cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transport equations for superconductors in the presence of spin interaction
Creators: name: Konschelle, François
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Quasi-classical theory of superconductivity provides a powerful and yet simple description of the superconductivity phenomenology. In particular, the Eilenberger and Usadel equations provide a neat simplification of the description of the superconducting state in the presence of disorder and electromagnetic interaction. However, the modern aspects of superconductivity require a correct description of the spin interaction as well. Here, we generalize the transport equations of superconductivity in order to take into account space-time dependent electromagnetic and spin interactions on equal footing. Using a gauge-covariant Wigner transformation for the Green-Gor'kov correlation functions, we establish the correspondence between the Dyson-Gor'kov equation and the quasi-classical transport equation in the time-dependent phase-space. We give the expressions for the gauge-covariant current and charge densities (quasi-particle, electric and spin) in the transport formulation. The generalized Eilenberger and Usadel limits of the transport equation are given, too. This study is devoted to the formal derivation of the equations of motion in the electromagnetic plus spin plus particle-hole space. The studies of some specific systems are postponed to future works.
description: Accepted version. Include a discussion to a similar study by Bergeret and Tokalty: arXiv:1402.1025. More details into the manuscript
Saturation effects in forward-forward dijet production in p+Pb collisions
Creators: name: van Hameren, A.
name: Kotko, P.
name: Kutak, K.
name: Marquet, C.
name: Sapeta, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study saturation effects in the production of forward dijets in proton-lead collisions at the Large Hadron Collider, using the framework of High Energy Factorization. Such configurations, with both jets produced in the forward direction, probe the gluon density of the lead nucleus at small longitudinal momentum fraction, and also limit the phase space for emissions of additional jets. We find significant suppression of the forward dijet azimuthal correlations in proton-lead versus proton-proton collisions, which we attribute to stronger saturation of the gluon density in the nucleus than in the proton. In order to minimize model dependence of our predictions, we use two different extensions of the Balitsky-Kovchegov equation for evolution of the gluon density with sub-leading corrections.
description: 13 pages, 4 figures; v2: added figure 4, several clarifying sentences and a reference; version accepted by PRD
Sex, Macht und Fiktion in den Metamorphosen Ovids
Creators: name: Kirichenko, Alexander
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: This article analyses the eroticized power dynamics that Ovid stages in the Metamorphoses. It argues that 1) erotic desire functions in Ovid as a synonym of the desire for power; 2) that the transformations of gods can be read as a metaphor of the powerful subjecting the powerless to their will; 3) that metamorphosed humans can be regarded as notional monuments to divine power; and 4) that, by parading the self-evident fictionality of his transformation tales (including, most notably, the story of Julius Caesar’s apotheosis in Book 15), Ovid allows his readers, at least for the duration of the reading process, to experience a modicum of freedom.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Quantum anomalous Hall effects controlled by chiral domain walls
Creators: name: Cui, Qirui
name: Liang, Jinghua
name: Zhu, Yingmei
name: Yao, Xiong
name: Yang, Hongxin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the interplay between two different topological phases in condensed matter physics, the magnetic chiral domain wall (DW), and the quantum anomalous Hall (QAH) effect. We show that the chiral DW driven by Dzyaloshinskii-Moriya interaction (DMI) can divide the uniform domain into several zones where the neighboring zone possesses opposite quantized Hall conductance. The separated domain with a chiral edge state (CES) can be continuously modified by external magnetic field-induced domain expansion and thermal fluctuation, which gives rise to the reconfigurable QAH effect. More interestingly, we show that the position of CES can be tuned by spin current-driven chiral DW motion. Several two-dimensional magnets with high Curie temperatures and large topological band gaps are proposed for realizing these phenomena. Our work thus reveals the possibility of chiral DW controllable QAH effects.
Relative energy dependence of the Bethe-Salpeter amplitude in two-dimensional massless QED
Creators: name: Radozycki, Tomasz
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The exact $q\bar{q}$ Bethe-Salpeter bound state amplitude is investigated in the space of relative energy $E$ for fixed value of relative position. By means of approximate analysis it is shown to possess singularities in $E$ whenever one of the quarks reaches the energy threshold for the creation of certain number of Schwinger bosons. These results are afterwards confirmed by numerical plots.
description: REVTEX, 9 pages, 3 figures
title: Passive and robust demodulation of optical microcavity extinction: Towards truly equipment-free photonic diagnostics at the point of care
Creators: name: Bronstein, Joseph E.
Publisher: name: University of Glasgow
Year: 2023
Subjects: subject: ring resonator sensing, integrated spectrometer, equipment free detection, point of care sensing, direct write waveguides, 3d photonic integration.

