cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2MASS J10274572+0629104: The very short period young M6 Dwarf Binary System identified in K2 data
Creators: name: Paudel, Rishi R.
name: Gizis, John E.
name: Burgasser, Adam J.
name: Hsu, Chih-Chun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the identification of a very low mass new binary system 2MASS J10274572+0629104, based on Kepler K2 photometry and Gaia DR2 astrometry. The K2 light curve is consistent with a beat pattern of two periodic signals, and using Lomb-Scargle periodogram, we find two rotation periods of 0.2114 \pm 0.0002 day and 0.2199 \pm 0.0003 day.We conclude that these rotation periods arise from two stars with similar spectral types of M6, and have near equal luminosity. It is the first ultracool binary system to be identified based on beat patterns in the light curve. Near-infrared spectroscopy yields RV = -9.8 \pm 0.6 km s^-1, v sin i = 21.5 \pm 1.1 km s^-1, T_eff = 3110 \pm 40 K, and log g = 5.2 \pm 0.2. The motions are consistent with a young age, as are the rotation periods, but the source does not appear to be part of any known moving group. Furthermore, we detected three strong white light flares in the K2 light curve, with estimated total bolometric (UV/optical/IR) energies to be 2.6 X 10^33, 5.0 X 10^33, and 3.5 X 10^33 erg respectively.
description: 4 figures, 4 pages, submitted to MNRAS
How to Measure CP Violation in Neutrino Oscillation Experiments?
Creators: name: Minakata, Hisakazu
name: Nunokawa, Hiroshi
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a new method for measuring CP violation in neutrino oscillation experiments. The idea is to isolate the term due to the CP-violating phase out of the oscillation probability by taking difference between yields of two (or three) detectors at path-lengths $L = 250 (\frac{E}{1.35 {GeV}}) (\frac{Δm^2}{10^{-2}{eV}^2})^{-1} {km}$ and at $L/3$ (and also at $2L/3$ in the case of three detectors). We use possible hierarchies in neutrino masses suggested by the astrophysical and the cosmological observations to motivate the idea and to examine how the method works.
description: RevTex, 17 pages including 4 ps figures
A chiral twist on the high-$T_c$ phase diagram in Moiré heterostructures
Creators: name: Lin, Yu-Ping
name: Nandkishore, Rahul M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the large orbital degeneracy inherent in Moiré heterostructures naturally gives rise to a `high-$T_c$' like phase diagram with a chiral twist - wherein an exotic $\textit{quantum anomalous Hall}$ insulator phase is flanked by chiral $d+id$ superconducting domes. Specifically, we analyze repulsively interacting fermions on hexagonal (triangular or honeycomb) lattices near Van Hove filling, with an ${\rm SU}(N_f)$ flavor degeneracy. This model is inspired by recent experiments on graphene Moiré heterostructures. At this point, a nested Fermi surface and divergent density of states give rise to strong ($\ln^2$) instabilities to correlated phases, the competition between which can be controllably addressed through a combination of weak coupling parquet renormalization group and Landau-Ginzburg analysis. For $N_f=2$ (i.e. spin degeneracy only) it is known that chiral $d+id$ superconductivity is the unambiguously leading weak coupling instability. Here we show that $N_f\geq4$ leads to a richer (but still unambiguous and fully controllable) behavior, wherein at weak coupling the leading instability is to a fully gapped and chiral $\textit{Chern insulator}$, characterized by a spontaneous breaking of time reversal symmetry and a quantized Hall response. Upon doping this phase gives way to a chiral $d+id$ superconductor. We further consider deforming this minimal model by introducing an orbital splitting of the Van Hove singularities, and discuss the resulting RG flow and phase diagram. Our analysis thus bridges the minimal model and the practical Moiré band structures, thereby providing a transparent picture of how the correlated phases arise under various circumstances. Meanwhile, a similar analysis on the square lattice predicts a phase diagram where (for $N_f>2$) a nodal staggered flux phase with `loop current' order gives way upon doping to a nodal $d$-wave superconductor.
