cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intergalactic Matter and Cocoons of Radio Galaxies
Creators: name: Nath, Biman B.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cocoons surrounding powerful radio sources can be extensive if the jet that feeds the cocoon is light and supersonic. They have been shown to remain overpressured with respect to the ambient medium for most of the life time of the sources. The observed lobes of the radio sources form parts of these extensive cocoons. We show that observations of the lobes of giant radio sources allow one to estimate the {\it density} of the intergalactic medium (IGM) in which the lobes are embedded. We estimate the IGM density to be of the order of a few percent of the closure density of the universe. We further calculate the radio power of the overpressured cocoon as a function of time and the ambient density.
description: 10 pages, Standard Latex file and 1 postscript figure, uuencoded file. To appear in Monthly Notices of RAS
Family Functioning in Children With ADHD and Subthreshold ADHD: A 3-Year Longitudinal Study
Creators: name: Bhide, S
name: Efron, D
name: Ukoumunne, OC
name: Anderson, V
name: Nicholson, Jan
name: Silk, T
name: Hazell, P
name: Gulenc, A
name: Sciberras, E
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 5202
subject: Biological psychology
classificationCode: 5201
subject: Applied and developmental psychology
classificationCode: 5203
subject: Clinical and health psychology

description: Objective: To compare family functioning over time for elementary school children with Attention-Deficit/Hyperactivity Disorder (ADHD; N = 179) and subthreshold ADHD (ST-ADHD; N = 86), to children without ADHD (Control; N = 212). Method: ADHD was assessed using the Conners 3 ADHD Index and Diagnostic Interview Schedule for Children IV. At baseline, 18-month follow-up and 36-month follow-up, parents completed measures assessing a range of family functioning domains. Results: At baseline, the ADHD group reported higher psychological distress, less parenting self-efficacy, less parenting consistency, and more stressful life events; and both groups reported poorer family quality of life (QoL) and greater parenting anger. Trajectories were largely similar to controls (i.e., stable over time), but unlike controls, ADHD and ST-ADHD groups showed lessening parent-partner support and parenting warmth, respectively; and both groups showed worsening aspects of family QoL. Conclusion: Families of children with ADHD and ST-ADHD report persistently poor or worsening family functioning; highlighting a need for tailored psycho-social supports.
Carnet nº 25, commencé à Saïgon (p. 18)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 31-12-1931
Quark-Gluon Plasma/Black Hole duality from Gauge/Gravity Correspondence
Creators: name: Peschanski, Robi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Quark-Gluon Plasma (QGP) is the QCD phase of matter expected to be formed at small proper-times in the collision of heavy-ions at high energy. Experimental observations seem to favor a strongly coupled QCD plasma with the hydrodynamic properties of a quasi-perfect fluid, i.e. rapid thermalization (or isotropization) and small viscosity. The theoretical investigation of such properties is not obvious, due to the the strong coupling. The Gauge/Gravity correspondence provides a stimulating framework to explore the strong coupling regime of gauge theories using the dual string description. After a brief introduction to Gauge/Gravity duality, and among various existing studies, we focus on challenging problems of QGP hydrodynamics, such as viscosity and thermalization, in terms of gravitational duals of both the static and relativistically evolving plasma. We show how a Black Hole geometry arises naturally from the dual properties of a nearly perfect fluid and explore the lessons and prospects one may draw for actual heavy ion collisions from the Gauge/Gravity duality approach.
description: 6 pages, 4 figures, invited talk at the EPS HEP 2007 Conference, Manchester (UK), and at the ``Deuxiemes rencontres PQG-France'', Etretat (2007); reference added
Revisiting the direct detection of dark matter in simplified models
Creators: name: Li, Tong
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we numerically re-examine the loop-induced WIMP-nucleon scattering cross section for the simplified dark matter models and the constraint set by the latest direct detection experiment. We consider a fermion, scalar or vector dark matter component from five simplified models with leptophobic spin-0 mediators coupled only to Standard Model quarks and dark matter particles. The tree-level WIMP-nucleon cross sections in these models are all momentum-suppressed. We calculate the non-suppressed spin-independent WIMP-nucleon cross sections from loop diagrams and investigate the constrained space of dark matter mass and mediator mass by Xenon1T. The constraints from indirect detection and collider search are also discussed.
