cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vortex rings from high energy central p+A collisions
Creators: name: Lisa, Michael Annan
name: Barbon, João Guilherme Prado
name: Chinellato, David Dobrigkeit
name: Serenone, Willian Matioli
name: Shen, Chun
name: Takahashi, Jun
name: Torrieri, Giorgio
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Relativistic p+A collisions may produce droplets of quark gluon plasma (QGP) that quickly develop a toroidal vortex structure similar to that of an expanding smoke ring. We present viscous relativistic hydrodynamic calculations of ultra-central p+A collisions and develop an experimental observable to probe the structure, correlating the polarization and momentum of hyperons emitted from the collision. The effect is robust against changes in the definition of vorticity used to calculate the polarization. Experiments at RHIC and LHC may test the existence and strength of the vortex toroids, bringing new evidence to bear on the question of collectivity in the smallest QGP droplets.
description: 5 pages, 4 figures; For v2, references updated; v3 is as published: emphasized that the effect is the same regardless of the "type" of vorticity used in the calculation
An Ammonia Removal for Red Craw Crayfish NurseryWater Pond by using Electrocoagulation Method
Creators: name: Nopporn Patcharaprakiti
Publisher: name: Division of research facilitation and dissemination Mahasarakham University
Year: 2019
Subjects: electrocoagulation, ammonia removal, red craw crayfish

description: Research & Knowledge, 5, 1, 10-15
Study of two-photon decay in He-like gold
Creators: name: Trotsenko, S.
name: Banas, D.
name: Gumberidze, A.
name: Kozhuharov, C.
name: Zhang, R.
name: Ananyeva, A.
name: Beyer, H.
name: Blumenhagen, K.
name: Brandau, C.
name: Bräuning-Demian, A.
name: Chen, W.
name: Gao, B.
name: Gassner, T.
name: Hagmann, S.
name: Hillenbrand, P.
name: Lestinsky, M.
name: Litvinov, Y.
name: Petridis, N.
name: Schippers, S.
name: Schury, D.
name: Spillmann, U.
name: Trageser, C.
name: Trassinelli, M.
name: Tu, X.
name: Winters, D.
name: Zhu, X.
name: Stöhlker, T.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
MPEC 2024-A83 : 2024 AT1
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
subject: 2024 AT1

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.
Superconformal mechanics of AdS$_2$ D-brane boundstates
Creators: name: Mirfendereski, Delaram
name: Raeymaekers, Joris
name: Bleeken, Dieter Van den
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly construct a family of ${\cal N}=4$ superconformal mechanics of dyonic particles, generalizing the work of Anninos et al.\,\cite{Anninos:2013nra} to an arbitrary number of particles. These mechanics are obtained from a scaling limit of the effective Coulomb branch description of ${\mathcal N}=4$ quiver quantum mechanics describing D-branes in type II Calabi-Yau compactifications. In the supergravity description of these D-branes this limit changes the asymptotics to AdS$_2\times $S$^2\times$CY$_3$. We exhibit the $D(1,2;0)$ superconformal symmetry and conserved charges of the mechanics in detail. In addition we present an alternative formulation as a sigma model on a hyperkähler manifold with torsion.
description: 27 pages + appendices. V2: typos corrected, references added, hyperlinks fixed
Deep RNA sequencing of muscle tissue reveals absence of viral signatures in dermatomyositis
Creators: name: Corman, Victor M.
name: Preusse, Corinna
name: Melchert, Julia
name: Benveniste, Olivier
name: Koll, Randi
name: Goebel, Hans-Hilmar
name: Jones, Terry C.
name: Drosten, Christian
name: Schara-Schmidt, Ulrike
name: Leonard-Louis, Sarah
name: Stenzel, Werner
name: Radke, Josefine
Publisher: name: Free Neuropathology
Year: 2024
Subjects: Dermatomyositis (DM)
Interferon (IFN)
Viral signature
Next generation sequencing

description: Objective: To explore a possible connection between active viral infections and manifestation of Dermatomyositis (DM).

Methods: Skeletal muscle biopsies were analyzed from patients diagnosed with juvenile (n=10) and adult (n=12) DM. Adult DM patients harbored autoantibodies against either TIF-1γ (n=7) or MDA5 (n=5). Additionally, we investigated skeletal muscle biopsies from non-diseased controls (NDC, n=5). We used an unbiased high-throughput sequencing (HTS) approach to detect viral sequences. To further increase sequencing depth, a host depletion approach was applied.

Results: In this observational study, no relevant viral sequences were detected either by native sequencing or after host depletion. The absence of detectable viral sequences makes an active viral infection of the muscle tissue unlikely to be the cause of DM in our cohorts.