description: Abstract not currently available.
Sängers Glück
Creators: name: Wöhrle, Georg
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: The German singer-songwriter Reinhard Mey, although not pretending to be a second Orpheus, nevertheless appears to be very familiar with classical myth.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Study of worm-gear-T function $g_{1T}$ with semi-inclusive DIS data
Creators: name: Horstmann, Malin
name: Schafer, Andreas
name: Vladimirov, Alexey
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The worm-gear-T function parameterizes the probability to find a longitudinally polarized quark inside a transversely polarized hadron. We extract it from data on polarized semi-inclusive deep-inelastic scattering (SIDIS) measured at COMPASS and HERMES. As a theoretical model, we use a Wandzura-Wilczek-type approximation at the next-to-leading order. We find that, at present, the data quality is insufficient to determine the worm-gear-T function faithfully. We also provide predictions for the transverse single-spin asymmetry associated with the worm-gear-T function, which could be measured in weak-boson production at STAR.
description: 12 pages, 8 figures
Modeling the nonlinear clustering in modified gravity models I: A fitting formula for matter power spectrum of f(R) gravity
Creators: name: Zhao, Gong-Bo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Based on a suite of N-body simulations of the Hu-Sawicki model of f(R) gravity with different sets of model and cosmological parameters, we develop a new fitting formula with a numeric code, MGHalofit, to calculate the nonlinear matter power spectrum P(k) for the Hu-Sawicki model. We compare the MGHalofit predictions at various redshifts (z<=1) to the f(R) simulations and find that the accuracy on P(k) is 6% at k<1 h/Mpc and 12% at 1
description: 28 AAS pages, 6 figures. Minor revision reflecting the accepted version by The Astrophysical Journal Supplement Series. The MGHalofit code is publicly available at http://icosmology.info/website/MGHalofit.html
Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernova in the LSST Era
Creators: name: Mitra, Ayan
name: Kessler, Richard
name: More, Surhud
name: Hlozek, Renee
name: Collaboration, The LSST Dark Energy Science
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We perform a rigorous cosmology analysis on simulated type Ia supernovae (SN~Ia) and evaluate the improvement from including photometric host-galaxy redshifts compared to using only the "zspec" subset with spectroscopic redshifts from the host or SN. We use the Deep Drilling Fields (~50 deg^2) from the Photometric LSST Astronomical Time-Series Classification Challenge (PLaSTiCC), in combination with a low-z sample based on Data Challenge2 (DC2). The analysis includes light curve fitting to standardize the SN brightness, a high-statistics simulation to obtain a bias-corrected Hubble diagram, a statistical+systematics covariance matrix including calibration and photo-z uncertainties, and cosmology fitting with a prior from the cosmic microwave background. Compared to using the zspec subset, including events with SN+host photo-z results in i) more precise distances for z>0.5, ii) a Hubble diagram that extends 0.3 further in redshift, and iii) a 50 % increase in the Dark Energy Task Force figure of merit (FoM) based on the w0-wa CDM model. Analyzing 25 simulated data samples, the average bias on w0 and wa is consistent with zero. The host photo-z systematic of 0.01 reduces FoM by only 2 % because i) most z<0.5 events are in the zspec subset, ii) the combined SN+host photo-z has X 2 smaller bias, and iii) the anti-correlation between fitted redshift and color self corrects distance errors. To prepare for analysing real data, the next SNIa-cosmology analysis with photo-z's should include non SN-Ia contamination and host galaxy mis-associations.
description: 13 pages, 9 figures, 7 tables. Submitted to ApJ
Die palmyrenische Königin Zenobia als Werbeikone für Seife
Creators: name: Wieber, Anja
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: This article analyses, as an example of the advertising of cosmetic products, a campaign launched by the US-American company “Johnson Soap” for their product, the facial soap “Palmolive”. Examining its ads of 1911 in which certain ancient exempla are employed, it becomes clear that the Palmyrene queen Zenobia and with her the semi-historical Semiramis and the more mythical Dido are aligned with the “1001 Nights” character Scheherazade. Since they are jointly labelled as “historically famous oriental queens” and because of the reference to Zenobia’s white skin, they can be analysed according to the fantasy of fair-skinned harem women, which evokes thoughts of all the pleasures and comforts of the luxurious Orient (including a racist subtext). To the modern female customer of 1900 (well steeped in the knowledge of those ancient characters) Zenobia and the other exempla are meant to serve as celebrities worth emulating. Above all these queens are deemed to be beautiful and experts in cosmetics, which should guarantee the effect of the product they are standing for. Such findings prove to be valid even today in an advertising concept for the Syrian-German “Zhenobya-soap”.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Spontaneously magnetized Tomonaga-Luttinger liquid in frustrated quantum antiferromagnets
Creators: name: Furuya, Shunsuke C.