description: 6 pages, 6 figures, 2 tables. Published in PLB
Irredundant Triangular Decomposition
Creators: name: Pogudin, Gleb
name: Szanto, Agnes
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14Q15, 13P15, 68W30

description: Triangular decomposition is a classic, widely used and well-developed way to represent algebraic varieties with many applications. In particular, there exist sharp degree bounds for a single triangular set in terms of intrinsic data of the variety it represents, and powerful randomized algorithms for computing triangular decompositions using Hensel lifting in the zero-dimensional case and for irreducible varieties. However, in the general case, most of the algorithms computing triangular decompositions produce embedded components, which makes it impossible to directly apply the intrinsic degree bounds. This, in turn, is an obstacle for efficiently applying Hensel lifting due to the higher degrees of the output polynomials and the lower probability of success. In this paper, we give an algorithm to compute an irredundant triangular decomposition of an arbitrary algebraic set $W$ defined by a set of polynomials in C[x_1, x_2, ..., x_n]. Using this irredundant triangular decomposition, we were able to give intrinsic degree bounds for the polynomials appearing in the triangular sets and apply Hensel lifting techniques. Our decomposition algorithm is randomized, and we analyze the probability of success.
The Theory, Implementation, and Evaluation of Spring Mass Running on ATRIAS, a Bipedal Robot
Creators: name: Wu, Albert
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: We expect legged robots to be highly mobile. Human walking and running can execute quick changes in speed and direction, even on non-flat ground. Indeed, analysis of simplified models shows that these quantities can be tightly controlled by adjusting the leg placement between steps, and that leg placement can also compensate for disturbances including changes in the ground height. However, to date, legged robots do not exhibit this level of agility or robustness, nor is it well understood what prevents them from attaining this performance. This thesis begins to bridge the gap between the theoretical motions of simplified models and the implementation of agile behaviors on legged robots. The state of the art allows room for improvement at the level of the simplified model, at the level of hardware demonstration, and at the level of theoretical understanding of applying the simplified model to a real system. We make progress on each of these facets of the problem as we work towards leveraging theory from the simplified model to generate effective control for locomotion on robots. In particular, spring mass theory has identified deadbeat stability for planar running, but it must be formulated in 3D to be applicable to a real system. We extend this behavior to 3D, adding deadbeat steering to the tracking of apex height on unobserved terrain. Running robots have yet to demonstrate the agile and robust behavior that the spring mass model describes; existing implementations do not target the deadbeat behavior. We apply state of the art control techniques to map the deadbeat stabilized planar running onto our robot ATRIAS, and we successfully demonstrate tight tracking of commanded velocities and robustness to unobserved changes in ground height. Despite this empirical proof of concept, it remains unclear how exactly the targeted behavior of the simplified model affects the closed loop behavior of the full order system. There are additional degrees of freedom which affect the tracking of original goals and additional layers of control which may offer other sources of stability. Furthermore, the hardware introduces perturbations and uncertainties which detract from the nominal performance of the full order model. To answer these questions, we formulate a framework founded on linear theory, and we use it to examine the contributions of each component of the control and to quantify the expected effects of the disturbances we encounter. This analysis reveals insights for effective control strategies for legged locomotion and presents a tool for scientific iteration between theory-based control design and evidence-based revision of the underlying theory.
The Time and Location of Natural Reading Processes in the Brain
Creators: name: Wehbe, Leila
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: How is information organized in the brain during natural reading? Where and when do the required processes occur, such as the perception of individual words and the construction of sentence meanings. How are semantics, syntax and higher-level narrative structure represented? Answering these questions is core to understanding how the brain processes language and organizes complex information. However, due to the complexity of language processing, most brain imaging studies focus only on one of these questions using highly controlled stimuli which may not generalize beyond the experimental setting. This thesis proposes an alternative framework to study language processing. We acquire data using a naturalistic reading paradigm, annotate the presented text using natural language processing tools and predict brain activity with machine learning techniques. Finally, statistical testing is used to form rigorous conclusions. We also suggest the use of direct non-parametric hypothesis tests that do not rely on any model assumptions, and therefore do not suffer from model misspecification. Using our framework, we construct a brain reading map from functional magnetic resonance imaging data of subjects reading a chapter of a popular book. This map represents regions that our model reveals to be representing syntactic, semantic, visual and narrative information. Using this single experiment, our approach replicates many results from a wide range of classical studies that each focus on one aspect of language processing. We extend our brain reading map to include temporal dynamics as well as spatial information by using magnetoencephalography. We obtain a spatio-temporal picture of how successive words are processed by the brain. We show the progressive perception of each word in a posterior to anterior fashion. For each region along this pathway we show a differentiation of the word properties that best explain its activity.
