
GCN-ALP: Addressing Matching Collisions in Anchor Link Prediction
Creators: name: Gao, Hao
name: Wang, Yongqing
name: Lyu, Shanshan
name: Shen, Huawei
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Nowadays online users prefer to join multiple social media for the purpose of socialized online service. The problem \textit{anchor link prediction} is formalized to link user data with the common ground on user profile, content and network structure across social networks. Most of the traditional works concentrated on learning matching function with explicit or implicit features on observed user data. However, the low quality of observed user data confuses the judgment on anchor links, resulting in the matching collision problem in practice. In this paper, we explore local structure consistency and then construct a matching graph in order to circumvent matching collisions. Furthermore, we propose graph convolution networks with mini-batch strategy, efficiently solving anchor link prediction on matching graph. The experimental results on three real application scenarios show the great potentials of our proposed method in both prediction accuracy and efficiency. In addition, the visualization of learned embeddings provides us a qualitative way to understand the inference of anchor links on the matching graph.
description: 8 pages, 5figures, ICKG 2020
Strong Electron-Hole Exchange in Coherently Coupled Quantum Dots
Creators: name: Falt, Stefan
name: Atature, Mete
name: Tureci, Hakan E.
name: Zhao, Yong
name: Badolato, Antonio
name: Imamoglu, Atac
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated few-body states in vertically stacked quantum dots. Due to small inter-dot tunneling rate, the coupling in our system is in a previously unexplored regime where electron-hole exchange is the dominant spin interaction. By tuning the gate bias, we are able to turn this coupling off and study a complementary regime where total electron spin is a good quantum number. The use of differential transmission allows us to obtain unambiguous signatures of the interplay between electron and hole spin interactions. Small tunnel coupling also enables us to demonstrate all-optical charge sensing, where conditional exciton energy shift in one dot identifies the charging state of the coupled partner.
description: 10 pages, 3 figures
Fermi-liquid and Fermi surface geometry effects in propagation of low frequency electromagnetic waves through thin metal films
Creators: name: Zimbovskaya, Natalya A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the present work we theoretically analyze the contribution from a transverse Fermi-liquid collective mode to the transmission of electromagnetic waves through a thin film of a clean metal in the presence of a strong external magnetic field. We show that at the appropriate Fermi surface geometry the transverse Fermi-liquid wave may appear in conduction electrons liquid at frequencies $ω$ significantly smaller than the cyclotron frequency of charge carriers $Ω$ provided that the mean collision frequency $τ^{-1}$ is smaller than $ω.$ Also, we show that in realistic metals size oscillations in the transmission coefficient associated with the Firmi-liquid mode may be observable in experiments. Under certain conditions these oscillations may predominate over the remaining size effects in the transmission coefficient.
description: 9 pages, 5 figures, text added
Estimating the variance of Shannon entropy
Creators: name: Ricci, Leonardo
name: Perinelli, Alessio
name: Castelluzzo, Michele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The statistical analysis of data stemming from dynamical systems, including, but not limited to, time series, routinely relies on the estimation of information theoretical quantities, most notably Shannon entropy. To this purpose, possibly the most widespread tool is provided by the so-called plug-in estimator, whose statistical properties in terms of bias and variance were investigated since the first decade after the publication of Shannon's seminal works. In the case of an underlying multinomial distribution, while the bias can be evaluated by knowing support and data set size, variance is far more elusive. The aim of the present work is to investigate, in the multinomial case, the statistical properties of an estimator of a parameter that describes the variance of the plug-in estimator of Shannon entropy. We then exactly determine the probability distributions that maximize that parameter. The results presented here allow to set upper limits to the uncertainty of entropy assessments under the hypothesis of memoryless underlying stochastic processes.
description: 9 pages, 5 figures. Published in Physical Review E
Amine-Gold Linked Single-Molecule Junctions: Experiment and Theory
Creators: name: Quek, Su Ying
name: Venkataraman, Latha
name: Choi, Hyoung Joon
name: Louie, Steven G.
name: Hybertsen, Mark S.
