cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metastability of Kolmogorov flows and inviscid damping of shear flows
Creators: name: Lin, Zhiwu
name: Xu, Ming
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: First, we consider Kolmogorov flow (a shear flow with a sinusoidal velocity profile) for 2D Navier-Stokes equation on a torus. Such flows, also called bar states, have been numerically observed as one type of metastable states in the study of 2D turbulence. For both rectangular and square tori, we prove that the non-shear part of perturbations near Kolmogorov flow decays in a time scale much shorter than the viscous time scale. The results are obtained for both the linearized NS equations with any initial vorticity in L^2, and the nonlinear NS equation with initial L^2 norm of vorticity of the size of viscosity. In the proof, we use the Hamiltonian structure of the linearized Euler equation and RAGE theorem to control the low frequency part of the perturbation. Second, we consider two classes of shear flows for which a sharp stability criterion is known. We show the inviscid damping in a time average sense for non-shear perturbations with initial vorticity in L^2. For the unstable case, the inviscid damping is proved on the center space. Our proof again uses the Hamiltonian structure of the linearized Euler equation and an instability index theory recently developed by Lin and Zeng for Hamiltonian PDEs.
title: baxian_guohai
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Observation of macroscopic valley-polarized monolayer exciton-polaritons at room temperature
Creators: name: Lundt, N.
name: Stoll, S.
name: Nagler, P.
name: Nalitov, A.
name: Klembt, S.
name: Betzold, S.
name: Goddard, J. W.
name: Frieling, E.
name: Kavokin, A. V.
name: Schüller, C.
name: Korn, T.
name: Höfling, S.
name: Schneider, C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this letter, we address the chiral properties of valley exciton-polaritons in a monolayer of WS2 in the regime of strong light-matter coupling with a Tamm-Plasmon resonance. We observe that the valley polarization, which manifests in the circular polarization of the emitted photoluminescence, is strongly enhanced in comparison to bare WS2 monolayers, and can even be observed under non-resonant excitation at ambient conditions. We study the relaxation and decay dynamics of exciton-polaritons in our device, and present a microscopic model to explain the wave vector-dependent valley depolarization as an interplay of bright and dark states, electron-hole exchange interaction and the linear polarization splitting inherent to the microcavity.
Finite temperature dynamics of the Mott insulating Hubbard chain
Creators: name: Nocera, Alberto
name: Essler, Fabian H. L.
name: Feiguin, Adrian E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the dynamical response of the half-filled one-dimensional(1d) Hubbard model for a range of interaction strengths $U$ and temperatures $T$ by a combination of numerical and analytical techniques. Using time-dependent density matrix renormalization group (tDMRG) computations we find that the single-particle spectral function undergoes a crossover to a spin-incoherent Luttinger liquid regime at temperatures $T \sim J=4t^2/U$ for sufficiently large $U > 4t$. At smaller values of $U$ and elevated temperatures the spectral function is found to exhibit two thermally broadened bands of excitations, reminiscent of what is found in the Hubbard-I approximation. The dynamical density-density response function is shown to exhibit a finite temperature resonance at low frequencies inside the Mott gap, with a physical origin similar to the Villain mode in gapped quantum spin chains. We complement our numerical computations by developing an analytic strong-coupling approach to the low-temperature dynamics in the spin-incoherent regime.
description: 10 pages, 7 Figs
title: pGAjmAt
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
On the Absorption of X-rays in the Interstellar Medium
Creators: name: Wilms, J.
name: Allen, A.
name: McCray, R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an improved model for the absorption of X-rays in the ISM intended for use with data from future X-ray missions with larger effective areas and increased energy resolution such as Chandra and XMM, in the energy range above 100eV. Compared to previous work, our formalism includes recent updates to the photoionization cross section and revised abundances of the interstellar medium, as well as a treatment of interstellar grains and the H2molecule. We review the theoretical and observational motivations behind these updates and provide a subroutine for the X-ray spectral analysis program XSPEC that incorporates our model.
description: ApJ, in press, for associated software see http://astro.uni-tuebingen.de/nh/
Is the largest aqueous gold cluster a superatom complex? Electronic structure & optical response of the structurally determined Au146(pMBA)57
Creators: name: López-Lozano, Xóchitl
name: Plascencia-Villa, Germán
name: Calero, Guillermo
name: Whetten, Robert L.