Anomalous metamagnetism in the low carrier density Kondo lattice YbRh3Si7
Creators: name: Rai, Binod K.
name: Chikara, S.
name: Ding, Xiaxin
name: Oswald, Iain W. H.
name: Schoenemann, R.
name: Loganathan, V.
name: Hallas, A. M.
name: Cao, H. B.
name: Stavinoha, M.
name: Man, Haoran
name: Carr, Scott
name: Singleton, John
name: Zapf, Vivien
name: Benavides, Katherine
name: Chan, Julia Y.
name: Zhang, Q. R.
name: Rhodes, D.
name: Chiu, Y. C.
name: Balicas, Luis
name: Aczel, A. A.
name: Huang, Q.
name: Lynn, Jeffrey W.
name: Gaudet, J.
name: Sokolov, D. A.
name: Dai, Pengcheng
name: Nevidomskyy, Andriy H.
name: Huang, C. -L.
name: Morosan, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report complex metamagnetic transitions in single crystals of the new low carrier Kondo antiferromagnet YbRh3Si7. Electrical transport, magnetization, and specific heat measurements reveal antiferromagnetic order at T_N = 7.5 K. Neutron diffraction measurements show that the magnetic ground state of YbRh3Si7 is a collinear antiferromagnet where the moments are aligned in the ab plane. With such an ordered state, no metamagnetic transitions are expected when a magnetic field is applied along the c axis. It is therefore surprising that high field magnetization, torque, and resistivity measurements with H||c reveal two metamagnetic transitions at mu_0H_1 = 6.7 T and mu_0H_2 = 21 T. When the field is tilted away from the c axis, towards the ab plane, both metamagnetic transitions are shifted to higher fields. The first metamagnetic transition leads to an abrupt increase in the electrical resistivity, while the second transition is accompanied by a dramatic reduction in the electrical resistivity. Thus, the magnetic and electronic degrees of freedom in YbRh3Si7 are strongly coupled. We discuss the origin of the anomalous metamagnetism and conclude that it is related to competition between crystal electric field anisotropy and anisotropic exchange interactions.
description: 23 pages and 4 figures in the main text. 7 pages and 5 figures in the supplementary material
Event patterns from negative pion spectra in proton-proton and nucleus-nucleus collisions at SPS
Creators: name: Chen, Ya-Hui
name: Liu, Fu-Hu
name: Sarkisyan-Grinbaum, Edward K.
Publisher: name: arXiv
Year: 2018
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: Rapidity-dependent transverse momentum spectra of negatively charged pions measured at different rapidities in proton-proton collisions at the Super Proton Synchrotron (SPS) at various energies within its Beam Energy Scan (BES) program are investigated by using one- and two-component standard distributions where the chemical potential and spin property of particles are implemented. The rapidity spectra are described by a double-Gaussian distribution. At the stage of kinetic freeze-out, the event patterns are structured by the scatter plots in the three-dimensional subspaces of velocity, momentum and rapidity. The results of the studies of the rapidity-independent transverse mass spectra measured at mid-rapidity in proton-proton collisions are compared with those based on the similar transverse mass spectra measured in the most central beryllium-beryllium, argon-scandium and lead-lead collisions from the SPS at its BES energies.
description: 17 pages, 9 figures
The Kosterlitz-Thouless Phenomenon on a Fluid Random Surface
Creators: name: Dalley, S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The problem of a periodic scalar field on a two-dimensional dynamical random lattice is studied with the inclusion of vortices in the action. Using a random matrix formulation, in the continuum limit for genus zero surfaces the partition function is found exactly, as a function of the chemical potential for vortices of unit winding number, at a specific radius in the plasma phase. This solution is used to describe the Kosterlitz- Thouless phenomenon in the presence of 2D quantum gravity as one passes from the ultra-violet to the infra-red.
description: 15 pages. This version to appear in Nucl.Phys.B contains less introductory material (revised)
On the homotopy types of $\mathrm{Sp}(n)$ gauge groups
Creators: name: Kishimoto, Daisuke
name: Kono, Akira
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: Let $\mathcal{G}_{k,n}$ be the gauge group of the principal $\mathrm{Sp}(n)$-bundle over $S^4$ corresponding to $k\in\mathbb{Z}\congπ_3(\mathrm{Sp}(n))$. We refine the result of Sutherland on the homotopy types of $\mathcal{G}_{k,n}$ and relate it with the order of a certain Samelson product in $\mathrm{Sp}(n)$. Then we classify the $p$-local homotopy types of $\mathcal{G}_{k,n}$ for $(p-1)^2+1\ge 2n$.