name: Neaton, J. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The measured conductance distribution for single molecule benzenediamine-gold junctions, based on 59,000 individual conductance traces recorded while breaking a gold point contact in solution, has a clear peak at 0.0064 G$_{0}$ with a width of $\pm$ 40%. Conductance calculations based on density functional theory (DFT) for 15 distinct junction geometries show a similar spread. Differences in local structure have a limited influence on conductance because the amine-Au bonding motif is well-defined and flexible. The average calculated conductance (0.046 G$_{0}$) is seven times larger than experiment, suggesting the importance of many-electron corrections beyond DFT.
title: European Drama and Performance Studies. 2013, n° 1
title: Le développement du « grand spectacle » en France : politiques, gestion, innovations (1715-1864)
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2013
Subjects: subject: Théâtre
subject: XVIIIe siècle
subject: XIXe siècle
subject: Politique culturelle
subject: Spectacles
subject: Costumes
subject: Décors

description: Contributeurs : Katherine Astbury, Aurélie Barbuscia, Patrick Berthier, Karina Cahill, Noémie Courtès, Timothy De Paepe, Angeliki Giannouli, Marjolein Hageman, Cary Hollinshead-Strick, Pauline Lemaigre-Gaffier, Jacqueline Razgonnikoff, Solveig Serre et Cristina Trinchero.
Towards experimental entanglement connection with atomic ensembles in the single excitation regime
Creators: name: Laurat, J.
name: Chou, C. W.
name: Deng, H.
name: Choi, K. S.
name: Felinto, D.
name: de Riedmatten, H.
name: Kimble, H. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a protocol for performing entanglement connection between pairs of atomic ensembles in the single excitation regime. Two pairs are prepared in an asynchronous fashion and then connected via a Bell measurement. The resulting state of the two remaining ensembles is mapped to photonic modes and a reduced density matrix is then reconstructed. Our observations confirm for the first time the creation of coherence between atomic systems that never interacted, a first step towards entanglement connection, a critical requirement for quantum networking and long distance quantum communications.
Discovery of two new accreting pulsating white dwarf stars
Creators: name: Mukadam, Anjum S.
name: Gänsicke, B. T.
name: Szkody, P.
name: Aungwerojwit, A.
name: Howell, Steve B.
name: Fraser, O. J.
name: Silvestri, N. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of two new accreting pulsating white dwarf stars amongst the cataclysmic variables of the Sloan Digital Sky Survey: SDSSJ074531.91+453829.5 and SDSSJ091945.10+085710.0. We observe high amplitude non-sinusoidal variations of 4.5-7% at a period close to 1230s in the optical light curves of SDSSJ074531.91+453829.5 and a low amplitude variation of 0.7-1.6% near 260s in the light curves of SDSSJ091945.10+085710.0. We infer that these optical variations are a consequence of nonradial g-mode pulsations in the accreting primary white dwarfs of these cataclysmic variables. However we cannot rule out the remote possibility that the 260s period could be the spin period of the accreting white dwarf SDSSJ091945.10+085710.0. We also uncovered a non-variable SDSSJ171145.08+301320.0 during our search; our two observing runs exclude any pulsation related periodicities in the range of 85-1400s with an amplitude greater than or equal to 0.5%. This discovery paper brings the total number of known accreting white dwarf pulsators to eleven.
description: 7 pages, 4 figures, accepted for publication in ApJ
GRB jet structure and the jet break
Creators: name: Lamb, Gavin P
name: Kann, D. Alexander
name: Fernández, Joseph John
name: Mandel, Ilya
name: Levan, Andrew J.