Discussion: Type I interferons (IFN) play a major role in the pathogenesis of both juvenile and adult dermatomyositis (DM). The IFN response is remarkably conserved between DM subtypes classified by specific autoantibodies. Certain acute viral infections are accompanied by a prominent type I IFN response involving similar downstream mechanisms as in DM. Aiming to elucidate the pathogenesis of DM in skeletal muscle tissue, we used an untargeted high-throughput sequencing and a host depletion approach to detect possible causative viruses.
description: Free Neuropathology, Vol. 5 (2024)
Simultaneous generation for zeta values by the Markov-WZ method
Creators: name: Pilehrood, Kh. Hessami
name: Pilehrood, T. Hessami
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 05A19, 05A15, 05A10, 11M06

description: By application of the Markov-WZ method, we prove a more general form of a bivariate generating function identity containing, as particular cases, Koecher's and Almkvist-Granville's Apéry-like formulae for odd zeta values. As a consequence, we get a new identity producing Apéry-like series for all $ζ(2n+4m+3),$ $n,m\ge 0,$ convergent at the geometric rate with ratio $2^{-10}.$
description: 7 pages
Experimental studies on elastic X-ray scattering
Creators: name: Blumenhagen, K.
name: Gaßner, T.
name: Gumberidze, A.
name: Märtin, R.
name: Schell, N.
name: Spillmann, U.
name: Trotsenko, S.
name: Weber, G.
name: Stöhlker, T.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Superconformal Boundaries in $4-ε$ dimensions
Creators: name: Gimenez-Grau, Aleix
name: Liendo, Pedro
name: van Vliet, Philine
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Boundaries in three-dimensional $\mathcal{N}=2$ superconformal theories may preserve one half of the original bulk supersymmetry. There are two possibilities which are characterized by the chirality of the leftover supercharges. Depending on the choice, the remaining $2d$ boundary algebra exhibits $\mathcal{N}=(0,2)$ or $\mathcal{N}=(1,1)$ supersymmetry. In this work we focus on correlation functions of chiral fields for both types of supersymmetric boundaries. We study a host of correlators using superspace techniques and calculate superconformal blocks for two- and three-point functions. For $\mathcal{N}=(1,1)$ supersymmetry, some of our results can be analytically continued in the spacetime dimension while keeping the codimension fixed. This opens the door for a bootstrap analysis of the $ε$-expansion in supersymmetric BCFTs. Armed with our analytically-continued superblocks, we prove that in the free theory limit two-point functions of chiral (and antichiral) fields are unique. The first order correction, which already describes interactions, is universal up to two free parameters. As a check of our analysis, we study the Wess-Zumino model with a supersymmetric boundary using Feynman diagrams, and find perfect agreement between the perturbative and bootstrap results.
description: 45 pages, no figures
Comparing community structure identification
Creators: name: Danon, Leon
name: Duch, Jordi
name: Diaz-Guilera, Albert
name: Arenas, Alex
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We compare recent approaches to community structure identification in terms of sensitivity and computational cost. The recently proposed modularity measure is revisited and the performance of the methods as applied to ad hoc networks with known community structure, is compared. We find that the most accurate methods tend to be more computationally expensive, and that both aspects need to be considered when choosing a method for practical purposes. The work is intended as an introduction as well as a proposal for a standard benchmark test of community detection methods.
description: 10 pages, 3 figures, 1 table. v2: condensed, updated version as appears in JSTAT
S-EBIT at HITRAP: status report
Creators: name: Trotsenko, S.
name: Chen, W.
name: Menssen, J.
name: Vorobjev, G.
name: Racano, D.
name: Gumberidze, A.
name: Kozhuharov, C.
name: Forstner, O.
name: Hillenbrand, P.
name: Herfurth, Frank
name: Schuch, R.
name: Stöhlker, T.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
MPEC 2024-C104 : 2021 HE41
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
subject: 2021 HE41

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.
ppbar enhancement in B and J/Psi decay
Creators: name: Haidenbauer, J.
name: Meißner, Ulf-G.
name: Sibirtsev, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The near-threshold enhancement in the ppbar invariant mass spectrum from the B^+ -> K^+ ppbar decay reported recently by the BaBar Collaboration is studied within the Jülich NNbar model. We illustrate that the invariant mass dependence of the ppbar spectrum close to the threshold can be reproduced by the final state interactions. This explanation is in line with our previous analysis of the ppbar invariant mass spectrum from the J/Psi -> gamma ppbar decay measured by the BES Collaboration. We also comment on a structure found recently in the pi^+ pi^- eta' mass spectrum of the radiative J/Psi decay by the BES Collaboration. In particular we argue that one should be rather cautions in bringing this structure in connection with the enhancement found in the ppbar invariant mass spectrum or with the existence of NNbar bound states.
description: 4 pp, 2 figs, uses revtex4
A spectral gap property for random walks under unitary representations
Creators: name: Bekka, Bachir
name: Guivarc'h, Yves
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 37A15; 37A30