name: Giamarchi, Thierry
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a theory of spontaneously magnetized Tomonaga-Luttinger liquid (SMTLL) in geometrically frustrated quasi-one-dimensional quantum magnets by taking an $S=1/2$ ferrimagnet on a union-jack lattice as an example. We show that a strong frustration leads to a spontaneous magnetization because of the ferrimagnetic nature of lattice. Due to the ferrimagnetic order, the local magnetization has an incommensurate oscillation with the position. We show that the spontaneously magnetized TLL is smoothly connected to the existence of a Nambu-Goldstone boson in the canted ferrimagnetic phase of a two-dimensional frustrated antiferromagnet.
Spin and impurity effects on flux-periodic oscillations in core-shell nanowires
Creators: name: Rosdahl, Tomas Orn
name: Manolescu, Andrei
name: Gudmundsson, Vidar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the quantum mechanical states of electrons situated on a cylindrical surface of finite axial length to model a semiconductor core-shell nanowire. We calculate the conductance in the presence of a longitudinal magnetic field by weakly coupling the cylinder to semi-infinite leads. Spin effects are accounted for through Zeeman coupling and Rashba spin-orbit interaction (SOI). Emphasis is on manifestations of flux-periodic (FP) oscillations and we show how factors such as impurities, contact geometry and spin affect them. Oscillations survive and remain periodic in the presence of impurities, noncircular contacts and SOI, while Zeeman splitting results in aperiodicity, beating patterns and additional background fluctuations. Our results are in qualitative agreement with recent magnetotransport experiments performed on GaAs/InAs core-shell nanowires. Lastly, we propose methods of data analysis for detecting the presence of Rashba SOI in core-shell systems and for estimating the electron g-factor in the shell.
description: 13 pages, 9 figures
Exact NMR simulation of protein-size spin systems using tensor train formalism
Creators: name: Savostyanov, D. V.
name: Dolgov, S. V.
name: Werner, J. M.
name: Kuprov, Ilya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Numerical Analysis (math.NA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 15A69, 81T80, 82B28

description: We introduce a new method, based on alternating optimization, for compact representation of spin Hamiltonians and solution of linear systems of algebraic equations in the tensor train format. We demonstrate the method's utility by simulating, without approximations, a 15N NMR spectrum of ubiquitin --- a protein containing several hundred interacting nuclear spins. Existing simulation algorithms for the spin system and the NMR experiment in question either require significant approximations or scale exponentially with the spin system size. We compare the proposed method to the Spinach package that uses heuristic restricted state space techniques to achieve polynomial complexity scaling. When the spin system topology is close to a linear chain (e.g. for the backbone of a protein), the tensor train representation is more compact and can be computed faster than the sparse representation using restricted state spaces.
description: Accepted for publication in Phys Rev B
Scaling our Senses: Type in Motion between Sentient Semiospheres and a Semiotics of Intensities
Creators: name: Zehle, Soenke
Publisher: name: Zenodo
Year: 2015

description: Today, Schriftfilme // Typemotion Film as aesthetic practice is as much about the movement of type as it is about the algorithmic logics that set type in motion, about the ways in which these logics affect our capacity for experience, about the consequences of a cognition no longer coupled with the constitution of the human subject but emerging from the concatenation of nonhuman beings. Writing ranges from the gestures of the human hand believed to play a central role in the constitution of conscious subjectivity to the operative languages of machinic communication whose a-signifying semiotics suggest that the space of cognition is much more expansive than the terrain of human experience. To set writing in motion is to play with the position of its constituent elements in a multiplicity of constellations. We increasingly come to understand these constellations as machinic assemblages, assemblages that structure and sustain both our own constitution as subjects and the constitution of the technical beings around us. so as we follow the movement of type in motion across more than a century of aesthetic experimentation, acts of reading scale our senses to comprehend the topologies across which our contemporary experience unfolds, less in terms of their role in processes of signification than in their role in our logics of existentialization. What follows is a machinic memorandum, a technological travelogue, technical in the sense of comprehending writing as a cultural technique, machinic in the sense of attending to ways in which contemporary changes in this technique affect our capacity for relation within machinic assemblages.