name: Weissker, Hans-Christian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The new water-soluble gold cluster Au146(pMBA)57, the structure of which has been recently determined at sub-atomic resolution by Vergara et al. [1], is the largest aqueous gold cluster ever structurally determined and likewise the smallest cluster with a stacking fault. The core presents a twinned truncated octahedron, while additional peripheral gold atoms follow a C2 rotational symmetry. According to the usual counting rules of the superatom complex (SAC) model, the compound attains a number of 92 SAC electrons if the overall net charge is 3- (three additional electrons). As this is the number of electrons required for a major shell closing, the question arises if Au146(pMBA)57 should be regarded as a superatom complex. Starting from the experimental coordinates we have analyzed the structure using density-functional theory. The optimized (relaxed) structure retains all the connectivity of the experimental coordinates, while removing much of its irregularities in interatomic distances, thereby enhancing the C2-symmetry feature. Analyzing the angular-momentum projected states, we show that, despite a small gap, the electronic structure does not exhibit SAC model character. In addition, optical absorption spectra are found to be relatively smooth compared to the example of the Au144(SR)60 cluster. The Au146(SR)57 cluster does not derive its stability from SAC character; it cannot be considered a superatom complex.
Description of the observed types of attachment microstructures from Versatility of Turing patterns potentiates rapid evolution in tarsal attachment microstructures of stick and leaf insects (Phasmatodea)
Creators: name: Büscher, Thies H.
name: Kryuchkov, Mikhail
name: Katanaev, Vladimir L.
name: Gorb, Stanislav N.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: In its evolution, the diverse group of stick and leaf insects (Phasmatodea) has undergone a rapid radiation. These insects evolved specialized structures to adhere to different surfaces typical for their specific ecological environments. The cuticle of their tarsal attachment pads (euplantulae) is known to possess a high diversity of attachment microstructures (AMS) which are suggested to reflect ecological specializations of different groups within phasmids. However, the origin of these microstructures and their developmental background remain largely unknown. Here, based on the detailed scanning electron microscopy study of pad surfaces, we present a theoretical approach to mathematically model an outstanding diversity of phasmid AMS using the reaction–diffusion model by Alan Turing. In general, this model explains pattern formation in nature. For the first time, we were able to identify eight principal patterns and simulate the transitions among these. In addition, intermediate transitional patterns were predicted by the model. The ease of transformation suggests a high adaptability of the microstructures that might explain the rapid evolution of pad characters. We additionally discuss the functional morphology of the different microstructures and their assumed advantages in the context of the ecological background of species.
title: xifangping
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Transverse load optimisation in Nb3Sn CICC design; influence of cabling, void fraction and strand stiffness
Creators: name: Nijhuis, A.
name: Ilyin, Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have developed a model that describes the transverse load degradation in Nb3Sn CICCs, based on strand and cable properties, and that predicts how such degradation can be prevented. We present the model for Transverse Electro-Magnetic Load Optimisation (TEMLOP) and report the first results of computations for ITER type of conductors, based on the measured properties of the internal tin strand used for the Toroidal Field Model Coil (TFMC). The most important conclusion of the model computations is that the problem of the severe degradation of large CICCs can be drastically and straightforwardly solved by increasing the pitch length of subsequent cabling stages. It is for the first time that an increase of the pitches is proposed and no experimental data are available to confirm this outcome of the TEMLOP model. Larger pitch lengths will result in a more homogeneous distribution of the stresses and strains in the cable by significantly moderating the local peak stresses associated with the intermediate-length twist pitches. The twist pitch scheme of the present conductor layout turns out to be unfortunately close to a worst case scenario. It is possible to improve the ITER conductor design or the operation margin, by mainly a change in the cabling scheme. We also find that a lower cable void fraction and larger strand stiffness add to a further improvement of the conductor performance.
Taxon list from Versatility of Turing patterns potentiates rapid evolution in tarsal attachment microstructures of stick and leaf insects (Phasmatodea)
Creators: name: Büscher, Thies H.
name: Kryuchkov, Mikhail
name: Katanaev, Vladimir L.
name: Gorb, Stanislav N.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Table S3. List of phasmatodean species examined in this study. The distribution and the current taxonomical placement are stated, as well as the pattern type of attachment microstructures on the euplantulae determined by the modelling.