description: Let $G$ be a locally compact group and $μ$ a probability measure on $G,$ which is not assumed to be absolutely continuous with respect to Haar measure. Given a unitary representation $(π, \cal H)$ of $G,$ we study spectral properties of the operator $π(μ)$ acting on $\cal H.$ Assume that $μ$ is adapted and that the trivial representation $1_G$ is not weakly contained in the tensor product $π\otimes \barπ.$ We show that $π(μ)$ has a spectral gap, that is, for the spectral radius $r_{\rm spec}(π(μ))$ of $π(μ),$ we have $r_{\rm spec}(π(μ))<1.$ This provides a common generalization of several previously known results. Another consequence is that, if $G$ has Kazhdan's Property (T), then $r_{\rm spec}(π(μ))<1$ for every unitary representation $π$ of $G$ without finite dimensional subrepresentations. Moreover, we give new examples of so-called identity excluding groups.
description: 19 pages
Moduli of complexes on a proper morphism
Creators: name: Lieblich, Max
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10, 14A20

description: Given a proper morphism X -> S, we show that a large class of objects in the derived category of X naturally form an Artin stack locally of finite presentation over S. This class includes S-flat coherent sheaves and, more generally, contains the collection of all S-flat objects which can appear in the heart of a reasonable sheaf of t-structures on X. In this sense, this is the Mother of all Moduli Spaces (of sheaves). The proof proceeds by studying the finite presentation properties, deformation theory, and Grothendieck existence theorem for objects in the derived category, and then applying Artin's representability theorem.
description: 25 pages. Revised version, to appear in the Journal of Algebraic Geometry
A stably free nonfree module and its relevance for homotopy classification, case Q_{28}
Creators: name: Beyl, F. Rudolf
name: Waller, Nancy
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57M20, 55P15, 19A13

description: The paper constructs an `exotic' algebraic 2-complex over the generalized quaternion group of order 28, with the boundary maps given by explicit matrices over the group ring. This result depends on showing that a certain ideal of the group ring is stably free but not free. As it is not known whether the complex constructed here is geometrically realizable, this example is proposed as a suitable test object in the investigation of an open problem of C.T.C. Wall, now referred to as the D(2)-problem.
description: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol5/agt-5-37.abs.html
Ultrafast charging in a two-photon Dicke quantum battery
Creators: name: Crescente, Alba
name: Carrega, Matteo
name: Sassetti, Maura
name: Ferraro, Dario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a collection of two level systems, such as qubits, embedded into a microwave cavity as a promising candidate for the realization of high power quantum batteries. In this perspective, the possibility to design devices where the conventional single-photon coupling is suppressed and the dominant interaction is mediated by two-photon processes is investigated, opening the way to an even further enhancement of the charging performance. By solving a Dicke model with both single- and two-photon coupling we determine the range of parameters where the latter unconventional interaction dominates the dynamics of the system leading to better performances both in the charging times and average charging power of the QB compared to the single-photon case. In addition, the scaling of the maximum stored energy, fluctuations and charging power with the finite number of qubits N is inspected. While the energy and fluctuations scale linearly with N, the quadratic growth of the average power leads to a relevant improvement of the charging performance of quantum batteries based on this scheme with respect to the purely single-photon coupling case. Moreover, it is shown that the charging process is progressively faster by increasing the coupling from the weak to the ultra-strong regime.
description: 13 pages, 9 figures
Being Muslims in Bima of Sumbawa, Indonesia : practice, politics and cultural diversity
Creators: name: Sila, Muhammad Adlin
Publisher: name: The Australian National University
Year: 2014