name: Tanvir, Nial R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the shape of the jet break in within-beam gamma-ray burst (GRB) optical afterglows for various lateral jet structure profiles. We consider cases with and without lateral spreading and a range of inclinations within the jet core half-opening angle, $θ_c$. We fit model and observed afterglow lightcurves with a smoothly-broken power-law function with a free-parameter $κ$ that describes the sharpness of the break. We find that the jet break is sharper ($κ$ is greater) when lateral spreading is included than in the absence of lateral spreading. For profiles with a sharp-edged core, the sharpness parameter has a broad range of $0.1\lesssimκ\lesssim4.6$, whereas profiles with a smooth-edged core have a narrower range of $0.1\lesssimκ\lesssim2.2$ when models both with and without lateral spreading are included. For sharp-edged jets, the jet break sharpness depends strongly on the inclination of the system within $θ_c$, whereas for smooth-edged jets, $κ$ is more strongly dependent on the size of $θ_c$. Using a sample of 20 GRBs we find nine candidate smooth-edged jet structures and eight candidate sharp-edged jet structures, while the remaining three are consistent with either. The shape of the jet break, as measured by the sharpness parameter $κ$, can be used as an initial check for the presence of lateral structure in within-beam GRBs where the afterglow is well-sampled at and around the jet-break time.
description: 13 pages, 5 figures, accepted for publication in MNRAS 15/07/21
Chaos and Complexity of quantum motion
Creators: name: Prosen, Tomaz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The problem of characterizing complexity of quantum dynamics - in particular of locally interacting chains of quantum particles - will be reviewed and discussed from several different perspectives: (i) stability of motion against external perturbations and decoherence, (ii) efficiency of quantum simulation in terms of classical computation and entanglement production in operator spaces, (iii) quantum transport, relaxation to equilibrium and quantum mixing, and (iv) computation of quantum dynamical entropies. Discussions of all these criteria will be confronted with the established criteria of integrability or quantum chaos, and sometimes quite surprising conclusions are found. Some conjectures and interesting open problems in ergodic theory of the quantum many problem are suggested.
description: 45 pages, 22 figures, final version, at press in J. Phys. A, special issue on Quantum Information
Search for a High-Mass Diphoton State and Limits on Randall-Sundrum Gravitons at CDF
Creators: name: CDF Collaboration
name: Aaltonen, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have performed a search for new particles which decay to two photons using 1.2/fb of integrated luminosity from p-pbar collisions at sqrt(s) = 1.96 TeV collected using the CDF II Detector at the Fermilab Tevatron. We find the diphoton mass spectrum to be in agreement with the standard model expectation, and set limits on the cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits for the graviton mass of 230 GeV/c2 and 850 GeV/c2, at the 95% confidence level, for coupling parameters (k/M_Pl) of 0.01 and 0.1 respectively.
description: submitted to Phys. Rev. Lett
title: European Drama and Performance Studies. 2014-2, n° 3
title: Le document iconographique dans son contexte : le hors-champ des images du spectacle
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2014
Subjects: subject: Arts du spectacle
subject: Image
subject: Histoire culturelle
subject: Histoire de l'art
subject: Théâtre
subject: Photographie
subject: Iconographie

description: Contributeurs : Mickaël Bouffard, Mireille Brioude, Pascale Caemerbeke, Fabien Cavaillé, Cosime Chiarelli, Karolina Czerska, Vincent Dorothée, Alice Folco, Stéphane Hervé, Lise Jankovic, Maud Lejeune, Silvia Mei, Sandrine Siméon, Anne Surgers, Melissa Van Drie et Jean-Yves Vialleton.
Poster: Validating and Extending a Study on the Effectiveness of SSL Warnings
Creators: name: Sotirakopoulos, Andreas
name: Hawkey, Kirstie
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2010

description: We recently replicated and extended a 2009 study that investigated the effectiveness of SSL warnings. The original study was conducted at CMU by Sunshine et al. [2], and we will refer to it as the CMU study. As in the CMU study, we required participants to perform a series of tasks; and we observed their reactions to SSL warnings that were presented to them. After they completed the tasks, we asked them to complete an online questionnaire where we asked about their reasoning behind their actions during the study's tasks. We designed our experiment in such a way so as to mitigate some of the limitations of the prior work, including allowing participants to use their web browser of choice and recruiting a more representative user population. Our research is a work in progress, thus data collection and analysis are still underway. However, our preliminary analysis indicates interesting findings and differences with the findings of the CMU study. We have observed an impact of components we introduced in the study (i.e., broader population and usage of the browser of participant's choice) on the results. We plan to have completed data collection and analysis by the time the poster session will be held.