Quantum Dynamical Model for Wave Function Reduction in Classical and Macroscopic Limits
Creators: name: Sun, Chang-Pu
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this papper, a quantum dynamical model describing the quantum measurement process is presented as an extensive generalization of the Coleman-Hepp model. In both the classical limit with very large quantum number and macroscopic limit with very large particle number in measuring instrument, this model generally realizes the wave packet collapse in quantum measurement as a consequence of the Schrodinger time evolution in either the exactly-solvable case or the non-(exactly-)solvable case. For the latter, its quasi-adiabatic case is explicitly analysed by making use of the high-order adiabatic approximation method and then manifests the wave packet collapse as well as the exactly-solvable case. By highlighting these analysis, it is finally found that an essence of the dynamical model of wave packet collapse is the factorization of the Schrodinger evolution other than the exact solvability. So many dynamical models including the well-known ones before, which are exactly-solvable or not, can be shown only to be the concrete realizations of this factorizability
description: ITP.SB-93-14,19 pages
Detailed micrographs of attachment microstructures from Versatility of Turing patterns potentiates rapid evolution in tarsal attachment microstructures of stick and leaf insects (Phasmatodea)
Creators: name: Büscher, Thies H.
name: Kryuchkov, Mikhail
name: Katanaev, Vladimir L.
name: Gorb, Stanislav N.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: High magnification SEM micrographs of three species representing the pattern types smooth, maze and nubby.
Reconstruction of the three mechanical material constants of a lossy fluid-like cylinder from low-frequency scattered acoustic fields
Creators: name: Scotti, Thierry
name: Wirgin, Armand
Publisher: name: arXiv
Year: 2003
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The inverse medium problem for a circular cylindrical domain is studied using low-frequency acoustic waves as the probe radiation. It is shown that to second order in $k_{0}a$ ($k_{0}$ the wavenumber in the host medium, $a$ the radius of the cylinder), only the first three terms (i.e., of orders 0, -1 and +1) in the partial wave representation of the scattered field are non-vanishing, and the material parameters enter into these terms in explicit manner. Moreover, the zeroth-order term contains only two of the unknown material constants (i.e., the real and imaginary parts of complex compressibility of the cylinder $κ_{1}$) whereas the $\pm 1$ order terms contain the other material constant (i.e., the density of the cylinder $ρ_{1}$). A method, relying on the knowledge of the totality of the far-zone scattered field and resulting in explicit expressions for $ρ_{1}$ and $κ_{1}$, is devised and shown to give highly-accurate estimates of these quantities even for frequencies such that $k_{0}a$ is as large as 0.1.
description: submitted to C.R.Acad.Sci
The geography of references in elite articles: What countries contribute to the archives of knowledge
Creators: name: Bornmann, Lutz
name: Wagner, Caroline
name: Leydesdorff, Loet
Publisher: name: arXiv
Year: 2017
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: This study is intended to find an answer for the question on which national "shoulders" the worldwide top-level research stands. Traditionally, national scientific standings are evaluated in terms of the number of citations to their papers. We raise a different question: instead of analyzing the citations to the countries' articles (the forward view), we examine referenced publications from specific countries cited in the most elite publications (the backward-citing-view). "Elite publications" are operationalized as the top-1% most-highly cited articles. Using the articles published during the years 2004 to 2013, we examine the research referenced in these works. Our results confirm the well-known fact that China has emerged to become a major player in science. However, China still belongs to the low contributors when countries are ranked as contributors to the cited references in top-1% articles. Using this perspective, the results do not point to a decreasing trend for the USA; in fact, the USA exceeds expectations (compared to its publication share) in terms of contributions to cited references in the top-1% articles. Switzerland, Sweden, and the Netherlands also are shown at the top of the list. However, the results for Germany are lower than statistically expected.
Accelerated Electrons in Cassiopeia A: An Explanation for the Hard X-ray Tail
Creators: name: Laming, J. Martin
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a model for the hard X-ray (> 10 keV) emission observed from the supernova remnant Cas A. Lower hybrid waves are generated in strong (mG) magnetic fields, generally believed to reside in this remnant, by shocks reflected from density inhomogeneities. These then accelerate electrons to energies of several tens of keV. Around 4% of the x-ray emitting plasma electrons need to be in this accelerated distribution, which extends up to electron velocities of order the electron Alfven speed, and is directled along magnetic field lines. Bremsstrahlung from these electrons produces the observed hard x-ray emission. Such waves and accelerated electrons have been observed in situ at Comet Halley, and we discuss the viability of the extrapolation from this case to the parameters relevant to Cas A.