description: 20 pages, 8 figures. Add analysis of orbital splitting, bridging the minimal model and the practical Moire band structures
First-principles study of stability and vibrational properties of tetragonal PbTiO_3
Creators: name: Garcia, Alberto
name: Vanderbilt, David
Publisher: name: arXiv
Year: 1996
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A first-principles study of the vibrational modes of PbTiO_3 in the ferroelectric tetragonal phase has been performed at all the main symmetry points of the Brillouin zone (BZ). The calculations use the local-density approximation and ultrasoft pseudopotentials with a plane-wave basis, and reproduce well the available experimental information on the modes at the Gamma point, including the LO-TO splittings. The work was motivated in part by a previously reported transition to an orthorhombic phase at low temperatures [(J. Kobayashi, Y. Uesu, and Y. Sakemi, Phys. Rev. B {\bf 28}, 3866 (1983)]. We show that a linear coupling of orthorhombic strain to one of the modes at Gamma plays a role in the discussion of the possibility of this phase transition. However, no mechanical instabilities (soft modes) are found, either at Gamma or at any of the other high-symmetry points of the BZ.
description: 8 pages, two-column style with 3 postscript figures embedded. Uses REVTEX and epsf macros. Also available at http://www.physics.rutgers.edu/~dhv/preprints/index.html#ag_pbti
Local magnetism, magnetic order and spin freezing in the 'nonmetallic metal' FeCrAs
Creators: name: Huddart, B. M.
name: Birch, M. T.
name: Pratt, F. L.
name: Blundell, S. J.
name: Porter, D. G.
name: Clark, S. J.
name: Wu, W.
name: Julian, S. R.
name: Hatton, P. D.
name: Lancaster, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the results of x-ray scattering and muon-spin relaxation ($μ^{+}$SR) measurements on the iron-pnictide compound FeCrAs. Polarized non-resonant magnetic x-ray scattering results reveal the 120$^\circ$ periodicity expected from the suggested three-fold symmetric, non-collinear antiferromagnetic structure. $μ^+$SR measurements indicate a magnetically ordered phase throughout the bulk of the material below $T_\mathrm{N}$=105(5) K. There are signs of fluctuating magnetism in a narrow range of temperatures above $T_\mathrm{N}$ involving low-energy excitations, while at temperatures well below $T_\mathrm{N}$ behaviour characteristic of freezing of dynamics is observed, likely reflecting the effect of disorder in our polycrystalline sample. Using density functional theory we propose a distinct muon stopping site in this compound and assess the degree of distortion induced by the implanted muon.
How to measure the Bogoliubov quasiparticle amplitudes in a trapped condensate
Creators: name: Brunello, A.
name: Dalfovo, F.
name: Pitaevskii, L.
name: Stringari, S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We propose an experiment, based on two consecutive Bragg pulses, to measure the momentum distribution of quasiparticle excitations in a trapped Bose gas at low temperature. With the first pulse one generates a bunch of excitations carrying momentum $q$, whose Doppler line is measured by the second pulse. We show that this experiment can provide direct access to the amplitudes $u_{q}$ and $v_{q}$ characterizing the Bogoliubov transformations from particles to quasiparticles. We simulate the behavior of the nonuniform gas by numerically solving the time dependent Gross-Pitaevskii equation.
description: 12 pages, 4 figures included
Auger decay of degenerate and Bose-condensed excitons in Cu$_2$O
Creators: name: Kavoulakis, G. M.
name: Baym, Gordon
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the non-radiative Auger decay of excitons in Cu$_2$O, in which two excitons scatter to an excited electron and hole. The exciton decay rate for the direct and the phonon-assisted processes is calculated from first principles; incorporating the band structure of the material leads to a relatively shorter lifetime of the triplet state ortho excitons. We compare our results with the Auger decay rate extracted from data on highly degenerate triplet excitons and Bose-condensed singlet excitons in Cu$_2$O.
description: 15 pages, revtex, figures available from G. Kavoulakis
Complex Adiabatic Connection: a Hidden Non-Hermitian Path from Ground to Excited States
Creators: name: Burton, Hugh G. A.
name: Thom, Alex J. W.
name: Loos, Pierre-François
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Processes related to electronically excited states are central in many areas of science, however accurately determining excited-state energies remains a major challenge in theoretical chemistry. Recently, higher energy stationary states of non-linear methods have themselves been proposed as approximations to excited states, although the general understanding of the nature of these solutions remains surprisingly limited. In this Letter, we present an entirely novel approach for exploring and obtaining excited stationary states by exploiting the properties of non-Hermitian Hamiltonians. Our key idea centres on performing analytic continuations of conventional quantum chemistry methods. Considering Hartree--Fock theory as an example, we analytically continue the electron-electron interaction to expose a hidden connectivity of multiple solutions across the complex plane, revealing a close resemblance between Coulson--Fischer points and non-Hermitian degeneracies. Finally, we demonstrate how a ground-state wave function can be morphed naturally into an excited-state wave function by constructing a well-defined complex adiabatic connection.