description: 9 pages
Vector bundles with Theta divisors I: Bundles on Castelnuovo curves
Creators: name: Joshi, Kirti
name: Mehta, V. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D20

description: In this paper we show that semistable vector bundles on a Castelnuovo curve of genus g >= 2 have theta divisors. As a corollary, we deduce that semistable vector bundles on a smooth, general curve of genus g >= 2 which extend to semistable vector bundles on any Castelnuovo degeneration of the general curve admit a theta divisor.
description: 10 pages
The Stochastic Laplacian Heaviside Method in Lattice QCD and its First Applications to Hadron Spectroscopy
Creators: name: Chik Him  Wong
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: Currently, the best way to extract the low-energy predictions of quantum chromodynamics (QCD) is by estimating the QCD path integrals using the Monte Carlo method formulated on a space-time lattice. Determining the hadron mass spectrum is one of the major applications of such an approach. To study a particular state of interest, the energies of all states lying below that state must first be extracted, and many of the levels lying below the masses of the excited resonances are multihadron states. Reliably extracting multi-hadron energies is challenging since quark propagators that begin and end on the same final time-slice are essential. A novel method of estimating such quark propagators is proposed. This method, known as the ‘stochastic Laplacian Heaviside’ algorithm, combines Laplacian-Heaviside quark smearing with a new stochastic estimator of quark propagators. The method works well even in large spatial volumes. The implementation of the method is discussed in detail and its effectiveness is demonstrated in various systems, such as in determining the isovector and isoscalar meson energies, and calculating the energies of two-pion states. The inclusion of the scalar glueball is also studied.
Another Flattened Dark Halo: Plar Ring Galaxy A0136-0801
Creators: name: Sackett, Penny D.
name: Pogge, Richard W.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Knowledge of the shape of dark matter halos is critical to our understanding of galaxy formation, dynamics, and of the nature of dark matter itself. Polar ring galaxies (PRGs) --- early-type galaxies defined by their outer rings of gas, dust and stars on orbits nearly perpendicular to those of the central host --- provide a rare probe of the vertical-to-radial axis ratio $ (q_ρ = c/a)$ of dark halos. We present a Fabry-Perot velocity field for the H$α$ gas in the kinematically-confirmed PRG \gal. By comparing ring orbits evolved in a generalized mass model to the observed ring velocity field and morphology of \gal, we conclude that $q_ρ\sim 0.5$ and rule out a spherical geometry.
description: uuencoded gz-compressed file with figures included
Pew Research Center: September 2018 Political Survey
Creators: name: Pew Research Center
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Satisfaction with way things are going in country (1); President Donald Trump approval (1); how closely have you followed campaigns in your election district (1); Republican vs. Democratic candidate for Congress in your district (1); voter enthusiasm compared to previous congressional elections (1); party control of Congress (1); Trump factor in vote (1); importance of issues in your vote for Congress (16); Trump impressions (8); economic conditions in country (1); personal financial situation (2); economic situation compared to before 2008 economic crisis (1); statements better describe Republican/Democratic parties (9); Democrats in control of Congress spend too much time investigating Trump administration (1); Republicans in control of Congress not focus enough on oversight of Trump administration (1); lack of effort/circumstances beyond control to blame for individual poverty (1); reasons why an individual is rich (1); government regulation of business (1); fairness of economic system in this country (1); America's openness to people from all over the world (1); United States foreign policy and national interests (1); changes in country to give blacks equal rights with whites (1); fairness of other countries to U.S. (1); more important to protect right of Americans to own guns/control gun ownership (1); government involvement in providing health care coverage (2); single national health insurance system/current system (1); priority for dealing with illegal immigration (1); approval of tax law passed by Trump and Congress (1); increased tariffs between U.S. and trading partners (1); abortion legality (1); marijuana legalization (1); favorability of political parties (2); Pope Francis favorability, job approval (5); investigation into Russian involvement in 2016 presidential election (3); U.S.’ 2001 decision to use military force in Afghanistan (1); U.S. goals in Afghanistan (1); attend religious services (1); registered to vote (1); Republicans in Congress obligated to support Trump because he is Republican president (1); cell phone ownership (3).