description: 20 pages, 3 figures, aasTeX502, accepted in ApJ
title: tWmtW
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
An Optically Faint Quasar Survey at z~5 in the CFHTLS Wide Field: Estimates of the Black Hole Masses and Eddington Ratios
Creators: name: Ikeda, H.
name: Nagao, T.
name: Matsuoka, K.
name: Kawakatu, N.
name: Kajisawa, M.
name: Akiyama, M.
name: Miyaji, T.
name: Morokuma, T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the result of our spectroscopic follow-up observation for faint quasar candidates at z~5 in a part of the Canada-France-Hawaii Telescope Legacy Survey wide field. We select nine photometric candidates and identify three z~5 faint quasars, one z~4 faint quasar, and a late-type star. Since two faint quasar spectra show Civ emission line without suffering from a heavy atmospheric absorption, we estimate the black hole mass (M$_{BH}$) and Eddington ratio (L/L$_{Edd}$) of them. The inferred log M$_{BH}$ are 9.04+/-0.14 and 8.53+/-0.20, respectively. In addition, the inferred log (L/L$_{Edd}$) are -1.00+/-0.15 and -0.42+/-0.22, respectively. If we adopt that L/L$_{Edd}$= constant or $\propto$ (1+z)^2, the seed black hole masses (M$_{seed}$) of our z~5 faint quasars are expected to be >10^5 M$_\odot$ in most cases. We also compare the observational results with a mass accretion model where angular momentum is lost due to supernova explosions (Kawakatu & Wada 2008). Accordingly, M$_{BH}$ of the z~5 faint quasars in our sample can be explained even if M$_{seed}$ is ~10^3M$_\odot$. Since z~6 luminous qusars and our z~5 faint quasars are not on the same evolutionary track, z~6 luminous quasars and our z~5 quasars are not the same populations but different populations, due to the difference of a period of the mass supply from host galaxies. Furthermore, we confirm that one can explain M$_{BH}$ of z~6 luminous quasars and our z~5 faint quasars even if their seed black holes of them are formed at z~7.
description: 16 pages, 8 figures, Accepted for publication in The Astrophysical Journal
title: Memoria de actividades 2002-2003
title: Activity report 2002-2003
titleType: AlternativeTitle
Creators: name: CSIC-UZA-Instituto De Ciencia De Materiales De Aragón (ICMA)
Publisher: name: CSIC-UZA - Instituto de Ciencia de Materiales de Aragón (ICMA)
Year: 2003

description: El Instituto de Ciencia de Materiales de Aragón (ICMA) fue creado el 24 de mayo de 1985, por un Acuerdo Específico entre el Consejo Superior de Investigaciones Científicas (CSIC) y la Universidad de Zaragoza (UZ), como Centro Mixto dependiente de las dos instituciones, acogiéndose a uno de los tipos de colaboración establecidos por el Acuerdo Marco entre el Consejo Superior de Investigaciones Científicas y la Universidad de Zaragoza. El ICMA desarrolla sus tareas de investigación en las áreas de Ciencia y Tecnología de Materiales (MAT) y Ciencia y Tecnologías Químicas (QUI) y engloba a miembros tanto del CSIC como de la UZ, que se encuadran en Departamentos de Investigación, repartidos entre sus dos sedes: la Facultad de Ciencias, sita en el campus Plaza San Francisco, y el Centro Politécnico Superior, ubicado en el campus Río Ebro, ambos en Zaragoza. Se presenta en esta memoria la actividad del Instituto durante los años 2002 y 2003 en forma bilingüe, castellano e inglés, para facilitar su diseminación entre colegas de la comunidad científica internacional.