The Method of Images in Cosmology
Creators: name: Clifton, Timothy
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We apply the method of images to the exact initial data for cosmological models that contain a number of regularly arranged discrete masses. This allows us to join cosmological regions together by throats, and to construct wormholes in the initial data. These wormholes allow for the removal of the asymptotically flat "flange" regions that would otherwise exist on the far side of black holes. The method of images also provides us with a way to investigate the definition of mass is cosmology, and the cosmological consequences of the gravitational interaction energies between massive objects. We find evidence that the interaction energies within clusters of massive objects do indeed appear to contribute to the total energy budget in the cosmological regions of the space-time.
description: 31 pages, 18 figures
Bukolisches Idyll in Bethlehem
Creators: name: Feichtinger, Barbara
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: Epistula 46 stellt eine unter dem Namen von Paula und Eustochium verfasste Einladung an Marcella nach Bethlehem dar, die durchaus bei einer weiteren Öffentlichkeit positives Interesse für das Heilige Land erwecken und zu Reise und Aufenthalt motivieren soll. Das Narrativ fundiert das Pilgern freilich nicht nur durch Bibelreferenzen, sondern macht es auch durch Verweise auf antik-heidnische Praktiken und pagane Literatur „vertraut“ und – insbesondere für stadtrömische Eliten – anschlussfähig. Während die Bibelreferenzen verstärkt die spirituelle Attraktivität Palästinas als Schauplatz jahrhundertelangen Heilsgeschehens propagieren, stellen die Klassikerreferenzen, die oft mit der Expression oder Erregung von Emotionen verknüpft sind, die soziale und intellektuelle Attraktivität der Region in den Vordergrund. Rekurse auf heidnische Literatur, in der die Bildungsreisetraditionen einer kosmopolitischen Elite, die Sozialutopien aristokratischen recessus und nicht zuletzt der Genuss eines literarisch ästhetisierten otium präfiguriert sind, gestalten Palästina in besonderer Weise als Sehnsuchtsort aus. Insbesondere die Attraktivität von Bethlehem konstituiert sich somit erst in der Kombination von spirituell-intellektueller visio und emotional ansprechender Sozialutopie, in der Verbindung von spelunca Christi und bukolischem Idyll.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Magnetic-field-induced cavity protection for intersubband polaritons
Creators: name: De Bernardis, Daniele
name: Jeannin, Mathieu
name: Manceau, Jean-Michel
name: Colombelli, Raffaele
name: Tredicucci, Alessandro
name: Carusotto, Iacopo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity. The magnetic field changes the lineshape of the intersubband optical transition due to the interface roughness of the quantum well from a Lorentzian to a Gaussian one. In this regime, a novel form of magnetic-field-induced cavity protection sets in, which strongly reduces the polariton linewidth to the cavity contribution only. Implications of our results for fundamental studies of nonlinear polariton dynamics and for technological applications to polariton lasers are finally highlighted.
Common Advice for NSF GRFP Applications
Creators: name: Pearce, Logan
Publisher: name: Zenodo
Year: 2023

description: From Fall 2020- Fall 2021,I worked as a graduate consultant for the University of Arizona GRFP Application Development Program. As an undergrad at the University of Texas, I worked as a consultant at the University Writing Center for three semesters, helping folks improve their writing on all kinds of writing pieces, of which maybe half were applications for scholarships or programs. I’ve developed a toolbox of common advice and feedback throughout all these consultations. Here is a list of the most common things I say to folks when reviewing their GRFP application materials (which can be applied to other application materials as well)
Static weak dipole moments of the $τ$ lepton via renormalizable scalar leptoquark interactions
Creators: name: Bolaños, A.
name: Moyotl, A.
name: Tavares-Velasco, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The weak dipole moments of elementary fermions are calculated at the one-loop level in the framework of a renormalizable scalar leptoquark model that forbids baryon number violating processes and so is free from the strong constraints from experimental data. In this model there are two scalar leptoquarks accommodated in an $SU_L(2)\times U_Y(1)$ doublet: one of such leptoquarks is non-chiral and has electric charge of $5/3e$, whereas the other one is chiral and has electric charge $2/3e$. In particular, a non-chiral leptoquark contributes to the weak properties of an up fermion via a chirality flipping-term proportional to the mass of the virtual fermion and can also induce a non-zero weak electric dipole moment provided that the leptoquark couplings are complex. The numerical analysis is focused on the weak properties of the $τ$ lepton since they offer good prospects for their experimental study. The constraints on leptoquark couplings are briefly discussed for a non-chiral leptoquark with non diagonal couplings to the second and third fermion generations, a third-generation non-chiral leptoquark, and a third-generation chiral leptoquark. It is found that although the chirality-flipping term can enhance the weak properties of the $τ$ lepton via the top quark contribution, such an enhancement would be offset by the strong constraints on the leptoquark couplings. So, the contribution of scalar leptoquarks to the weak magnetic dipole moment of the $τ$ lepton are smaller than the standard model (SM) contributions but can be of similar size than those arising in some SM extensions. A non-chiral leptoquark can also give contributions to the weak electric dipole moment larger than the SM one but well below the experimental limit. We also discuss the case of the off-shell weak dipole moments and for completeness analyze the behavior of the $τ$ electromagnetic properties.