Durability of the superconducting gap in Majorana nanowires under orbital effects of a magnetic field
Creators: name: Wójcik, P.
name: Nowak, M. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the superconducting gap in semiconductor/superconductor nanowires under orbital effects of a magnetic field in the weak- and strong-hybridization regimes using an universal procedure that guarantees the stationarity of the system -- vanishing of the supercurrent induced by spatially varying vector potential. We perform minimization of the free energy with respect to the vector potential which allows to account for the orbital effects even for systems with intrinsically broken spatial symmetries. For the experimentally relevant scenario of a strongly coupled semiconductor/superconductor, where the wave function of the charge carriers hybridizes between the two materials, we find that the gap closes due to the orbital effects in a sizable magnetic field compatible with the the recent experimental report [S. M. Albrecht, et al., Nature 531, 206 (2016)].
description: 8 pages, 7 figures
Same-sign WW scattering at the LHC: can we discover BSM effects before discovering new states?
Creators: name: Kalinowski, Jan
name: Kozów, Paweł
name: Pokorski, Stefan
name: Rosiek, Janusz
name: Szleper, Michał
name: Tkaczyk, Sławomir
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is possible that measurements of vector boson scattering (VBS) at the LHC will reveal disagreement with Standard Model predictions, but no new particles will be observed directly. The task is then to learn as much as possible about the new physics from a VBS analysis carried within the framework of the Effective Field Theory (EFT). In this paper we discuss issues related to the correct usage of the EFT when the WW invariant mass is not directly accessible experimentally, as in purely leptonic W decay channels. The strategies for future data analyses in case such scenario indeed occurs are proposed.
description: 24 pages
Quantum Fermion Hair
Creators: name: Gregory, Ruth
name: Harvey, Jeffrey
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the Dirac operator in the background of a magnetic %Reissner-Nordström black hole and a Euclidean vortex possesses normalizable zero modes in theories containing superconducting cosmic strings. One consequence of these zero modes is the presence of a fermion condensate around magnetically charged black holes which violates global quantum numbers.
description: 16pp (harvmac (l)) and 2 figs.(not included)
Strong Rashba effect in the localized impurity states of halogen-doped monolayer PtSe2
Creators: name: Absor, Moh. Adhib Ulil
name: Santosa, Iman
name: Harsojo
name: Abraha, Kamsul
name: Kotaka, Hiroki
name: Ishii, Fumiyuki
name: Saito, Mineo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The recent epitaxial growth of 1T-phase of PtSe2 monolayer (ML) has opened a possibility for its novel applications, in particular for spintronics device. However, in contrast to 2H-phase of transition-metal dichalcogenides (TMDs), the absence of spin splitting in the PtSe2 ML may limit the functionality for spintronics application. Through fully-relativistic density-functional theory calculations, we show that large spin splitting can be induced in the PtSe2 ML by introducing a substitutional halogen impurity. Depending on the atomic number (Z) of the halogen dopants, we observe an enhancement of the spin splitting in the localized impurity states (LIS), which is due to the increased contribution of the p-d orbitals coupling. More importantly, we identify very large Rashba splitting in the LIS near Fermi level around the Gamma point characterized by hexagonal warping of the Fermi surface. We show that the Rashba splitting can be controlled by adjusting the doping concentration. Therefore, this work paves a possible way to induce the significant Rashba splitting in the two-dimensional TMDs, which is useful for spintronic devices operating at room temperature.
description: 6 Figures, 2 tables
Infinite Symmetry in the Fractional Quantum Hall Effect
Creators: name: Flohr, Michael
name: Varnhagen, Raimund
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have generalized recent results of Cappelli, Trugenberger and Zemba on the integer quantum Hall effect constructing explicitly a ${\cal W}_{1+\infty}$ for the fractional quantum Hall effect such that the negative modes annihilate the Laughlin wave functions. This generalization has a nice interpretation in Jain's composite fermion theory. Furthermore, for these models we have calculated the wave functions of the edge excitations viewing them as area preserving deformations of an incompressible quantum droplet, and have shown that the ${\cal W}_{1+\infty}$ is the underlying symmetry of the edge excitations in the fractional quantum Hall effect. Finally, we have applied this method to more general wave functions.
description: 15pp. LaTeX, BONN-HE-93-29
The Cause of Photospheric and Helioseismic Responses to Solar Flares: High-Energy Electrons or Protons?