Influence of the Ground-State Topology on the Domain-Wall Energy in the Edwards-Anderson +/- J Spin Glass Model
Creators: name: Roma, F.
name: Risau-Gusman, S.
name: Ramirez-Pastor, A. J.
name: Nieto, F.
name: Vogel, E. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the phase stability of the Edwards-Anderson spin-glass model by analyzing the domain-wall energy. For the bimodal distribution of bonds, a topological analysis of the ground state allows us to separate the system into two regions: the backbone and its environment. We find that the distributions of domain-wall energies are very different in these two regions for the three dimensional (3D) case. Although the backbone turns out to have a very high phase stability, the combined effect of these excitations and correlations produces the low global stability displayed by the system as a whole. On the other hand, in two dimensions (2D) we find that the surface of the excitations avoids the backbone. Our results confirm that a narrow connection exists between the phase stability of the system and the internal structure of the ground-state. In addition, for both 3D and 2D we are able to obtain the fractal dimension of the domain wall by direct means.
description: 4 pages, 3 figures. Accepted for publication in Rapid Communications of Phys. Rev. B
Large $N$ phase transitions and the fate of small Schwarzschild-AdS black holes
Creators: name: Yaffe, Laurence G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Sufficiently small Schwarzschild-AdS black holes in asymptotically global AdS$_5 \times S^5$ spacetime are known to become dynamically unstable toward deformation of the internal $S^5$ geometry. The resulting evolution of such an unstable black hole is related, via holography, to the dynamics of supercooled plasma which has reached the limit of metastability in maximally supersymmetric large-$N$ Yang-Mills theory on $R \times S^3$. Puzzles related to the resulting dynamical evolution are discussed, with a key issue involving differences between the large $N$ limit in the dual field theory and typical large volume thermodynamic limits.
description: 27 pgs
Trapping and Steering on Lattice Strings: Virtual Slow Waves, Directional and Non-propagating Excitations
Creators: name: Essl, Georg
Publisher: name: arXiv
Year: 2003
Subjects: subject: Classical Physics (physics.class-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Using a lattice string model, a number of peculiar excitation situations related to non-propagating excitations and non-radiating sources are demonstrated. External fields can be used to trap excitations locally but also lead to the ability to steer such excitations dynamically as long as the steering is slower than the field's wave propagation. I present explicit constructions of a number of examples, including temporally limited non-propagating excitations, directional excitation and virtually slowed propagation. Using these dynamical lattice constructions I demonstrate that neither persistent temporal oscillation nor static localization are necessary for non-propagating excitations to occur.
description: 16 pages, 5 figures, RevTex4, references added, figure captions improved, to appear in Physical Review E
title: kAJar
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
La Paluelle, Roger-André de, Résolutions de plusieurs cas de conscience et des plus importantes questions du barreau touchant les droits et devoirs reciproques des seigneurs et des vassaux, des patrons et des curez, tant pour le fore exterieur ; que pour celui de conscience, Caen, Pierre François Doublet, 1710
Creators: name: de La Paluelle, Roger-André
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Source: https://books.google.fr/books?id=r8HPjicT2E8C&printsec=frontcover&dq=LA+PALUELLE,+Roger-Andr%C3%A9&hl=fr&sa=X&ved=0ahUKEwjg3r6p58bjAhUPzhoKHXOvAvwQ6AEIKDAA#v=onepage&q&f=false
description: Relation: vignette : https://www.nakala.fr/data/11280/4f4006b3
Complexity and capacity bounds for quantum channels
Creators: name: Levene, Rupert H.
name: Paulsen, Vern I.
name: Todorov, Ivan G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 81P45

description: We generalise some well-known graph parameters to operator systems by considering their underlying quantum channels. In particular, we introduce the quantum complexity as the dimension of the smallest co-domain Hilbert space a quantum channel requires to realise a given operator system as its non-commutative confusability graph. We describe quantum complexity as a generalised minimum semidefinite rank and, in the case of a graph operator system, as a quantum intersection number. The quantum complexity and a closely related quantum version of orthogonal rank turn out to be upper bounds for the Shannon zero-error capacity of a quantum channel, and we construct examples for which these bounds beat the best previously known general upper bound for the capacity of quantum channels, given by the quantum Lovász theta number.
Memorias 1967
Creators: name: Estación Experimental De Aula Dei (EEAD-CSIC)
name: Centro De Desarrollo Agrario Del Ebro (CDAE)
Publisher: name: CSIC - Estación Experimental de Aula Dei (EEAD)
Year: 1967
Subjects: Actividades científicas
EEAD-CSIC

description: [191] Pags.