description: 5 pages, 3 figures
Supplementary Figures from Common noctules exploit low levels of the aerosphere
Creators: name: M. Teague O'Mara
name: Wikelski, Martin
name: Kranstauber, Bart
name: Dechmann, Dina K. N.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m. To understand how bats use vertical space, we tracked one to five foraging flights of eight common noctules (Nyctalus noctula). Bats were tracked for their full foraging session (87.27 ± 24 min) using high-resolution atmospheric pressure radio transmitters that allowed us to calculate height and wingbeat frequency. Bats used diverse flight strategies, but generally flew lower than 40 m, with scouting flights to 100 m and a maximum of 300 m. We found no influence of weather on height and high-altitude ascents were not preceded by an increase in foraging effort. Wingbeat frequency was independent from climbing or descending flight, and bats skipped wingbeats or glided in 10% of all observations. Wingbeat frequency was positively related to capture mass, and wingbeat frequency was positively related to time of night, indicating an effect of load increase over a foraging bout. Overall, individuals used a wide range of airspace including altitudes that put them at increased risk from human-made structures. Further work is needed to test the context of these flight decisions, particularly as individuals migrate throughout Europe.
High-harmonic generation in quantum spin systems
Creators: name: Takayoshi, Shintaro
name: Murakami, Yuta
name: Werner, Philipp
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the high-harmonic generation (HHG) in one-dimensional spin systems. While in electronic systems the driving by AC electric fields produces radiation from the dynamics of excited charges, we consider here the situation where spin systems excited by a magnetic field pulse generate radiation via a time-dependent magnetization. Specifically, we study the magnetic dipole radiation in two types of ferromagnetic spin chain models, the Ising model with static longitudinal field and the XXZ model, and reveal the structure of the spin HHG and its relation to spin excitations. For weak laser amplitude, a peak structure appears which can be explained by time-dependent perturbation theory. With increasing amplitude, plateaus with well-defined cutoff energies emerge. In the Ising model with longitudinal field, the thresholds of the multiple plateaus in the radiation spectra can be explained by the annihilation of multiple magnons. In the XXZ model, which retains the $\mathbf{Z}_{2}$ symmetry, the laser magnetic field can induce a phase transition of the ground state when it exceeds a critical value, which results in a drastic change of the spin excitation character. As a consequence, the first cutoff energy in the HHG spectrum changes from a single-magnon to a two-magnon energy at this transition. Our results demonstrate the possibility of generating high-harmonic radiation from magnetically ordered materials and the usefulness of high-harmonic signals for extracting information on the spin excitation spectrum.
description: 20 pages, 24 figures
Contact resistance of quantum tubes
Creators: name: Mortensen, Niels Asger
name: Johnsen, Kristinn
name: Jauho, Antti-Pekka
name: Flensberg, Karsten
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial confinement. We calculate the transmission coefficients which yield the conductance via the Landauer formula. We relate our results to armchair carbon nanotubes embedded in a metal. For Al and Au contacts and tubes with a realistic radial confinement we find that the transmission can be close to unity corresponding to a contact resistance close to h/2e^2 per band at the Fermi level in the carbon nanotube.
description: 13 pages including 5 figures. Accepted for publication in Superlattices and Microstructures. (stylefile included)
Models of care for adults with cerebral palsy: a scoping review protocol.
Creators: name: Cadwgan, Jill
name: Morrison, Stewart C.
name: Wolfe, Ingrid
name: Turner, Susie
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Medical Sciences
subject: Public Health
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Community Health and Preventive Medicine
subject: Neurology

description: This scoping review will identify and describe the available evidence regarding the extent, nature and characteristics of models of care for adults with cerebral palsy.