Creators: name: Kosovichev, A. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Analysis of the hydrodynamic and helioseismic effects in the photosphere during the solar flare of July 23, 2002, observed by Michelson Doppler Imager (MDI) on SOHO, and high-energy images from RHESSI shows that these effects are closely associated with sources of the hard X-ray emission, and that there are no such effects in the centroid region of the flare gamma-ray emission. These results demonstrate that contrary to expectations the hydrodynamic and helioseismic responses (''sunquakes") are more likely to be caused by accelerated electrons than by high-energy protons. A series of multiple impulses of high-energy electrons forms a hydrodynamic source moving in the photosphere with a supersonic speed. The moving source plays a critical role in the formation of the anisotropic wave front of sunquakes.
description: 13 pages, 5 figures, ApJL in press
The Spectrum of Kaon States in the Isodoublet strangeness S = 1 T1u Channel by the Stochastic LapH Method in Lattice QCD
Creators: name: You-Cyuan  Jhang
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: Lattice QCD calculations of energies in bosonic channels have mostly been restricted
to the use of quark-antiquark meson operators due to the computational
challenges associated with evaluating correlation functions of multi-meson operators.
The stochastic LapH method has provided an efficient way to compute correlation
functions involving multi-hadron operators. This method is applied to construct a
58x58 correlation matrix using 9 single-meson operators and 49 two-meson operators
in the isodoublet strangeness S = 1 T1u channel, which contains the spin-1 and spin-3
kaon states. The matrix of temporal correlations is evaluated using a Monte Carlo
ensemble of 551 configurations on an anisotropic 243 x 128 lattice. Due to computational
limitations, light quark masses are used that produce an unphysically heavy
pion having a mass around 390 MeV, but the strange quark mass is tuned to its physical
value. A clover-improved Wilson fermion action is used in generating the Monte
Carlo ensemble, and the correlators are formed using source and sink operators constructed
out of Laplacian Heaviside smeared quark fields displaced with stout-smeared
gauge links. Overlap factors are used to identify the finite-volume eigenstates that
should evolve into the kaon resonances in infinite volume. These results are compared
to experiment and to results from a previous study for the isovector nonstrange T+1u channel.
Parafermionic generalization of the topological Kondo effect
Creators: name: Snizhko, Kyrylo
name: Buccheri, Francesco
name: Egger, Reinhold
name: Gefen, Yuval
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose and study a parafermionic generalization of the topological Kondo effect. The latter has been predicted to arise for a Coulomb-blockaded mesoscopic topological superconductor (Majorana box), where at least three normal leads are tunnel-coupled to different Majorana zero modes on the box. The Majorana states represent a quantum impurity spin that is partially screened due to cotunneling processes between leads, with a stable non-Fermi liquid ground state. Our theory studies a generalization where (i) Majorana states are replaced by topologically protected parafermionic zero modes, (ii) charging effects again define a spin-like quantum impurity on the resulting parafermion box, and (iii) normal leads are substituted by fractional edge states. In this multi-terminal problem, different fractional edge leads couple only via the parafermion box. We show that although the linear conductance tensor exhibits similar behavior as in the Majorana case, both at weak and strong coupling, our parafermionic generalization is actually not a Kondo problem but defines a rich new class of quantum impurity problems. At the strong-coupling fixed point, a current injected through a reference lead will be isotropically partitioned into outgoing currents in all other leads, together with a universal negative current scattered into the reference lead. The device can thus be operated as current extractor, where the current partitioning is noiseless at the fixed point. We describe a fractional quantum Hall setup proximitized by superconductors and ferromagnets, which could allow for an experimental realization in the near future.
description: 14 pages, 2 figures
The Spectrum of Meson States in the Isovector Non-strange T+1u Channel by the Stochastic LapH Method in Lattice QCD
Creators: name: Lenkner, David
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: A new method of estimating quark propagation, known as Stochastic LapH, has
provided a way of computing many observables in lattice QCD which have previously
been inaccessible due to computational expense. In this work, the first large-scale
applications of the Stochastic LapH method to excited meson spectroscopy are presented.
We discuss the construction of single-meson and two-meson operators with
LapH smearing, and procedures for selecting and correlating large sets of these operators
are described. We then present the analysis of a 56 × 56 correlator matrix
of operators in the isovector nonstrange T+1u channel. We extract the energy of the
ρ meson, and discuss the identification and energy extractions of excited ρ mesons.
Operators are included for all
avor combinations that can result in the I = 1, S = 0
total quantum numbers of the desired symmetry channel. The correlation matrix is
calculated on 551 configurations of an anisotropic 243×128 gauge field ensemble with
clover-improved Wilson fermions. Good signal quality is obtained even for correlators
involving same-time quark lines and isoscalar mesons as part of two-meson operators.
Results are compared with experimental values compiled by the Particle Data Group.