description: Revised version including changes in the numerical analysis and several new figures, minor typos corrected
Träume statt Theurgie
Creators: name: Seng, Helmut
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: In his work De insomniis (On Dreams), Synesios adopts a rather critical view of theurgy, resembling Porphyry’s attitude; his wording shows polemical exaggeration. His insistence on the usefulness of dream revelation for hunting might be read as a (not too serious) claim to the divine inspiration of his work κυνηγετικαί.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Are Canadian Studies a subfield of American Studies?
Creators: name: Premat, Christophe
Publisher: name: Stockholm University
Year: 2022
Subjects: Multicultural, intercultural and cross-cultural studies
Cultural studies of nation and region
Cultural studies not elsewhere classified

description: This presentation was made in a round-table discussion on the understanding of the outlines of American Studies during the annual conference of the Swedish Association for American Studies (6-7 October 2022) which took place at Örebro University. The aim was to show how Canadian Studies could be classified as an important part of American Studies.
„An Herrn Prof. A. Wlosok“
Creators: name: Kranzdorf, Anna
name: Werner, Eva
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: Im Vergleich zu anderen europäischen Ländern waren (und sind) Professorinnen in der Klassischen Philologie in Deutschland stark unterrepräsentiert. Antonie Wlosok (1930–2013) war seit 1974 bis zu ihrer Emeritierung 1998 Ordentliche Professorin für Klassische Philologie an der Johannes Gutenberg-Universität Mainz (JGU) und damit die erste oder zweite Frau, die in Deutschland einen Lehrstuhl für Klassische Philologie innehatte. Wie lässt sich das Wirken Wlosoks an der JGU insbesondere vor dem Hintergrund einer sehr männlich geprägten Wissenschaftswelt aus heutiger Perspektive beschreiben? Anhand von Zeugnissen aus dem Universitätsarchiv sowie ausgewählten Publikationen möchte dieser Aufsatz eine anekdotische Spurensuche unternehmen, die auch ein Schlaglicht auf aktuelle Debatten um Frauen in der Wissenschaft wirft.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
The Formation and Gravitational-Wave Detection of Massive Stellar Black-Hole Binaries
Creators: name: Belczynski, Krzysztof
name: Buonanno, Alessandra
name: Cantiello, Matteo
name: Fryer, Chris L.
name: Holz, Daniel E.
name: Mandel, Ilya
name: Miller, M. Coleman
name: Walczak, Marek
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: If binaries consisting of two 100 Msun black holes exist they would serve as extraordinarily powerful gravitational-wave sources, detectable to redshifts of z=2 with the advanced LIGO/Virgo ground-based detectors. Large uncertainties about the evolution of massive stars preclude definitive rate predictions for mergers of these massive black holes. We show that rates as high as hundreds of detections per year, or as low as no detections whatsoever, are both possible. It was thought that the only way to produce these massive binaries was via dynamical interactions in dense stellar systems. This view has been challenged by the recent discovery of several stars with mass above 150 Msun in the R136 region of the Large Magellanic Cloud. Current models predict that when stars of this mass leave the main sequence, their expansion is insufficient to allow common envelope evolution to efficiently reduce the orbital separation. The resulting black-hole--black-hole binary remains too wide to be able to coalesce within a Hubble time. If this assessment is correct, isolated very massive binaries do not evolve to be gravitational-wave sources. However, other formation channels exist. For example, the high multiplicity of massive stars, and their common formation in relatively dense stellar associations, opens up dynamical channels for massive black hole mergers (e.g., via Kozai cycles or repeated binary-single interactions). We identify key physical factors that shape the population of very massive black-hole--black-hole binaries. Advanced gravitational-wave detectors will provide important constraints on the formation and evolution of very massive stars.