Landscape pattern changes over 25 years across a hotspot zone in southern Brazil
Creators: name: Ferreira, Igor José Malfetoni
name: Bragion, Gabriel Da Rocha
name: Ferreira, José Hilário Delconte
name: Evanilde Benedito
name: Edivando Vitor Do Couto
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Forest fragmentation caused by human activities has many implications for natural landscapes, such as habitat reduction and the loss of biodiversity. This study investigated the temporal fragmentation process of forest remnants in a strongly agro-industrialised region in southern Brazil over 25 years. The studied watershed area hosts two important typologies of the Atlantic Forest biome as well as Quaternary remnants of the Brazilian Savanna biome, which are considered hotspots of biodiversity and reflect the intense process of forest fragmentation caused by Brazilian urban and agro-industrial development. Thus, studies encompassing multitemporal scales are paramount to understanding changes in forest patterns and are fundamental for trend predictions of landscape dynamics. To perform the calculation of the mean normalised difference vegetation index, Landsat satellite images from 1991 to 2016 were processed using SPRING® software. Subsequently, FRAGSTATS® software was used to calculate landscape metrics. A reduction in the number of forest fragments since 1991 was observed, with a maximum amount of 5 243 fragments in 1993 that declined to 4 015 fragments in 2016. Although the number of fragments in the watershed decreased, the mean area increased by 72.9% and the mean of the shape index increased from 1.3 in 1991 to 1.5 in 2016. In addition, there was a 64.7% increase in the edge density and a reduction of 35.6 m in the isolation between the nearest neighbours. The degree of isolation of the fragments underwent a process of expansion and reduction when compared to 1991, presenting results that support the hypothesis that the Atlantic Forest is in a process of stabilisation and forest restoration.
Excited states of $ϕ$ meson
Creators: name: Pang, Cheng-qun
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper, the excited states of $ϕ$ meson, especially containing the newly observed $X(2000)$ with $I(J^P)=0(1^-)$ by the BESIII Collaboration, is studied. In addition, $Y(2175)$ as a $ϕ$ {\color{black}{meson excited state}} is investigated. The mass spectrum and strong decay behaviors of $ϕ$ {\color{black}{meson excited states}} are analyzed, which indicates that $X(2000)$ and $Y(2175)$ are the candidates of $ϕ(3S)$ and $ϕ(2D)$ states with $I(J^P)=0(1^-)$, respectively. In addition, {\color{black}{$ϕ(1D)$ and $ϕ(4S)$ are}} predicted to have the mass of 1.87 GeV and 2.5 GeV and width of 550 MeV and 230 MeV, respectively.
description: 6 pages. PRD edition,data updated
Cyclic Shape Invariant Potentials
Creators: name: Sukhatme, U. P.
name: Rasinariu, C.
name: Khare, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We formulate and study the set of coupled nonlinear differential equations which define a series of shape invariant potentials which repeats after a cycle of $p$ iterations. These cyclic shape invariant potentials enlarge the limited reservoir of known analytically solvable quantum mechanical eigenvalue problems. At large values of $x$, cyclic superpotentials are found to have a linear harmonic oscillator behavior with superposed oscillations consisting of several systematically varying frequencies. At the origin, cyclic superpotentials vanish when the period $p$ is odd, but diverge for $p$ even. The eigenvalue spectrum consists of $p$ infinite sets of equally spaced energy levels, shifted with respect to each other by arbitrary energies $ω_0,ω_1,\...,ω_{p-1}$. As a special application, the energy spacings $ω_k$ can be identified with the periodic points generatedby the logistic map $z_{k+1}=r z_k (1 - z_k)$. Increasing the value of $r$ and following the bifurcation route to chaos corresponds to studying cyclic shape invariant potentials as the period $p$ takes values 1,2,4,8,...
description: 13 pages, 4 figures
MPEC 2024-G45 : 2019 NF6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Entanglement Evolution in Lifshitz-type Scalar Theories
Creators: name: Mozaffar, M. Reza Mohammadi
name: Mollabashi, Ali
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study propagation of entanglement after a mass quench in free scalar Lifshitz theories. We show that entanglement entropy goes across three distinct growth regimes before relaxing to a generalized Gibbs ensemble, namely 'initial rapid growth', 'main linear growth' and 'tortoise saturation'. We show that although a wide spectrum of quasi-particles are responsible for entanglement propagation, as long as the occupation number of the zero mode is not divergent, the linear main growth regime is dominated by the fastest quasi-particle propagating on the edges of a widen light-cone. We present strong evidences in support of effective causality and therefore define an effective notion of saturation time in these theories. The larger the dynamical exponent is, the shorter the linear main growth regime becomes. Due to a pile of tortoise modes which become dominant after saturation of fast modes, exact saturation time is postponed to infinity.
description: 28 pages, v2: a minor clarification, matches JHEP version
Inclusive Decay Distributions of Coherent Two-body States
Creators: name: Yamamoto, Hitoshi
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When a vector meson such as phi, J/Ψ(3S) or Upsilon(4S) decays to a particle-antiparticle pair of neutral mesons, the time distribution of inclusive decay to a given final state is naively expected to be the incoherent sum of those of the two mesons with opposite flavors. In this paper, we show that this is in general not the case for arbitrary coherent two-body states of the mesons, and obtain conditions under which such a naive incoherent sum gives the correct distributions. The analysis is based on the Weisskopf-Wigner formalism, and applicable to the cases where there are more than two orthogonal states that can mix to form a set of eigenstates of mass and decay rate.