Rise of the First Super-Massive Stars
Creators: name: Regan, John A.
name: Downes, Turlough P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use high resolution adaptive mesh refinement simulations to model the formation of massive metal-free stars in the early Universe. By applying Lyman-Werner (LW) backgrounds of 100 J$_{21}$ and 1000 J$_{21}$ respectively we construct environments conducive to the formation of massive stars. We find that only in the case of the higher LW backgrounds are super-critical accretion rates realised that are necessary for super-massive star (SMS) formation. Mild fragmentation is observed for both backgrounds. Violent dynamical interactions between the stars that form in the more massive halo formed (1000 J$_{21}$ background) results in the eventual expulsion of the two most massive stars from the halo. In the smaller mass halo (100 J$_{21}$ background) mergers of stars occur before any multibody interactions and a single massive Pop III star is left at the centre of the halo at the end of our simulation. Feedback from the very massive Pop III stars is not effective in generating a large HII region with ionising photons absorbed within a few thousand AU of the star. In all cases a massive black hole seed is the expected final fate of the most massive objects. The seed of the massive Pop III star which remained at the centre of the less massive halo experiences steady accretion rates of almost $10^{-2}$ M$_{\odot}$/yr and if these rates continue could potentially experience super-Eddington accretion rates in the immediate aftermath of collapsing into a black hole.
description: 14 pages, 9 figures. MNRAS Accepted. Minor changes after referee report
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Cart. 166 (11 H 64), 136 folios, f. 0004r
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/2012
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: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0004r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0004r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
ATLAS Deliverable 9.1 - Dissemination and Exploitation Plan (DEP) V3 (M38)
Creators: name: Wilson, Annette
Publisher: name: Zenodo
Year: 2019
Subjects: Dissemination and Exploitation Plan

description: This version of the ATLAS Dissemination and Exploitation Plan (DEP) was updated (M32) by AquaTT, with input from the ATLAS Project Office (University of Edinburgh) and Dynamic Earth, further revised (M33 - M38) and validated by the consortium in M38 (21.06.19). The ATLAS Dissemination and Exploitation Plan (DEP) describes the activities to be performed and the dissemination and exploitation means to be used in order to promote ATLAS and exploit the project results.

 The ATLAS DEP identifies the key project stakeholders, defines the communication and dissemination channels, describes the means (tools, messages) of dissemination and details the targeted events and conferences of the project. In addition, the DEP includes a link to the Data Management Plan (DMP) and describes the internal process set up to manage the knowledge outputs and to ensure exploitation of ATLAS results.

 The DEP contains a set of protocols to ensure that all relevant knowledge produced by the project is carefully managed. The protocols are set up to:
 a) Disseminate the ATLAS project and its results, ensuring information provision and awareness raising.
 b) Collect, analyse and transfer research outputs (e.g. products, methodologies, findings) to end-users who can make the best use of those results. The transfer phase will ensure that relevant information and knowledge is customised so that it is ready for uptake by different target end-users.
 c) Ensure ATLAS’s foreground and Intellectual Property (IP) are properly managed.
Dilaton Gravity and No-Hair Theorem in Two Dimensions
Creators: name: Lechtenfeld, Olaf
name: Nappi, Chiara
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a general class of two-dimensional theories of the dilaton-gravity type inspired by string theory and show that they admit charged multiple-horizon black holes. These solutions are proved to satisfy scalar no-hair theorems.
description: 11 pages, no figures, macropackage=phyzzx
The Short Time Fourier Transform and Local Signals
Creators: name: Okamura, Shuhei
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: Probability
subject: Statistics
subject: FOS: Mathematics

description: In this thesis, I examine the theoretical properties of the short time discrete Fourier transform (STFT). The STFT is obtained by applying the Fourier transform by a fixed-sized, moving window to input series. We move the window by one time point at a time, so we have overlapping windows. I present several theoretical properties of the STFT, applied to various types of complex-valued, univariate time series inputs, and their outputs in closed forms. In particular, just like the discrete Fourier transform, the STFT’s modulus time series takes large positive values when the input is a periodic signal. One main point is that a white noise time series input results in the STFT output being a complex-valued stationary time series and we can derive the time and time-frequency dependency structure such as the cross- covariance functions. Our primary focus is the detection of local periodic signals. I present a method to detect local signals by computing the probability that the squared modulus STFT time series has consecutive large values exceeding some threshold after one exceeding observation following one observation less than the threshold. We discuss a method to reduce the computation of such probabilities by the Box-Cox transformation and the delta method, and show that it works well in comparison to the Monte Carlo simulation method.