description: ApJ accepted, extended description of modeling
Radii of spherical photon orbits around Kerr-Newman black holes
Creators: name: Chen, Ying-Xuan
name: Huang, Jia-Hui
name: Jiang, Haoxiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The spherical photon orbits around a black hole with constant radii are particular important in astrophysical observations of the black hole. In this paper, the equatorial and non-equatorial spherical photon orbits around Kerr-Newman black holes are studied. The radii of these orbits satisfy a sextic polynomial equation with three parameters, the rotation parameter $u$, charge parameter $w$ and effective inclination angle $v$. It is found that there are two polar orbits and one is inside and the other is outside the event horizon. For orbits in the equatorial plane around an extremal Kerr-Newman black hole , we find three positive solutions to the equation and provide analytical formulas for the radii of the three orbits. It is also found that a critical value of rotation parameter $u=\frac{1}{4}$ exists, above which only one retrograde orbit exists outside the event horizon and below which two orbits (one prograde and one retrograde) exist outside the event horizon. For orbits in the equatorial plane of a nonextremal Kerr-Newman black hole, there are four or two positive solutions. A critical curve in $(u,w)$-plane which separates the regions is also found. On this critical curve, the explicit formulas of three solutions are found. There always exist two equatorial photon orbits outside the event horizon in this case. For orbits between the above two special planes, there are four or two solutions to the general sextic equation. When the black hole is extremal, it is found that there is a critical inclination angle $v_{cr}$, below which only one orbit exists and above which two orbits exist outside the event horizon for a rapidly rotating black hole $u>\frac{1}{4}$. At this critical inclination angle, exact formula for the radii is also derived. Finally, a critical surface in parameter space of ($u,w,v$) is shown that separates regions with four or two solutions.
description: references added
Sterile neutrinos and right-handed currents in KATRIN
Creators: name: Barry, James
name: Heeck, Julian
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Kurie-plot experiments allow for neutrino-mass measurements based on kinematics in an almost model-independent manner. A future tritium-based KATRIN-like experiment can be sensitive to light sterile neutrinos with masses below 18 keV, which are among the prime candidates for warm dark matter. Here we consider such keV neutrinos in left--right symmetric extensions, i.e. coupled to right-handed currents, which allow for an enhanced contribution to beta decay even for small active--sterile mixing, without violating astrophysical X-ray constraints. The modified spectral shape is in principle distinguishable from the standard contribution---especially for sterile neutrino masses below 9 keV, which can lead to a distinct peak. We compare the sensitivity to constraints from the LHC and neutrinoless double beta decay.
description: 21 pages, 10 figures; minor changes, added references. Matches published version
Roms Metamorphosen im Exil
Creators: name: Heinemann, Matthias
name: Weiß, Adrian
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: In diesem Artikel werden wir die Exilschicksale, die in Ovids Exilelegien und in Lucans Bellum Civile dargestellt sind, beleuchten und kontrastieren. Während Ovids persona eine langsame Entwicklung hin zur Akzeptanz der Exilumstände durchmacht, indem Rom in Tomi neu gegründet wird, löst Lucans Pompeius sich graduell von Rom und stirbt schließlich anscheinend ohne Reue. Beide Figuren versuchen, das Konzept 'Rom' für sich neu zu besetzen. Dennoch sind sie nicht imstande, Roms langem Arm zu entkommen: Pompeius wird von einem römischen Söldner in Ägypten getötet; das neu gegründete Rom des elegischen Ich ist am Ende nur eine Replik des unumstößlich römischen exul-Schicksals.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Recension de Fabien Bièvre-Perrin & Élise Pampanay (dir.) Antiquipop. La référence à l’Antiquité dans la culture populaire contemporaine
Creators: name: Benedetti, Ginevra
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
First Look at z > 1 Bars in the Rest-Frame Near-Infrared with JWST Early CEERS Imaging
Creators: name: Guo, Yuchen
name: Jogee, Shardha
name: Finkelstein, Steven L.
name: Chen, Zilei
name: Wise, Eden
name: Bagley, Micaela B.
name: Barro, Guillermo
name: Wuyts, Stijn
name: Kocevski, Dale D.
name: Kartaltepe, Jeyhan S.
name: McGrath, Elizabeth J.
name: Ferguson, Henry C.
name: Mobasher, Bahram
name: Giavalisco, Mauro
name: Lucas, Ray A.
name: Zavala, Jorge A.
name: Lotz, Jennifer M.
name: Grogin, Norman A.
name: Huertas-Company, Marc
name: Vega-Ferrero, Jesús
name: Hathi, Nimish P.
name: Haro, Pablo Arrabal
name: Dickinson, Mark
name: Koekemoer, Anton M.
name: Papovich, Casey
name: Pirzkal, Nor
name: Yung, L. Y. Aaron
name: Backhaus, Bren E.
name: Bell, Eric F.
name: Calabrò, Antonello
name: Cleri, Nikko J.
name: Coogan, Rosemary T.
name: Cooper, M. C.
name: Costantin, Luca
name: Croton, Darren
name: Davis, Kelcey
name: de la Vega, Alexander
name: Dekel, Avishai
name: Franco, Maximilien
name: Gardner, Jonathan P.