description: This thesis argues that religious practice remains vigorous in present Bima. It examines the various ways in which Bima Muslims constitute their Islamic identities and agencies through rituals and festivals. The title being Muslim is intended to express how Muslims in Bima consider their religious practices, politics and culture as Islamic. The focus is on the productive agency of Muslims within the embodied meanings of being Muslim in everyday life. The thesis investigates Islam in Bima as experienced by the local Muslims. Given the importance of social context, I approach Bimanese Muslims as social actors. Although Islamic practices are unified in the name of Islam, varied expressions of Islamic practices among Bima Muslims reflect particular historical cultural legacies and socio-political contexts. As part of an Austronesian culture, Bima belongs to a dyadic socio-political organisation: the Sultan and the Raja Bicara. This duality has resulted in the dynamics of Islamisation and being Muslim in Bima. The thesis is ideally suited to exploring the reproduction of religious meanings among the local Muslims. The Islamic observance in Bima makes up what it means to be Muslim as a socially constructed reality that exists in the minds of the local Muslims and differ between social groups. Islam is represented between the traditionalist Muslims and the reformist Muslims, between the royal family and the ordinary Muslims, and between Muslim clerics and lay people. Hence there is no single picture of Islam. As Bima Muslims construe their Islam in response to their surroundings, what it means to be a Muslim is constantly negotiated. The complexity of religious life is said to have been a result of the duality of socio-political settings in Bima that stems from the early period of Bima Islamisation to the present.
Topological Field Theory of Non-Hermitian Systems
Creators: name: Kawabata, Kohei
name: Shiozaki, Ken
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Hermiticity gives rise to unique topological phases without Hermitian analogs. However, the effective field theory has yet to be established. Here, we develop a field-theoretical description of the intrinsic non-Hermitian topological phases. Because of the dissipative and nonequilibrium nature of non-Hermiticity, our theory is formulated solely in terms of spatial degrees of freedom, which contrasts with the conventional theory defined in spacetime. It provides the universal understanding about non-Hermitian topological phenomena, such as the unidirectional transport in one dimension and the chiral magnetic skin effect in three dimensions. Furthermore, it systematically predicts new physics; we illustrate this by revealing transport phenomena and skin effects in two dimensions induced by a perpendicular spatial texture. From the field-theoretical perspective, the non-Hermitian skin effect, which is anomalous localization due to non-Hermiticity, is shown to be a signature of an anomaly.
description: 6+8 pages, 1+6 figures
FKPP dynamics mediated by a parent field with a delay
Creators: name: Stanley, Steffanie
name: Kogan, Oleg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We examine a modification of the Fisher-Kolmogorov-Petrovsky-Piskunov (FKPP) process in which the diffusing substance requires a parent density field for reproduction. A biological example would be the density of diffusing spores (propagules) and the density of a stationary fungus (parent). The parent produces propagules at a certain rate, and the propagules turn into the parent substance at another rate. We model this evolution by the FKPP process with delay, which reflects a finite time typically required for a new parent to mature before it begins to produce propagules. While the FKPP process with other types of delays have been considered in the past as a pure mathematical construct, in our work a delay in the FKPP model arises in a natural science setting. The speed of the resulting density fronts is shown to decrease with increasing delay time, and has a non-trivial dependence on the rate of conversion of propagules into the parent substance. Remarkably, the fronts in this model are always slower than Fisher waves of the classical FKPP model. The largest speed is half of the classical value, and it is achieved at zero delay and when the two rates are matched.
Logic Column 12: Logical Verification and Equational Verification
Creators: name: Pucella, Riccardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1; F.3.1