title: ADCO, Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Cart. 23 (G 127), 310 folios, f. 00002
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2011
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Archives départementales de la Côte-d'Or, Cart. 23 (G 127), 310 folios, f. 00002, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Archives départementales de la Côte-d'Or, Cart. 23 (G 127), 310 folios, f. 00002, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Neutrino CP violation and sign of baryon asymmetry in the minimal seesaw model
Creators: name: Shimizu, Yusuke
name: Takagi, Kenta
name: Tanimoto, Morimitsu
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the correlation between the CP violating Dirac phase of the lepton mixing matrix and the cosmological baryon asymmetry based on the leptogenesis in the minimal seesaw model with two right-handed Majorana neutrinos and the trimaximal mixing for neutrino flavors. The sign of the CP violating Dirac phase at low energy is fixed by the observed cosmological baryon asymmetry since there is only one phase parameter in the model. According to the recent T2K and NO$ν$A data of the CP violation, the Dirac neutrino mass matrix of our model is fixed only for the normal hierarchy of neutrino masses.
description: 19 pages, 4 figures, 1 table. 1 reference is added in this version. arXiv admin note: text overlap with arXiv:1709.02136
Finiteness and Unitarity of Lorentz-Covariant Green-Schwarz Superstring Amplitudes
Creators: name: Berkovits, Nathan
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In two recent papers, a new method was developed for calculating ten-dimensional superstring amplitudes with an arbitrary number of loops and external massless particles, and for expressing them in manifestly Lorentz-invariant form. By explicitly checking for divergences when the Riemann surface degenerates, these amplitudes are proven to be finite. By choosing light-cone moduli for the surface and comparing with the light-cone Green-Schwarz formalism, these amplitudes are proven to be unitary.
description: 16 pages plain Tex; a revision is made to the second paragraph and footnote on page 3
title: Stellungnahme zur Institutionellen Reakkreditierung der Evangelischen Hochschule Ludwigsburg
Creators: name: German Science And Humanities Council
Publisher: name: German Science and Humanities Council
Year: 2024
Subjects: Akkreditierung
Hochschulförmigkeit
Qualitätssicherung
Private Hochschulen
Hochschulen
Akkreditierungszeitraum 10 Jahre
kirchliche Hochschulen

description: Die Evangelische Hochschule (EH) Ludwigsburg wird für zehn Jahre reakkreditiert. Sie ist durch die 1999 erfolgte Fusion zweier evangelischer Fachhochschulen in Ludwigsburg und in Reutlingen hervorgegangen, und ist unbefristet staatlich anerkannt. Sie bietet ihren rd. 1.300 Studierenden Bachelor- und Masterstudiengänge in den Bereichen Soziale Arbeit, Gesundheit, Erziehung und Diakonie an.
The Solar Helium Abundance in the Outer Corona Determined from Observations with SUMER/SOHO
Creators: name: Laming, J. M.
name: Feldman, U.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: At altitudes of about 1.05 solar radii or more, the corona above quiet solar regions becomes essentially isothermal. This obviates many of the difficulties associated with the inverse problem of determining emission measure distributions, and allows for fairly straightforward relative element abundance measurements. We present new values for the He abundance. The first is based on a reanalysis of the He/O ratio studied previously using data acquired by SUMER. A more thorough evaluation of the atomic physics for He II, including a detailed treatment of radiative recombination, increases the predicted emission in the He II Balmer series compared to earlier analyses. We use a recently revised value of the O abundance to derive an He/H abundance ratio of 0.038, (mass fraction, Y=0.13), with an error of ~17% coming mainly from the O abundance uncertainty. We demonstrate that this result may be affected by gravitational settling of O relative to He. We also derive an abundance for He by direct comparison to emission lines of the H I Lyman series, with the result He/H =0.052 +/- 0.005 (Y=0.17), a value similar to He abundances determined in the slow speed solar wind.
description: 16 pages, 2 figures, accepted by ApJ
title: phaRrgot
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Electrical Characterization of PbZr0.4Ti0.6O3 Capacitors
Creators: name: Zubko, P.
name: Jung, D. J.
name: Scott, J. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have conducted a careful study of current-voltage (I-V) characteristics in fully integrated commercial PbZr0.4Ti0.6O3 thin film capacitors with Pt bottom and Ir/IrO2 top electrodes. Highly reproducible steady state I-V were obtained at various temperatures over two decades in voltage from current-time data and analyzed in terms of several common transport models including space charge limited conduction, Schottky thermionic emission under full and partial depletion and Poole-Frenkel conduction, showing that the later is the most plausible leakage mechanism in these high quality films. In addition, ferroelectric hysteresis loops and capacitance-voltage data were obtained over a large range of temperatures and discussed in terms of a modified Landau-Ginzburg-Devonshire theory accounting for space charge effects.