name: Holwerda, Benne W.
name: Hutchison, Taylor A.
name: Pandya, Viraj
name: Pérez-González, Pablo G.
name: Ravindranath, Swara
name: Rose, Caitlin
name: Trump, Jonathan R.
name: Wang, Weichen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stellar bars are key drivers of secular evolution in galaxies and can be effectively studied using rest-frame near-infrared (NIR) images, which trace the underlying stellar mass and are less impacted by dust and star formation than rest-frame UV or optical images. We leverage the power of {\it{JWST}} CEERS NIRCam images to present the first quantitative identification and characterization of stellar bars at $z>1$ based on rest-frame NIR F444W images of high resolution (~1.3 kpc at z ~ 1-3). We identify stellar bars in these images using quantitative criteria based on ellipse fits. For this pilot study, we present six examples of robustly identified bars at $z>1$ with spectroscopic redshifts, including the two highest redshift bars at ~2.136 and 2.312 quantitatively identified and characterized to date. The stellar bars at $z$ ~ 1.1-2.3 presented in our study have projected semi-major axes of ~2.9-4.3 kpc and projected ellipticities of ~0.41-0.53 in the rest-frame NIR. The barred host galaxies have stellar masses ~ $ 1 \times 10^{10}$ to $2 \times 10^{11}$ $M_{\odot}$, star formation rates of ~ 21-295 $M_{\odot}$ yr$^{-1}$, and several have potential nearby companions. Our finding of bars at $z$ ~1.1-2.3 demonstrates the early onset of such instabilities and supports simulations where bars form early in massive dynamically cold disks. It also suggests that if these bars at lookback times of 8-10 Gyr survive out to present epochs, bar-driven secular processes may operate over a long time and have a significant impact on some galaxies by z ~ 0.
description: 16 pages, 5 figures. Accepted for Publication in Astrophysical Journal Letters
Review of Eran Almagor and Lisa Maurice (eds.), The Reception of Ancient Virtues and Vices in Modern Popular Culture. Beauty, Bravery, Blood and Glory
Creators: name: Heinemann, Matthias
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Gauss-Bonnet Boson Stars with a Single Killing Vector
Creators: name: Henderson, Laura J.
name: Mann, Robert B.
name: Stotyn, Sean
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct asymptotically anti-de Sitter boson stars in Einstein-Gauss-Bonnet gravity coupled to a $\frac{D-1}{2}$-tuplet of complex massless scalar fields both perturbatively and numerically in D=5,7,9,11 dimensions. These solutions possess just a single helical Killing symmetry due to the choice of scalar fields. The energy density at the centre of the star characterizes the solutions, and for each choice of the Gauss-Bonnet coupling $α$ we obtain a one parameter family of solutions. All solutions respect the first law of thermodynamics; in the numerical case to within 1 part in $10^6$. We describe the dependence of the angular velocity, mass, and angular momentum of the boson stars on $α$ and on the dimensionality. For D>5, these quantities exhibit damped oscillations about finite central values as the central energy density tends to infinity, where the amplitude of oscillation increases nonlinearly with $α$. In the limit of diverging central energy density, the Kretschmann invariant at the centre of the boson star also diverges. This is in contrast to the D=5 case, where the Kretschmann invariant diverges at a finite value of the central energy density.