description: 11 pages, no figures, Latex
New paradigm for fluctuations in heavy-ion collisions
Creators: name: Giacalone, Giuliano
name: Guerrero-Rodríguez, Pablo
name: Luzum, Matthew
name: Marquet, Cyrille
name: Ollitrault, Jean-Yves
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Since their discovery, fluctuations in the initial state of heavy-ion collisions have been understood as originating mostly from the random positions of nucleons within the colliding nuclei. We consider an alternative approach where all the focus is on fluctuations generated by QCD interactions, that we evaluate at leading logarithmic accuracy in the color glass condensate effective theory. We validate our approach using BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC) data on anisotropic flow. In particular, we show that, compared to standard Glauber-inspired calculations, our formalism provides a better description of the centrality dependence of the ratio of elliptic flow and triangular flow. It also naturally explains the evolution of elliptic flow fluctuations between RHIC and LHC energies.
description: v1: 7 pages, 2 figures. v2: 10 pages, 6 figures; Extensive revision of the paper. We now use ATLAS data. More observables investigated in Figs 3 and 4. Detailed justification of formulas in Appendix A. Validity of formalism assessed in Appendix B
Supplemental tables for McNew et al. variation in tolerance from Annual environmental variation influences host tolerance to parasites
Creators: name: McNew, Sabrina M.
name: Knutie, Sarah A.
name: Goodman, Graham B.
name: Theodosopoulos, Angela
name: Saulsberry, Ashley
name: Janai Yépez, R.
name: Bush, Sarah E.
name: Clayton, Dale H.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 60801 Animal Behaviour

description: Summary tables of data and analyses.
Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers
Creators: name: Ajala, Sam O
name: Muyideen O Olayiwola
name: Oluyinka J Ilesanmi
name: Melaku Gedil
name: Job, Anthony O
name: Amudalat B Olaniyan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Low soil nitrogen (low-N) level is responsible for yield reduction in maize (Zea mays L.) fields in sub-Saharan Africa. A clear understanding of the genetic diversity among early generation inbred lines selected from various elite low-N- tolerant populations offers an opportunity to obtain lines that could be used in parental combinations to develop high-yielding low-N-tolerant maize hybrids. A total of 115 S3 lines derived from four low-N-tolerant populations were assessed for genetic diversity using 15 670 single nucleotide polymorphism (SNP) markers. The SNP markers were highly polymorphic with polymorphic information content ranging from 0.0 to 0.38. The genetic diversity among the inbred lines ranged from 0.0 to 0.50 and thus indicated the high level of dissimilarity among the inbred lines. The neighbour-joining clustering algorithm and model-based population structure classified the 115 lines into four distinct groups that were generally consistent with the genetic backgrounds of the inbred lines. The information obtained from this study revealed genetic diversity among the inbred lines and may guide the selection of potential parents for detailed combining ability studies and eventual use in hybrid combinations. The selected inbred lines would be invaluable in the development of low-N-tolerant hybrids.
Mechanism of Poisoning the Catalytic Activity of Pd(100) by a Sulfur Adlayer
Creators: name: Wilke, Steffen
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 1996
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The modification of the potential-energy surface (PES) of H_2 dissociation over Pd(100) as induced by the presence of a (2x2) S adlayer is investigated by density-functional theory and the linear augmented plane wave method. It is shown that the poisoning effect of S originates from the formation of energy barriers hindering the dissociation of H_2. The barriers are in the entrance channel of the PES and their magnitude strongly depends on the lateral distance of the H_2 molecule from the S adatoms.
description: RevTeX, 14 pages, 3 figures
Device-independent tests of structures of measurement incompatibility
Creators: name: Quintino, Marco Túlio
name: Budroni, Costantino
name: Woodhead, Erik
name: Cabello, Adán
name: Cavalcanti, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In contrast with classical physics, in quantum physics some sets of measurements are incompatible in the sense that they can not be performed simultaneously. Among other applications, incompatibility allows for contextuality and Bell nonlocality. This makes of crucial importance developing tools for certifying whether a set of measurements posses a certain structure of incompatibility. Here we show that, for quantum or nonsignaling models, if the measurements employed in a Bell test satisfy a given type of compatibility, then the amount of violation of some specific Bell inequalities become limited. Then, we show that correlations arising from local measurements on two-qubit states violate these limits, which rules out in a device-independent way such structures of incompatibility. In particular, we prove that quantum correlations allow for a device-independent demonstration of genuine triplewise incompatibility. Finally, we translate these results into a semi-device-independent Einstein-Podolsky-Rosen-steering scenario.