description: 17 pages, 7 figures
Ultraviolet Stable Fixed Point and Scaling Relations in 2+$ε$ Dimensional Quantum Gravity
Creators: name: Kawai, Hikaru
name: Kitazawa, Yoshihisa
name: Ninomiya, Masao
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate a renormalizable quantum gravity in $2+ε$ dimensions by generalizing the nonlinear sigma model approach to string theory. We find that the theory possesses the ultraviolet stable fixed point if the central charge of the matter sector is in the range $0~
description: 37 pages and 1 figure, UT-636, TIT/HEP-217 and YITP/U-93-07 (a sentence to print out the figure is added, which was missing in the previous version.)
Memoria 1971
Creators: name: Presidencia Del CSIC
Publisher: name: Consejo Superior de Investigaciones Científicas (España)
Year: 1971
Subjects: Consejo Superior de Investigaciones Científicas
Memorias
CSIC

description: Como en años anteriores, la redacción de la presente Memoria se ha realizado bajo un criterio de sobriedad informativa ; en numerosos apartados se limita a la enumeración de la amplia gama de realizaciones de los distintos Departamentos del Consejo Superior de Investigaciones Científicas . Pero es fácil comprender que detrás de cada línea de investigación hay una dedicación y un trabajo que resalta por encima del escueto dato científico recogido. La Memoria es, pues, un resumen de la organización y actividades de los distintos Patronatos de la Institución. Contemplada en su totalidad, un fiel exponente de la amplia labor realizada en cada una de las grandes ramas que componen el abanico de la investigación científica contemporánea. Se indican en ella los hechos más destacados ocurridos durante el año, las cifras de ingresos y gastos, las relaciones internacionales, las líneas de investigación cultivadas, publicaciones, tesis doctorales, un resumen numérico de actividades y la relación de los Consejeros de Honor, de Número y Adjuntos de cada Patronato. Se aprecia inmediatamente, a la vista de la totalidad de los datos recogidos, que aparte de la labor de investigación personal, una de las labores más destacadas en la actividad de los Patronatos es la de equipo. Y ello por la necesidad de afrontar empresas que por su específica significación desplazan la labor individual. Es de destacar también la amplia gama de relaciones que unen a nuestros Centros con los de otros países. En tal sentido, está establecido un intercambio y una colaboración científica con irradiaciones cada vez mayores hacia todas las latitudes del mundo. El más amplio capítulo de la Memoria recoge las tareas de investigación propia. En cantidad y calidad son los resultados de todo un año, un baremo eficaz para entender en toda su amplitud e importancia el nivel alcanzado por las unidades investigadoras del Consejo. Es de destacar que esta amplia expansión no se encuentra limitada a determinadas ciudades. Por el contrario, se irradia por todo el ámbito de nuestra geografía. Al mismo tiempo, cobra especial significación la colaboración fecunda que mantiene el Consejo con las Universidades y demás centros de enseñanza superior. En ambos polos se ha conseguido una muy eficaz descentralización investigadora y, por otra parte, una convergencia de finalidades y esfuerzos.
title: san_ge_heshang
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Weak three-dimensional mediators of two-dimensional triplet pairing
Creators: name: Kelly, Shane
name: Tsai, S. -W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Recent experiments demonstrate the ability to construct cold atom mixtures with species selective optical lattices. This allows for the possibility of a mixed-dimension system, where one fermionic atomic species is confined to a two dimensional lattice, while another species is confined to a three dimensional lattice that contains the two-dimensional one. We show that by tuning the density of an arbitrary number of three-dimensional atomic species, we can engineer an arbitrary, rotationally-symmetric, density-density, effective interaction for the two-dimensional particles. This possibility allows for an effective interaction that favours triplet pairing for two-dimensional, $SU(2)$ symmetric particles. Using a functional renormalization-group analysis for the two-dimensional particles, we derive and numerically confirm that the critical temperature for triplet pairing depends exponentially on the effective interaction strength. We then analyse how the stability of this phase is affected by the particle densities and the fine tuning of interaction parameters. We conclude by briefly discussing experimental considerations and the potential to study triplet pairing physics, including Majorana fermions and spin textures, with cold atoms on optical lattices.
description: 9 pages, 7 figures
The Chemical Compositions of the SRd Variable Stars. III. KK Aquilae, AG Aurigae, Z Aurigae, W Leo Minoris, and WW Tauri
Creators: name: Giridhar, S.