Dust Formation and He II 4686 emission in the Dense Shell of the Peculiar Type Ib Supernova 2006jc
Creators: name: Smith, Nathan
name: Foley, Ryan J.
name: Filippenko, Alexei V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present evidence for the formation of dust grains in an unusual Type Ib SN based on late-time spectra of SN 2006jc. The progenitor suffered an LBV-like outburst just 2 yr earlier, and we propose that the dust formation is a consequence of the SN blast wave overtaking that LBV-like shell. The key evidence for dust formation is (a) the appearance of a red/near-IR continuum source fit by 1600 K graphite grains, and (b) fading of the redshifted sides of He I emission lines, yielding progressively more asymmetric blueshifted lines as dust obscures receding material. This provides the strongest case yet for dust formation in any SN Ib/c. Both developments occurred between 51 and 75 d after peak, while other SNe observed to form dust did so after a few hundred days. Geometric considerations indicate that dust formed in the dense swept-up shell between the forward and reverse shocks, and not in the freely expanding SN ejecta. Rapid cooling leading to dust formation may have been aided by extremely high shell densities, as indicated by He I line ratios. The brief epoch of dust formation is accompanied by He II 4686 emission and enhanced X-ray emission. These clues suggest that the unusual dust formation in this object was not due to properties of the SN itself, but instead -- like most peculiarities of SN 2006jc -- was a consequence of the dense environment created by an LBV-like eruption 2 yr before the SN.
description: ApJ, accepted. added some discussion and 2 figures, better title, conclusions same as previous version. 12 pages, 4 color figs
Critical behavior of Tan's contact for bosonic systems with a fixed chemical potential
Creators: name: Rakhimov, Abdulla
name: Abdurakhmonov, Tolib
name: Tanatar, Bilal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The temperature dependence of Tan's contact parameter $C$ and its derivatives for spin gapped quantum magnets are investigated. We use the paradigm of Bose-Einstein condensation (BEC) to describe the low temperature properties of quasiparticles in the system known as triplons. Since the number of particles and the condensate fraction are not fixed we use the $μVT$ ensemble to calculate the thermodynamic quantities. The interactions are treated at the Hartree-Fock-Bogoliubov approximation level. We obtained the temperature dependence of $C$ and its derivative with respect to temperature and applied magnetic field both above and below $T_c$ of the phase transition from the normal phase to BEC. We have shown that $C$ is regular, while its derivatives are discontinuous at $T_c$ in accordance with Ehrenfest's classification of phase transitions. Moreover, we have found a sign change in $\partial C/\partial T$ close to the critical temperature. As to the quantum critical point, $C$ and its derivatives are regular as a function of the control parameter $r$, which induces the quantum phase transition. At very low temperatures, one may evaluate $C$ simply from the expression $C=m^2μ^2/{\bar a}^{4}$, where the only parameter effective mass of quasiparticles should be estimated. We propose a method for measuring of Tan's contact for spin gapped dimerized magnets.
description: 23 pages, 4 captioned figures
Poster: OpenIDemail Enabled Browser, Towards Fixing the Broken Web Single Sign-On Triangle
Creators: name: Sun, San-Tsai
name: Hawkey, Kirstie
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2010
Subjects: Web 2.0 controlled sharing
issnet

description: Current Web single sign-on (SSO) solutions impose a cognitive burden on web users and do not provide content-hosting and service providers (CSPs) with sufficient incentives to become relying parties (RPs). We propose a browser-based Web SSO solution that requires minimal user interaction and provide RPs with clear value propositions to motivate their adoption. Our approach builds OpenID support into web browsers, hides OpenID identifiers from users by using their existing email accounts, extends the OpenID protocol to perform authentication directly by browsers, and introduces an OpenIDAuth HTTP access authentication scheme to convey authenticated identities automatically into websites that support OpenID for authentication. Based on our approach, web users authenticate with their existing email accounts/passwords directly within a browser. With the users' consent, their identities transparently flow into OpenID-enabled websites without additional log-on steps. Our approach embeds an intuitive and consistent login experience for web users in the browser and provides RPs with instant marketable leads and the potential for gradual engagement  to motivate their adoption.