description: This article examines two approaches to verification, one based on using a logic for expressing properties of a system, and one based on showing the system equivalent to a simpler system that obviously has whatever property is of interest. Using examples such as process calculi and regular programs, the relationship between these two approaches is explored.
description: 11 pages
Focusing and phase compensation of paraxial beams by a left-handed material slab
Creators: name: Luo, Hailu
name: Hu, Wei
name: Ren, Zhongzhou
name: Shu, Weixing
name: Li, Fei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: On the basis of angular spectrum representation, a formalism describing paraxial beams propagating through an isotropic left-handed material (LHM) slab is presented. The treatment allows us to introduce the ideas of beam focusing and phase compensation by LHM slab. Because of the negative refractive index of LHM slab, the inverse Gouy phase shift and the negative Rayleigh length of paraxial Gaussian beam are proposed. It is shown that the phase difference caused by the Gouy phase shift in right-handed material (RHM) can be compensated by that caused by the inverse Gouy phase shift in LHM. If certain matching conditions are satisfied, the intensity and phase distributions at object plane can be completely reconstructed at the image plane.
description: 12 pages, 4 figures
Nearby young single black holes
Creators: name: Prokhorov, M. E.
name: Popov, S. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider nearby young black holes formed after supernova explosions in close binaries whose secondary components are currently observed as the so-called runaway stars. Using data on runaway stars and making reasonable assumptions about the mechanisms of supernova explosions and binary breakup, we estimate the present position of nearby young black holes. For two objects, we obtained relatively small error regions ($\sim 50$-100 deg$^2$). The possibility of detecting these nearby young black holes is discussed.
description: 14 pages with 7 figures
Flavor-dependent radiative corrections in coherent elastic neutrino-nucleus scattering
Creators: name: Tomalak, Oleksandr
name: Machado, Pedro
name: Pandey, Vishvas
name: Plestid, Ryan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate coherent elastic neutrino-nucleus scattering cross sections on spin-0 nuclei (e.g. $^{40}$Ar and $^{28}$Si) at energies below 100 MeV within the Standard Model and account for all effects of permille size. We provide a complete error budget including uncertainties at nuclear, nucleon, hadronic, and quark levels separately as well as perturbative error. Our calculation starts from the four-fermion effective field theory to explicitly separate heavy-particle mediated corrections (which are absorbed by Wilson coefficients) from light-particle contributions. Electrons and muons running in loops introduce a nontrivial dependence on the momentum transfer due to their relatively light masses. These same loops, and those mediated by tau leptons, break the flavor universality because of mass-dependent electromagnetic radiative corrections. Nuclear physics uncertainties significantly cancel in flavor asymmetries resulting in subpercent relative errors. We find that for low neutrino energies, the cross section can be predicted with a relative precision that is competitive with neutrino-electron scattering. We highlight potentially useful applications of such a precise cross section prediction ranging from precision tests of the Standard Model, to searches for new physics and to the monitoring of nuclear reactors.
description: 42 pages, 6 figures, v2: journal version; references added; legends to figures added; definition of the weak charge extended; definition of the weak form factor simplified, typos corrected
Elastic x-ray scattering by neutral atoms: Outer–shell effects
Creators: name: Surzhykov, A.
name: Yerokhin, V.
name: Stöhlker, T.
name: Fritzsche, S.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
CsI-Silicon Particle detector for Heavy ions Orbiting in Storage rings (CsISiPHOS)
Creators: name: Najafi, M. A.
name: Dillmann, I.
name: Bosch, F.
name: Faestermann, T.
name: Gao, B.
name: Gernhäuser, R.
name: Kozhuharov, C.
name: Litvinov, S.
name: Litvinov, Y.
name: Maier, L.
name: Nolden, F.
name: Popp, U.
name: Sanjari, S.
name: Spillmann, U.
name: Steck, M.
name: Stöhlker, T.
name: Weick, H.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Thermal simulations of a C beam stripper for experiments at Spiral2
Creators: name: Tahir, N. A.
name: Kim, V.
name: Lamour, E.
name: Lomonosov, I.
name: Piriz, A. R.
name: Rozet, J.
name: Stöhlker, T.
name: Vernhet, D.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Construction and test of a detection system for forward emitted XUV photons
Creators: name: Winzen, D.
name: Hannen, V.
name: Ortjohann, H.
name: Vollbrecht, J.
name: Trittmaack, F.
name: Weinheimer, C.
name: Winters, D.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Rational foundation of GR in terms of statistical mechanic in the AdS/CFT framework
Creators: name: Silva, Pedro J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article, we work out the microscopic statistical foundation of the supergravity description of the simplest 1/2 BPS sector in the AdS(5)/CFT(4). Then, all the corresponding supergravity observables are related to thermodynamical observables, and General Relativity is understood as a mean-field theory. In particular, and as an example, the Superstar is studied and its thermodynamical properties clarified.
description: 13 pages, 6 eps figures, latex, some improvements introduced, reference added, typos corrected
Two body problem on a sphere in the presence of a uniform magnetic field
Creators: name: Balabanova, Nataliya A.
name: Montaldi, James
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70F05

description: We investigate the motion of one and two charged non-relativistic particles on a sphere in the presence of a magnetic field of uniform strength. For one particle, the motion is always circular, and determined by a simple relation between the velocity and the radius of motion. For two identical particles, interacting via a cotangent potential, we show there are two families of relative equilibria, called Type I and Type II. The Type I relative equilibria exist for all strengths of the magnetic field, while those of Type II exist only if the field is sufficiently strong. The same is true if the particles are of equal mass but opposite charge. We also determine the stability of the two families of relative equilibria.
description: 25 pages, 17 figs. This is a preprint of the Work accepted for publication in Regular and Chaotic Dynamics (2021). Copyright Pleiades Publishing Ltd, 2021
A study in lightly trimmed Levy processes
Creators: name: Fan, Yuguang
Publisher: name: The Australian National University
Year: 2015