description: Substantial improvements, several new results added, new author added. 18 pages, 4 figures
Porc des âmes
Creators: name: Glesener, Thomas
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Coverage: LP: Estemoz (Espagne) ; LS: Metauten (Espagne) ; LS: Pampelune (Espagne)
description: Le « porc des âmes » est une pratique répandue dans toute l’Europe méridionale d’Ancien Régime qui consiste à nourrir collectivement un porc avant de le mettre en loterie pour appliquer son produit à des messes en la mémoire des morts.
description: date: 1723-1786
Wetting transitions of He4 on alkali metal surfaces from density functional calculations
Creators: name: Ancilotto, Francesco
name: Faccin, Fabio
name: Toigo, Flavio
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have studied the wetting properties of He4 adsorbed on the surface of heavy alkali metals by using a non-local free-energy density-functional which describes accurately the surface properties of liquid He4 in the temperature range 0
description: 10 pages LATEX file + 5 figures (PostScript format). Sumbitted for publication in Phys. Rev. B
Supplementary document for Taxonomy of hybridly polarized Stokes vortex beams - 6728166.pdf
Creators: name: Butola, Ankit
name: Arora, Gauri
name: ., Ruchi
name: Agarwal, Rohit
name: Agarwal, Krishna
name: Horsch, Alexander
name: Prasad, Dilip
name: Senthilkumaran, Paramasivam
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: supplemental document
title: Physical Shape Optimisation of Channels and Pipes to Improve Fluid Flow
Creators: name: Blacher, David
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Heuristische Optimierung
subject: Lattice Boltzmann Methode
subject: Zellulärer Automat
subject: laminare Durchströmung
subject: heuristic shape optimisation
subject: lattice Boltzmann method
subject: cellular automaton
subject: laminar internal flow

description: Ein minimaler Druckverlust in Rohrströmungen ist maßgeblich für technische Anwendungen und deren Energieeffizienz. Zur Optimierung von Strömungsgeometrien hinsichtlich des darin auftretenden Druckverlusts wurden zahlreiche computergestützte Methoden entwickelt. Darunter fällt auch ein heuristischer Ansatz in Verbindung mit numerischen Strömungssimulationen, der Erosions- und Sedimentationsprozesse nachahmt. Zwar gelang es mit dieser Methode, den Druckverlust zu verringern, jedoch ging damit eine Verbreiterung der Strömungsgeometrie einher. Um allein den Einfluss des Strömungswegs auf den Druckverlust beurteilen zu können, wird in dieser Arbeit eine neue Nebenbedingung präsentiert, die den mittleren Durchmesser der Strömungsgeometrie während der Optimierung konstant hält. Die Anwendbarkeit dieses neuen Algorithmus wurde am Beispiel von 2D Kanal- und 3D Rohrgeometriengetestet. Zu diesem Zweck wurden numerische Simulationen unter Verwendung der Lattice Boltzmann Methode mit Reynolds-Zahlen zwischen 40 und 500 durchgeführt. In den meisten Fällen konnten Geometrien mit verringertem Druckverlust gefunden und gleichzeitig der initialeRohrdurchmesser konstant gehalten werden.
description: Minimising pressure drop in pipes of fluid flow applications plays a critical role in the strive towards energy efficiency. Numerous computational optimisation tools that are capable of modifying flow geometries to reduce the pressure drop have been developed. Among these, a heuristic optimisation algorithm which mimics erosion and sedimentation processes has been proposed. Although this method succeeded in modifying flow geometries for reduced pressure drop, this allowed the fluid domain to widen during the reshaping process. This implied that a reported reduction of pressure drop was not only caused by an improvement of the flow path, but also by an increase in the domain width. Here, the heuristic optimisation approach was combined with a new geometrical constraint that kept the average diameter constant. This way,a reduction of pressure drop caused solely by the modification of the flow path can be assessed. An objective of this research was to determine the applicability of the new algorithm for 2D channel and 3D pipe geometries. For this purpose, numerical simulations using the Lattice Boltzmann method were conducted with Reynolds numbers ranging from 40 to 500. In most cases, the method succeeded in finding an improved shape while keeping the average diameter at its initial value.