description: 46 pages, 17 figures
Vorwort
Creators: name: Ambühl, Annemarie
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2020

description: Prolegomena to thersites 11, "tessellae – Birthday Issue for Christine Walde"
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 11 (2020): tessellae – Birthday Issue for Christine Walde (ed. Annemarie Ambühl)
Τραγούδι και μετάφραση: δυνατότητες και στρατηγικές
Creators: name: Κελάνδριας, Παναγιώτης
Publisher: name: Syn-Thèses
Year: 2022
Subjects: translational transformation; translational miscegenation; translational arrangement; singability; translational recompositiοn

description: Although song translation is an activity with a centuries-old history, it has only recently begun to occupy the field of translation studies and as a result, the relevant literature has not yet been enriched to the same extent as that of other fields of translation studies. Nevertheless, the dialogue that has been initiated is intense and productive. In this article, we shall deal with the translation strategies used in song translation with examples of Italian and English songs translated into Greek. After a brief historical overview of the place song translation occupies in the intercultural dialogue, we shall examine various and differing views on the feasibility of song translation and the ways of its accomplishment. Finally, we shall examine the various strategies employed by song translators when translating songs into Greek
description: Syn-Thèses, No 12 (2021): Νέες τάσεις στη μεταφρασεολογία: το ελληνικό παράδειγμα
Περικειμενικές παρεμβάσεις στα διηγήματα του Αλέξανδρου Παπαδιαμάντη προσαρμοσμένα στη Νεοελληνική για παιδιά και νέους από τον εκδοτικό οίκο «Άγκυρα»
Creators: name: Κόρκα, Νικολέττα
Publisher: name: Syn-Thèses
Year: 2022
Subjects: Ιntralingual Translation of Classic Literary Work; Literary Adaptations for Children; Paratextual Elements in Literary Books; Translations and Retranslations; Alexandros Papadiamantis Translated into Modern Greek

description: Classic literary works in the Western World have been intralingually translated and retranslated in order to meet the needs of an ever-changing society. In Greece we find numerous adaptations of 19th century works addressed to underage readers, an example being the works of Alexandros Papadiamantis, These works present valuable psychographic and an ethnographic depictions of the simple man of that time. The object of the research is the comparative study of Papadiamantis' short stories and their translation into Modern Greek for children, as found in the books by the publishing house "Agyra" and attributed by different translators. The study of synchronic and diachronic retranslations allows us to draw conclusions about the translational customs of each era. Great attention was paid to iconographic representations and paratextual data of the books, as they make up for a large part of the narration and reveal important information regarding the translation techniques. An additional goal of this research is discussing whether or not intralingual translation of Papadiamantis' short stories is legitimate. Until today theories of interlingual translation were being used to map the unexplored field of intralingual translation. To that end, the study draws methodological tools from the field of interlingual translation and, more specifically, the theory of "Descriptive Translation Studies".
description: Syn-Thèses, No 12 (2021): Νέες τάσεις στη μεταφρασεολογία: το ελληνικό παράδειγμα
Minimal Nambu-Goldstone Higgs Model in Supersymmetric SU(5) Revisited
Creators: name: Hamaguchi, Koichi
name: Hor, Shihwen
name: Nagata, Natsumi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the minimal Nambu-Goldstone (NG) Higgs supersymmetric (SUSY) SU(5) grand unified model and study its phenomenological implications. The Higgs sector of the model possesses a global SU(6) symmetry, which is spontaneously broken and results in the Higgs doublets of the minimal SUSY Standard Model (MSSM) as NG chiral superfields. Therefore, the model naturally leads to light Higgs doublets and solves the doublet-triplet splitting problem. Because of the SU(6) symmetry, the couplings of the Higgs sector are tightly restricted, and thus the model is more predictive than the minimal SUSY SU(5). We determine all the grand-unified-theory parameters via the matching conditions of the gauge coupling constants at the unification scale and calculate proton lifetime, confronting this with current experimental bounds. We discuss that this model is incompatible with the constrained MSSM, whilst it has a large viable parameter space in the high-scale SUSY scenario. The perturbativity condition on the trilinear coupling of the adjoint Higgs field imposes an upper (lower) limit on the wino (gluino) mass, implying a hierarchical mass pattern for these gauginos. Future proton-decay searches can probe a large part of the parameter space, especially if the SUSY-breaking scale is $\lesssim 100$~TeV.
description: 36 pages, 3 figures, 2 appendices
Λογοτεχνική Μετάφραση και Ηλεκτρονικά Σώματα Κειμένων: Η απόδοση της λαϊκής αργκό σε τρεις ελληνικές μεταφράσεις του μυθιστορήματος L’Assommoir του Émile Zola
Creators: name: Θεοχάρη, Μαρία
Publisher: name: Syn-Thèses
Year: 2022
Subjects: Émile Zola; L’Assommoir; literary translation; Computer-Assisted Literary Translation; slang; translation stylistics; Descriptive Translation Studies; Corpora

description: In this article we propose to study the different ways in which three Greek translators have dealt with popular slang in Émile Zola's L'Assommoir. More precisely, using tools and methods used in CALT (Computer Assisted Literary Translation) and Translational Stylistics, we will examine the translation of popular slang drawn from the semantic field of alcohol, in the speech of three characters of the novel (Coupeau, Mes-Bottes, Bec-Salé/ Boit-Sans-Soif). Starting from the observation that popular slang is not only a central stylistic element of the novel but also an essential aspect of the very identity of the text, closely linked to the literary techniques practiced by the author, we try to identify the main techniques adopted to translate popular slang into Greek. Our main aim is to distinguish the strategies of the translators (in terms of their position on the domestication-exoticization continuum proposed by Venuti) and to put the translations in perspective with respect to the socio-cultural conditions and the initial norms (appropriateness or acceptability according to Toury) that govern the act of translating in each given period.
description: Syn-Thèses, No 12 (2021): Νέες τάσεις στη μεταφρασεολογία: το ελληνικό παράδειγμα