description: In this dissertation, we study Levy processes with a bounded number of largest jumps removed. The resulting processes are termed lightly trimmed Levy processes. Motivated by the classical precedents in the random walks literature on trimmed sums, we aim to solve completely the domain of attraction problem for trimmed Levy processes at small times. We show that a Levy process is in the domain of attraction at small times, that is there exist appropriate norming and centring functions such that the centred and normed Levy process converges to an a.s. finite random variable as t goes down to 0, if and only if the centred and normed trimmed processes also converges. Despite its simple statement, the problem is rather complex. The necessity is treated first. Distributional representation formulae of trimmed processes at each fixed time t > 0 is derived. This allows us to write a lightly trimmed process as a mixture of a truncated Levy process with a Poisson number of ties randomised by an independent gamma random variable. Further, various trimming functionals are defined in the space of point measures as well as in the functional space. By a continuous mapping argument, we derive the functional convergence of the trimmed processes with respect to the Skorokhod topology by proving the continuity properties of the corresponding functionals. This solves the necessity. In the converse direction, we suppose the trimmed process, after appropriate centring and norming, has a limit at 0. Then the untrimmed Levy process is relatively compact. Light trimming does not have any effect, in the weak convergence, when the limit distribution is a normal or degenerate distribution. However, when the limit of the trimmed process is non-normal and non-degenerate, we show that the untrimmed process is in the domain of attraction of a stable law at 0. This leads to the interesting observation that each trimmed stable law possesses a domain of attraction at 0, which consists of all the lightly trimmed Levy processes.
The occupation of a box as a toy model for the seismic cycle of a fault
Creators: name: Gonzalez, Alvaro
name: Gomez, Javier B.
name: Pacheco, Amalio F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geophysics (physics.geo-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We illustrate how a simple statistical model can describe the quasiperiodic occurrence of large earthquakes. The model idealizes the loading of elastic energy in a seismic fault by the stochastic filling of a box. The emptying of the box after it is full is analogous to the generation of a large earthquake in which the fault relaxes after having been loaded to its failure threshold. The duration of the filling process is analogous to the seismic cycle, the time interval between two successive large earthquakes in a particular fault. The simplicity of the model enables us to derive the statistical distribution of its seismic cycle. We use this distribution to fit the series of earthquakes with magnitude around 6 that occurred at the Parkfield segment of the San Andreas fault in California. Using this fit, we estimate the probability of the next large earthquake at Parkfield and devise a simple forecasting strategy.
description: Final version of the published paper, with an erratum and an unpublished appendix with some proofs
Exact one-loop false vacuum decay rate
Creators: name: Guada, Victor
name: Nemevšek, Miha
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss an exact false vacuum decay rate at one loop for a real and complex scalar field in a quartic-quartic potential with two tree-level minima. The bounce solution is used to compute the functional determinant from both fluctuations. We obtain the finite product of eigenvalues and remove translational zero modes. The orbital modes are regularized with the zeta function and we end up with a complete renormalized decay rate. We derive simple expansions in the thin and thick wall limits and determine their validity.
description: 34 pages, 2 figures, ancillary Mathematica notebook, v2: title change, added figure, references and explanations, accepted for publication in Phys. Rev. D
Intrinsic Gap of the nu=5/2 Fractional Quantum Hall State
Creators: name: Dean, C. R.
name: Piot, B. A.
name: Hayden, P.
name: Sarma, S. Das
name: Gervais, G.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The fractional quantum Hall effect is observed at low field, in a regime where the cyclotron energy is smaller than the Coulomb interaction. The nu=5/2 excitation gap is measured to be 262+/-15 mK at ~2.6 T, in good agreement with previous measurements performed on samples with similar mobility, but with electronic density larger by a factor of two. The role of disorder on the nu=5/2 gap is examined. Comparison between experiment and theory indicates that a large discrepancy remains for the intrinsic gap extrapolated from the infinite mobility (zero disorder) limit. In contrast, no such large discrepancy is found for the nu=1/3 Laughlin state. The observation of the nu=5/2 state in the low-field regime implies that inclusion of non-perturbative Landau level mixing may be necessary to better understand the energetics of half-filled fractional quantum hall liquids.
description: 5 pages, 4 figures; typo corrected, comment expanded
Sensing electrochemical signals using a nitrogen-vacancy center in diamond
Creators: name: Dinani, Hossein T.
name: Muñoz, Enrique
name: Maze, Jeronimo R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chemical sensors with high sensitivity that can be used in extreme conditions and can be miniaturized are of high interest in science and industry. The Nitrogen-vacancy (NV) center in diamond is an ideal candidate as a nanosensor due to the long coherence time of its electron spin and its optical accessibility. In this theoretical work, we propose to use an NV center to detect electrochemical signals emerging from an electrolyte solution, thus obtaining a concentration sensor. For this purpose, we propose to use the inhomogeneous dephasing rate of the electron spin of the NV center ($1/T^*_2$) as a signal. We show that for a range of mean ionic concentrations in the bulk of the electrolyte solution, the electric field fluctuations produced by the diffusional fluctuations in the local concentration of ions, result in dephasing rates which can be inferred from free induction decay measurements. Moreover, we show that for a range of concentrations, the electric field generated at the position of the NV center can also be used to estimate the concentration of ions.
description: 17 pages, 7 figures, comments are welcome
Revisioning ‘The Visionaries’: A Critical Pedagogy of Place, Settler Implication, and Modes of Selected Remembrance & Erasure on Papaschase Cree Land (University of Alberta campus)
Creators: Margaret-Anne (M-A) Murphy
Publisher: name: University of Alberta Library
Year: 2020

This paper focuses on a critical reading of a monument on Papaschase Cree land (University of Alberta campus) entitled ‘The Visionaries’, which is of two white settler men - Rutherford, who was Alberta’s first premier and who introduced legislation for the campus, and Tory, who was the university’s first president. How does this monument work within memory-making to strategically erase and forget? In this case, forget the Papaschase Cree. And how can this erasure be made visible?