Shot-noise in non-degenerate semiconductors with energy-dependent elastic scattering
Creators: name: Schomerus, H.
name: Mishchenko, E. G.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate current fluctuations in non-degenerate semiconductors, on length scales intermediate between the elastic and inelastic mean free paths. The shot-noise power P is suppressed below the Poisson value P_{\rm Poisson}=2e\bar I (at mean current \bar I) by the Coulomb repulsion of the carriers. We consider a power-law dependence of the elastic scattering time τ\proptoε^α on kinetic energy εand present an exact solution of the non-linear kinetic equations in the regime of space-charge limited conduction. The ratio P/P_{\rm Poisson} decreases from 0.38 to 0 in the range -1/2 < α< 1.
description: 9 pages including 2 ps figures, requires lamuphys.sty, to appear in Proceedings of the XVI Sitges Conference (Lecture Notes in Physics, Springer)
Electronic and Magnetic Structure of LaCuO$_{2.5}$
Creators: name: Normand, B.
name: Rice, T. M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The recently-discovered ``ladder'' compound LaCuO$_{2.5}$ has been found to admit hole doping without altering its structure of coupled copper oxide ladders. While susceptibility measurements on the parent compound suggest a spin gap and a spin-liquid state, NMR results indicate magnetic order at low temperatures. These seemingly contradictory results may be reconciled if in fact the magnetic state is near the crossover from spin liquid to antiferromagnet, and we investigate this possibility. From a tight-binding fit to the valence LDA bandstructure, we deduce that the strength of the interladder hopping term is approximately half that of intraladder hopping, showing that the material is three-dimensional in character. A mean-field treatment of the insulating magnetic state gives a spin-liquid phase whose spin gap decreases with increasing interladder coupling, vanishing (signalling a transition to the ordered phase) at a value somewhat below that obtained for LaCuO$_{2.5}$. The introduction of an on-site repulsion term, $U$, to the band scheme causes a transition to an antiferromagnetic insulator for rather small but finite values of $U$, reflecting the predominance of (one-dimensional) ladder behavior, and an absence of any special nesting features.
description: 8 pages + 5 figures
Bell-state correlations in current of local Fermi liquid
Creators: name: Sakano, Rui
name: Oguri, Akira
name: Nishikawa, Yunori
name: Abe, Eisuke
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study Bell-state correlations for quasiparticle pairs excited in nonlinear current through a double quantum dot in the Kondo regime. Exploiting the renormalized perturbation expansion in the residual interactions of the local Fermi liquid and Bell's inequality for cross correlation of spin currents through distinct conduction channels, we derive an asymptotically exact form of Bell's correlation for the double dot at low bias voltages. We find that pairs of quasiparticles and holes excited by the residual exchange interaction can violate Bell's inequality for the cross correlations of the spin currents.
Defining a bulk-edge correspondence for non-Hermitian Hamiltonians via singular-value decomposition
Creators: name: Herviou, Loic
name: Bardarson, Jens H.
name: Regnault, Nicolas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We address the breakdown of the bulk-boundary correspondence observed in non-Hermitian systems, where open and periodic systems can have distinct phase diagrams. The correspondence can be completely restored by considering the Hamiltonian's singular value decomposition instead of its eigendecomposition. This leads to a natural topological description in terms of a flattened singular decomposition. This description is equivalent to the usual approach for Hermitian systems and coincides with a recent proposal for the classification of non-Hermitian systems. We generalize the notion of the entanglement spectrum to non-Hermitian systems, and show that the edge physics is indeed completely captured by the periodic bulk Hamiltonian. We exemplify our approach by considering the chiral non-Hermitian Su-Schrieffer-Heger and Chern insulator models. Our work advocates a different perspective on topological non-Hermitian Hamiltonians, paving the way to a better understanding of their entanglement structure.
description: 6+5 pages, 8 figures
Bayesian semi-supervised learning for uncertainty-calibrated prediction of molecular properties and active learning
Creators: name: Zhang, Yao
name: Lee, Alpha A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Predicting bioactivity and physical properties of small molecules is a central challenge in drug discovery. Deep learning is becoming the method of choice but studies to date focus on mean accuracy as the main metric. However, to replace costly and mission-critical experiments by models, a high mean accuracy is not enough: Outliers can derail a discovery campaign, thus models need reliably predict when it will fail, even when the training data is biased; experiments are expensive, thus models need to be data-efficient and suggest informative training sets using active learning. We show that uncertainty quantification and active learning can be achieved by Bayesian semi-supervised graph convolutional neural networks. The Bayesian approach estimates uncertainty in a statistically principled way through sampling from the posterior distribution. Semi-supervised learning disentangles representation learning and regression, keeping uncertainty estimates accurate in the low data limit and allowing the model to start active learning from a small initial pool of training data. Our study highlights the promise of Bayesian deep learning for chemistry.