name: Lambert, D. L.
name: Gonzalez, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Chemical compositions are derived from high-resolution spectra for five field SRd variables. These supergiants not previously analysed are shown to be metal-poor: KK Aql with [Fe/H] = -1.2, AG Aur with [Fe/H] = -1.8, Z Aur with [Fe/H] = -1.4, W LMi with [Fe/H] = -1.1, and WW Tau with [Fe/H] = -1.1. Their compositions are, except for two anomalies, identical to within the measurement errors with the compositions of subdwarfs, subgiants, and less evolved giants of the same [Fe/H]. One anomaly is an s-process enrichment for KK Aql, the first such enrichment reported for a SRd variable. The second and more remarkable anomaly is a strong lithium enrichment for W LMi, also a first for field SRds. The Li I 6707 A profile is not simply that of a photospheric line but includes strong absorption from red-shifted gas, suggesting, perhaps, that lithium enrichment results from accretion of Li-rich gas. This potential clue to lithium enrichment is discussed in light of various proposals for lithium synthesis in evolved stars.
description: 18 pages of text, 8 tables, 2 figures. Accepted for publication in PASP
Surface treated Pteris vittata L. pinnae powder used as an efficient biosorbent of Pb(II), Cd(II), and Cr(VI) from aqueous solution
Creators: name: Smruthi G. Prabhu
name: Govindan Srinikethan
name: Smitha Hegde
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Biosorption is a surface-dependent phenomenon. Surface modifications by chemical treatment methods could either improve or reduce the biosorption capacity of potential biosorbents. In the present work, pristine Pteris vittata L. pinnae (PPV) powder was treated separately with sodium hydroxide (NaOH), calcium chloride (CaCl2), and nitric acid (HNO3). The pristine and treated biosorbents were used to assess the biosorption of Pb(II), Cd(II), and Cr(VI) as a function of pH. Kinetics and adsorption isotherms were studied. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy and scanning electron microscope combined with energy dispersive x-ray (SEM-EDX) spectroscopic techniques were used to characterize the biosorbents before and after chemical treatments. The possible functional groups contributing to the metal sorption were identified. Results revealed favorable biosorption of Pb(II), Cd(II), and Cr(VI) described by pseudo-second order kinetics. NaOH-treated P. vittata (NPV) showed higher biosorption capacity for Pb(II) and Cd(II) compared to that of PPV. ATR-FTIR studies indicated that -OH, -COOH, and -NH2 groups were mainly involved in Cr(VI) and -OH in Pb(II) and Cd(II) biosorption. The enhanced efficiency of NPV and CaCl2 treated P. vittata (CPV) in the uptake of Pb(II) and Cd(II) compared to PPV can be associated with their altered physicochemical characters.
title: renshen_wawa
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Quantifying Departures from Equilibrium with the Spherical Jeans Equation
Creators: name: Evslin, Jarah
name: Del Popolo, Antonino
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Proper motions of collisionless pointlike objects in a spherically symmetric system, for example stars in a galaxy, can be used to test whether that system is in equilibrium, with no assumptions regarding isotropy. In particular, the fourth order spherical Jeans equation yields expressions for two observable quantities characterizing the departure from equilibrium, both of which can be expressed in terms of time derivatives of first and third moments of the velocities. As illustrations, we compute these quantities for tracer distributions drawn from an exact equilibrium configuration and also from near equilibrium configurations generated using the N-body code GALIC.
description: 18 pages, 7 figures
The Coherence Field in the Field Perturbation Theory of Superconductivity
Creators: name: Dayan, Moshe
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We re-examine the Nambu-Gorkov perturbation theory of superconductivity on the basis of the Bogoliubov-Valatin quasi-particles. We show that two different fields (and two additional analogous fields) may be constructed, and that the Nambu field is only one of them. For the other field- the coherence field- the interaction is given by means of two interaction vertices that are based on the Pauli matrices tau1 and tau3. Consequently, the Hartree integral for the off-diagonal pairing self-energy may be finite, and in some cases large. We interpret the results in terms of conventional superconductivity, and also discuss briefly possible implications to HTSC.
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1418
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédéric
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1418, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1418, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
title: kAGWcAno
Creators: name: Jacques, Guillaume
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Japhug
subject: jya

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7