After situating this research in a brief history of the Papaschase Cree and Rutherford and Tory, I will analyze the differing ways that Indigenous geographies and settler colonial geographies interpret place and relationships with the land. A critical pedagogy of place, inspired by Jay Johnson, will be used to re-read the monument and look at questions of memory, representation, settler implication and responsibility. My hope is that this analysis can encourage people to examine relationships and geographies of power, place and privilege that envelope monuments and institutions, such as universities, and ask: Who is being remembered and forgotten, and why?
Optimal entanglement witnesses: a scalable data-driven approach
Creators: name: Frérot, Irénée
name: Roscilde, Tommaso
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Multipartite entanglement is the key resource allowing quantum devices to outperform their classical counterparts, and entanglement certification is fundamental to assess any quantum advantage. The only scalable certification scheme relies on entanglement witnessing, typically effective only for special entangled states. Here we focus on finite sets of measurements on quantum states (hereafter called quantum data); and we propose an approach which, given a particular spatial partitioning of the system of interest, can effectively ascertain whether or not the data set is compatible with a separable state. When compatibility is disproved, the approach produces the optimal entanglement witness for the quantum data at hand. Our approach is based on mapping separable states onto equilibrium classical field theories on a lattice; and on mapping the compatibility problem onto an inverse statistical problem, whose solution is reached in polynomial time whenever the classical field theory does not describe a glassy system. Our results pave the way for systematic entanglement certification in quantum devices, optimized with respect to the accessible observables.
description: published version
title: Emil Hitz-Gmür, 21. August 1894 - 3. September 1959
title: Gedenkfeier anlässlich der Bestattung, Montag, den 7. September 1959 im Krematorium in Zürich
titleType: Subtitle
Creators: name: Stern, Gustav
name: Heinrich, Max
name: Naegeli, Eduard
Publisher: name: Gedenkschriften-Verlag
Year: 1959
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Hitz-Gmür, Emil
subject: Zürich