Entanglement Entropy of Topological Orders with Boundaries
Creators: name: Chen, Chaoyi
name: Hung, Ling-Yan
name: Li, Yingcheng
name: Wan, Yidun
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we explore how non trivial boundary conditions could influence the entanglement entropy in a topological order in 2+1 dimensions. Specifically we consider the special class of topological orders describable by the quantum double. We will find very interesting dependence of the entanglement entropy on the boundary conditions particularly when the system is non-Abelian. Along the way, we demonstrate a streamlined procedure to compute the entanglement entropy, which is particularly efficient when dealing with systems with boundaries. We also show how this method efficiently reproduces all the known results in the presence of anyonic excitations.
description: 29 pages, 11 figures
First-order optical spatial differentiator based on a guided-mode resonant grating
Creators: name: Bykov, Dmitry A.
name: Doskolovich, Leonid L.
name: Morozov, Andrey A.
name: Podlipnov, Vladimir V.
name: Bezus, Evgeni A.
name: Verma, Payal
name: Soifer, Victor A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: 78-05

description: We present an experimental demonstration of a subwavelength diffraction grating performing first-order differentiation of the transverse profile of an incident optical beam with respect to a spatial variable. The experimental results are in a good agreement with the presented analytical model suggesting that the differentiation is performed in transmission at oblique incidence and is associated with the guided-mode resonance of the grating. According to this model, the transfer function of the grating in the vicinity of the resonance is close to the transfer function of an exact differentiator. We confirm this by estimating the transfer function of the fabricated structure on the basis of the measured profiles of the incident and transmitted beams. The considered structure may find application in the design of new photonic devices for beam shaping, optical information processing, and analog optical computing.
description: 10 pages, 5 figures
Synchronization Invariance Under Network Structural Transformations
Creators: name: Arola-Fernandez, Lluis
name: Diaz-Guilera, Albert
name: Arenas, Alex
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Synchronization processes are ubiquitous despite the many connectivity patterns that complex systems can show. Usually, the emergence of synchrony is a macroscopic observable, however, the microscopic details of the system, as e.g. the underlying network of interactions, is many times partially or totally unknown. We already know that different interaction structures can give rise to a common functionality, understood as a common macroscopic observable. Building upon this fact, here, we propose network transformations that keep the collective behavior of a large system of Kuramoto oscillators functionally invariant. We derive a method based on information theory principles, that allows us to adjust the weights of the structural interactions to map random homogeneous -in degree- networks into random heterogeneous networks and vice-versa, keeping synchronization values invariant. The results of the proposed transformations reveal an interesting principle; heterogeneous networks can be mapped to homogeneous ones with local information, but the reverse process needs to exploit higher-order information. The formalism provides new analytical insight to tackle real complex scenarios when dealing with uncertainty in the measurements of the underlying connectivity structure.
description: 5 pages, 2 figures
Cluster Alignments in the Edinburgh/Milano Cluster Redshift Survey
Creators: name: Martin, D. R.
name: Nichol, R. C.
name: Collins, C. A.
name: Lumsden, S. A.
name: Guzzo, L.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here the results of a statistical search for cluster alignments using the Edinburgh/Milano cluster redshift survey. This survey is a unique cluster database which has been objectively constructed to help minimise the systematic biases associated with previous optical cluster catalogues. We find some evidence for cluster alignments out to spatial separations of $<10\mpc$, however, it is not statistically significant. On larger scales, we find no evidence, statistically significant or not, for cluster alignments. These results are in most disagreement with the recent observations of West and Plionis; both of whom see significant cluster alignments out to $\simeq30\mpc$ and beyond in the Abell \& Lick catalogues of clusters. Our findings are consistent with other searches for cluster alignments that do not involve these catalogues.
description: postscript file of text (8pages), but not figures. Four figures available via anon ftp on oddjob.uchicago.edu (pub/align_fig*.ps), rest available from nichol@oddjob.uchicago.edu. Paper accepted for publication in Monthly Notices
Equivalence of Several Chern-Simons Matter Models
Creators: name: Chen, Wei
name: Itoi, Chigak
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Not only does Chern-Simons (CS) coupling characterize statistics, but also spin and scaling dimension of matter fields. We demonstrate spin transmutation in relativistic CS matter theory, and moreover show equivalence of several models. We study CS vector model in some details, which provide consistent check to the assertion of the equivalence.
description: latex, 7page, IFT-478-UNC/NUP-A-93-15 A version within the length limit for Phys. Rev. Letts (in press)