description: Chemical Science, in press
title: 02_1685
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Supplementary document for Investigation into fabrication and optical characteristics of tunable optofluidic microlenses using two-photon polymerization - 6846205.pdf
Creators: name: Wang, Zhenghao
name: Wu, Yongling
name: YU, WENHUI
name: qi, dongfeng
name: BAKHTIYARI, ALI NADERI
name: Zheng, Hongyu
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: additional data
Ultra Bright LED Light Injection Calibration System for MINOS
Creators: name: Anderson, B.
name: Anjomshoaa, A.
name: Dervan, P.
name: Lauber, J. A.
name: Thomas, J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe here a proposal for a light injection calibration system for the MINOS detectors based on ultra bright blue LEDs as the light source. We have shown that these LEDs are bright enough to span over two orders of magnitude in light intensity, commensurate with that expected in a single scintillator strip in the MINOS neutrino detectors.
description: 9 pages, 13 figures, Submitted to NIM
Dynamic optimization for the enzymatic production of acylglycerols
Creators: name: Laís Koop
name: Soares, Lorena I.
name: Voll, Fernando Augusto Pedersen
name: Bonilla-Petriciolet, Adrian
name: Corazza, Marcos Lúcio
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry

description: Optimal control of substrate feed rate in glycerolysis of vegetable oils was studied as a tool to improve monoacylglycerols (MAG) and diacylglycerols (DAG) production. Stochastic optimization strategy (Differential Evolutionary algorithm) was used to deal with the high complexity of the enzyme-catalyzed reactions dynamic behavior. Depending on the reaction system, optimal control of glycerol feed rate into the reaction showed to avoid enzymatic inhibition by the glycerol and improve acylglycerols yields up to 50% when compared to batch system. The obtained results showed that optimal control strategy can be used as an efficient tool to maximize the amount of desired product obtained by enzyme-catalyzed glycerolysis, particularly when the biocatalyst activity is significantly affected by substrate concentration.
Vector Meson Dominance and $g_{ρππ}$ at Finite Temperature from QCD Sum Rules
Creators: name: Dominguez, C. A.
name: Fetea, M. S.
name: Loewe, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A Finite Energy QCD sum rule at non-zero temperature is used to determine the $q^2$- and the T-dependence of the $ρππ$ vertex function in the space-like region. A comparison with an independent QCD determination of the electromagnetic pion form factor $F_π$ at $T \neq 0$ indicates that Vector Meson Dominance holds to a very good approximation at finite temperature. At the same time, analytical evidence for deconfinement is obtained from the result that $g_{ρππ}(q^{2},T)$ vanishes at the critical temperature $T_c$, independently of $q^{2}$. Also, by extrapolating the $ρππ$ form factor to $q^2 = 0$, it is found that the pion radius increases with increasing $T$, and it diverges at $T=T_c$.
description: 7 pages, Latex, 3 figures to be delivered from the authors by request, to appear in Phys. Lett. B
Time Evolution of an Infinite Projected Entangled Pair State: an Efficient Algorithm
Creators: name: Czarnik, Piotr
name: Dziarmaga, Jacek
name: Corboz, Philippe
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An infinite projected entangled pair state (iPEPS) is a tensor network ansatz to represent a quantum state on an infinite 2D lattice whose accuracy is controlled by the bond dimension $D$. Its real, Lindbladian or imaginary time evolution can be split into small time steps. Every time step generates a new iPEPS with an enlarged bond dimension $D' > D$, which is approximated by an iPEPS with the original $D$. In Phys. Rev. B 98, 045110 (2018) an algorithm was introduced to optimize the approximate iPEPS by maximizing directly its fidelity to the one with the enlarged bond dimension $D'$. In this work we implement a more efficient optimization employing a local estimator of the fidelity. For imaginary time evolution of a thermal state's purification, we also consider using unitary disentangling gates acting on ancillas to reduce the required $D$. We test the algorithm simulating Lindbladian evolution and unitary evolution after a sudden quench of transverse field $h_x$ in the 2D quantum Ising model. Furthermore, we simulate thermal states of this model and estimate the critical temperature with good accuracy: $0.1\%$ for $h_x=2.5$ and $0.5\%$ for the more challenging case of $h_x=2.9$ close to the quantum critical point at $h_x=3.04438(2)$.
description: published version, presentation improved