Cahiers Mérimée. 2009, n° 1
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2009
Subjects: fr

description: Mérimée était écrivain, archéologue, historien, linguiste, traducteur, antiquisant, médiéviste, hispanisant, slavisant… Pourtant, c'est le conteur qui intéressa presque exclusivement les commentateurs jusqu'au centenaire de sa mort qui, en 1970, inaugura trente ans d'indifférence. De là, une situation de table rase, propice au renouveau des études mériméennes, lequel donna lieu, en 2004, à la fondation de la Société Mérimée, puis à la création de la revue de celle-ci, les Cahiers Mérimée. Cette revue, ouverte à des orientations et disciplines diverses, a été conçue dans la visée de faire connaître l'œuvre de Mérimée dans son extraordinaire pluralité culturelle.
description: Mérimée was a writer, an archeologue, a historian, a linguist, a translator, a scholar interested in ancient history, a medievalist, a speaker of Spanish, a speaker of Slav languages. The review, Cahiers Mérimée, welcomes contributions from different fields. It aims to make Mérimée's work better known in its extraordinary cultural diversity.
Boundaries and the Casimir effect in non-commutative space-time
Creators: name: Casadio, Roberto
name: Gruppuso, Alessandro
name: Harms, Benjamin
name: Micu, Octavian
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate modifications to the scalar Casimir force between two parallel plates due to space-time non-commutativity. We devise a heuristic approach to overcome the difficulties of describing boundaries in non-commutative theories and predict that boundary corrections are of the same order as non-commutative volume corrections. Further, both corrections have the form of more conventional finite surface effects.
description: 9 pages, 2 figures
Development and validation of the signal simulation for the underground muon detector of the Pierre Auger Observatory
Creators: name: Botti, A. M.
name: Sánchez, F.
name: Roth, M.
name: Etchegoyen, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The underground muon detector of the Pierre Auger Observatory is aimed at attaining direct measurements of the muonic component of extensive air showers produced by cosmic rays with energy from $10^{16.5}$ eV up to the region of the ankle (around $10^{18.7}$ eV). It consists of two nested triangular grids of underground scintillators with 433 m, and 750 m spacings and a total of 71 positions, each with 192 scintillator strips (30 m$^2$) deployed 2.3 m underground. The light produced by impinging muons in the scintillators is propagated with optical fibers towards an array of silicon photomultipliers. In this work, we present the development, validation, and performance of an end-to-end tool for simulating the response of the underground muon detector to single-muon signals, which constitutes the basis for further simulations of the whole array. Laboratory data and simulation outcomes are found consistent, showing that with the underground muon detector we can measure single muons, with an efficiency of 99 %, up to about 1050 particles arriving at exactly the same time in 30 m$^2$ of scintillator.
description: 21 pages, 13 figures, 2 tables
Study of star formation in NGC 1084
Creators: name: Ramya, S.
name: Sahu, D. K.
name: Prabhu, T. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present UBVRI broad band, H$α$ narrow band photometry of the star forming complexes in the infra-red bright galaxy NGC 1084. Results of medium resolution spectroscopy of some of the brighter complexes are also discussed. Spectroscopic data is used to better estimate the internal reddening within the galaxy which is found to be highly variable and to calculate metallicity which is close to the solar value. Diagnostic diagram identifies the shocked regions within this galaxy. The narrow band H$α$ flux and its equivalent width are used to determine the star formation rates of the complexes and the distribution of ages. Star formation rates for a few of the complexes are found to be as high as 0.5 $M_{\odot}$/year. The star forming complexes lie in the age range 3 Myr to 6.5 Myr. U-B vs V-I colour-colour mixed population model created using the Starburst99 model colours is used to estimate the ages of the stellar populations present within these regions. Using this technique, it is found that the star formation in NGC 1084 has taken place in a series of short bursts over the last 40 Myr or so. It is proposed that the likely trigger for enhanced star formation is merger with a gas rich dwarf galaxy.