description: Inhalt: Abdankungsansprache von Pfarrer Gustav Stern, Zürich-Wiedikon ; Ansprache von Max Heinrich, Prokurist der Firma Emil Hitz ; Ansprache von Eduard Naegeli, Präsident des FCZ
The 60 pc Environment of FRB 20180916B
Creators: name: Tendulkar, Shriharsh P.
name: de Paz, Armando Gil
name: Kirichenko, Aida Yu.
name: Hessels, Jason W. T.
name: Bhardwaj, Mohit
name: Ávila, Fernando
name: Bassa, Cees
name: Chawla, Pragya
name: Fonseca, Emmanuel
name: Kaspi, Victoria M.
name: Keimpema, Aard
name: Kirsten, Franz
name: Lazio, T. Joseph W.
name: Marcote, Benito
name: Masui, Kiyoshi
name: Nimmo, Kenzie
name: Paragi, Zsolt
name: Rahman, Mubdi
name: Payá, Daniel Reverte
name: Scholz, Paul
name: Stairs, Ingrid
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Fast Radio Burst FRB 20180916B in its host galaxy SDSS J015800.28+654253.0 at 149 Mpc is by far the closest-known FRB with a robust host galaxy association. The source also exhibits a 16.35-day period in its bursting. Here we present optical and infrared imaging as well as integral field spectroscopy observations of FRB 20180916B with the WFC3 camera on the Hubble Space Telescope and the MEGARA spectrograph on the 10.4-m Gran Telescopio Canarias. The 60-90 milliarcsecond (mas) resolution of the Hubble imaging, along with the previous 2.3-mas localization of FRB 20180916B, allow us to probe its environment with a 30-60 pc resolution. We constrain any point-like star-formation or HII region at the location of FRB 20180916B to have an H$α$ luminosity $L_\mathrm{Hα} \lesssim 10^{37}\,\mathrm{erg\,s^{-1}}$ and, correspondingly, constrain the local star-formation rate to be $\lesssim10^{-4}\,\mathrm{M_\odot\,yr^{-1}}$. The constraint on H$α$ suggests that possible stellar companions to FRB 20180916B should be of a cooler, less massive spectral type than O6V. FRB 20180916B is 250 pc away (in projected distance) from the brightest pixel of the nearest young stellar clump, which is $\sim380$\,pc in size (full-width at half maximum). With the typical projected velocities of pulsars, magnetars, or neutron stars in binaries (60-750 km s$^{-1}$), FRB 20180916B would need 800 kyr to 7 Myr to traverse the observed distance from its presumed birth site. This timescale is inconsistent with the active ages of magnetars ($\lesssim10$ kyr). Rather, the inferred age and observed separation are compatible with the ages of high-mass X-ray binaries and gamma-ray binaries, and their separations from the nearest OB associations.
description: Updated version: Updated Figure 2. 16 pages, 4 figures, 1 table. Published in ApJ Letters. Comments welcome
Development of a VUV-VIS-spectropolarimeter for target characterisation
Creators: name: Reiß, P.
name: Schmidt, P.
name: Knie, A.
name: Ozga, C.
name: Ehresmann, A.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Cosmological solutions for the Universe filled with matter in various states and gauge invariance
Creators: name: Shestakova, T. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore at phenomenological level a model of the Universe filled with various kinds of matter characterized by different equations of state. We show that introducing of each kind of matter is equivalent to a certain choice of a gauge condition, the gauge condition describing a medium with a given equation of state. The case of a particular interest is when one kind of matter (de Sitter false vacuum) dominates at the early stage of the Universe evolution while another kind (radiation, or ultrarelativistic gas) dominates at its later stage. We can, therefore, consider different asymptotic regimes for the early and later stages of the Universe existence. These regimes are described by solutions to the Wheeler - DeWitt equation for the Universe with matter in that given state, and, at the same time, in the "extended phase space" approach to quantum geometrodynamics the regimes are described by solutions to a Schrodinger equation associated with a choice of some gauge condition. It is supposed that, from the viewpoint of the observer located at the later stage of the Universe evolution, solutions for a Lambda-dominated early Universe would decay.
description: 8 pages, talk presented at the International Conference on Gravitation, Cosmology and Astrophysics dedicated to 90th anniversary of K. P. Staniukovich, Moscow, March 2006
Exact holographic RG flows in extended SUGRA
Creators: name: Anabalón, Andrés
name: Astefanesei, Dumitru
name: Choque, David
name: Gallerati, Antonio
name: Trigiante, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a family of exact planar hairy neutral black hole solutions in extended supergravity with Fayet-Iliopoulos (FI) terms. We consider a model where the magnetic part of FI sector vanishes and obtain the superpotential at finite temperature in analytic form. Then, we discuss the thermodynamics and some holographic properties of these solutions. We regularize the action by two different methods, one with gravitational and scalar counterterms and the other using the thermal superpotential as a counterterm, and compute the holographic stress tensor. We also construct the $c$-function of the corresponding RG flow and obtain an exact holographic $β$-function for this model.
description: 28 pages, 4 figures
Küng, Hans, van Ess, Josef, von Stietencron, Heinrich, Bechert, Heinz
Creators: name: Gensichen, Hans-Werner
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 34 Nr. 4 (1985): Ökumenische Rundschau, Band 34, Heft 4
Form Factors of the Nucleon Axial Current
Creators: name: Chen, Chen
name: Fischer, Christian S.
name: Roberts, Craig D.
name: Segovia, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A symmetry-preserving Poincaré-covariant quark+diquark Faddeev equation treatment of the nucleon is used to deliver parameter-free predictions for the nucleon's axial and induced pseudoscalar form factors, $G_A$ and $G_P$, respectively. The result for $G_A$ can reliably be represented by a dipole form factor characterised by an axial charge $g_A=G_A(0)=1.25(3)$ and a mass-scale $M_A = 1.23(3) m_N$, where $m_N$ is the nucleon mass; and regarding $G_P$, the induced pseudoscalar charge $g_p^\ast = 8.80(23)$, the ratio $g_p^\ast/g_A = 7.04(22)$, and the pion pole dominance Ansatz is found to provide a reliable estimate of the directly computed result. The ratio of flavour-separated quark axial charges is also calculated: $g_A^d/g_A^u=-0.16(2)$. This value expresses a marked suppression of the size of the $d$-quark component relative to that found in nonrelativistic quark models and owes to the presence of strong diquark correlations in the nucleon Faddeev wave function -- both scalar and axial-vector, with the scalar diquark being dominant. The predicted form for $G_A$ should provide a sound foundation for analyses of the neutrino-nucleus and antineutrino-nucleus cross-sections that are relevant to modern accelerator neutrino experiments.
description: 8 pages, 6 figures, 2 tables. Accepted for publication in Phys. Lett. B