description: 9 figures and 6 tables, Accepted in MNRAS for publication
Rectification by charging -- the physics of contact-induced current asymmetry in molecular conductors
Creators: name: Miller, O. D.
name: Muralidharan, B.
name: Kapur, N.
name: Ghosh, A. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We outline the qualitatively different physics behind charging-induced current asymmetries in molecular conductors operating in the weakly interacting self-consistent field (SCF) and the strongly interacting Coulomb Blockade (CB) regimes. A conductance asymmetry arises in SCF because of the unequal mean-field potentials that shift a closed-shell conducting level differently for positive and negative bias. A very different current asymmetry arises for CB due to the unequal number of open-shell excitation channels at opposite bias voltages. The CB regime, dominated by single charge effects, typically requires a computationally demanding many-electron or Fock space description. However, our analysis of molecular Coulomb Blockade measurements reveals that many novel signatures can be explained using a {simpler} orthodox model that involves an incoherent sum of Fock space excitations and {\it{hence treats the molecule as a metallic dot or an island}}. This also reduces the complexity of the Fock space description by just including various charge configurations only, thus partially underscoring the importance of electronic structure, while retaining the essence of the single charge nature of the transport process. We finally point out, however, that the inclusion of electronic structure and hence well-resolved Fock space excitations is crucial in some notable examples.
description: 12 pages, 10 figures
Hierarchical Model-Based Approach for ConcurrentTesting of Neuromorphic Architecture
Creators: name: Kumar, Suman
name: Mishra, Abhishek
name: Das, Anup
name: kandasamy, Nagarajan
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 400902
subject: Digital electronic devices

description: Neuromorphic architectures, which implement spik-ing neural networks, provide a biologically inspired and energy-efficient approach to processing information. These systemsuse spike trains, where the timing and frequency of spikesdrive computation, offering unique advantages in dynamic andevent-driven tasks. This paper develops a concurrent testingmethodology for neuromorphic architectures, emphasizing ErrorDetection and Isolation (EDI) through a hierarchical model-based redundancy framework. Our approach uses a software-based monitoring system that compares the discrepancies be-tween the observed and predicted behavior of hardware-mappedneurons at both the system and the neuron levels. We identifykey statistical properties of spike trains that are critical forerror detection and develop computationally efficient machinelearning models to forecast these properties. By combining real-time observations with predictions of neuron behavior, our EDImethodology ensures robust fault detection and isolation. Experi-mental evaluations using an open source neuromorphic processordesign executing benchmark datasets, MNIST, FashionMNIST,and SVHN, demonstrate the effectiveness. We observe high faultcoverage with reduced computational overhead, making the EDIscheme suitable for real-time use in neuromorphic systems.
E. Schrödinger's 1931 paper "On the Reversal of the Laws of Nature" ["Über die Umkehrung der Naturgesetze",Sitzungsberichte der preussischen Akademie der Wissenschaften, physikalische mathematische Klasse, 8 N9 144-153]
Creators: name: Chetrite, Raphaël
name: Muratore-Ginanneschi, Paolo
name: Schwieger, Kay
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an English translation of Erwin Schrödinger's paper on "On the Reversal of the Laws of Nature". In this paper Schrödinger analyses the idea of time reversal of a diffusion process. Schrödinger's paper acted as a prominent source of inspiration for the works of Bernstein on reciprocal processes and of Kolmogorov on time reversal properties of Markov processes and detailed balance. The ideas outlined by Schrödinger also inspired the development of probabilistic interpretations of quantum mechanics by Fényes, Nelson and others as well as the notion of "Euclidean Quantum Mechanics" as probabilistic analogue of quantization. In the second part of the paper Schrödinger discusses the relation between time reversal and statistical laws of physics. We emphasize in our commentary the relevance of Schrödinger's intuitions for contemporary developments in statistical nano-physics.
description: Revised version. 24 pages, 2 figures. Introduction 2 pages, Translation of the german original pag. 3-10, Commentary pag 10-22