cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dissipative dynamics of a quantum two-state system in presence of nonequilibrium quantum noise
Creators: name: Mann, Niklas
name: Brüggemann, Jochen
name: Thorwart, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the real-time dynamics of a quantum two-state system in the presence of nonequilibrium quantum fluctuations. The latter are generated by a coupling of the two-state system to a single electronic level of a quantum dot which carries a nonequilibrium tunneling current. We restrict to the sequential tunneling regime and calculate the dynamics of the two-state system, of the dot population, and of the nonequilibrium charge current on the basis of a diagrammatic perturbative method valid for a weak tunneling coupling. We find a nontrivial dependence of the relaxation and dephasing rates of the two-state system due to the nonequilibrium fluctuations which is directly linked to the structure of the unperturbed central system. In addition, a Heisenberg-Langevin-equation of motion allows us to calculate the correlation function of the nonequilibrium fluctuations. By this, we obtain a generalized nonequilibrium fluctuation relation which includes the equilibrium fluctuation-dissipation theorem. A straightforward extension to the case with a time-periodic ac voltage is shown.
Physics at a Higgs Factory
Creators: name: Reece, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I give an overview of the physics potential at possible future $e^+ e^-$ colliders, including the ILC, FCC-ee, and CEPC. The goal is to explain some of the measurements that can be done in the context of electroweak precision tests and Higgs couplings, to compare some of the options under consideration, and to put the measurements in context by summarizing their implications for some new physics scenarios. This is a writeup of a plenary talk at the Hong Kong University of Science and Technology Jockey Club Institute for Advanced Study Program on High Energy Physics Conference, January 18--21, 2016. Some previously unpublished electroweak precision results for FCC-ee and CEPC are included.
description: proceedings of Hong Kong IAS conference; includes some new plots of future collider EWPT
Note on integrability of certain homogeneous Hamiltonian systems
Creators: name: Szumiński, Wojciech
name: Maciejewski, A. J.
name: Przybylska, Maria
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we investigate a class of natural Hamiltonian systems with two degrees of freedom. The kinetic energy depends on coordinates but the system is homogeneous. Thanks to this property it admits, in a general case, a particular solution. Using this solution we derive necessary conditions for the integrability of such systems investigating differential Galois group of variational equations.
Impact of Mass Generation for Simplified Dark Matter Models
Creators: name: Bell, Nicole F.
name: Cai, Yi
name: Leane, Rebecca K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the simplified dark matter models commonly studied, the mass generation mechanism for the dark fields is not typically specified. We demonstrate that the dark matter interaction types, and hence the annihilation processes relevant for relic density and indirect detection, are strongly dictated by the mass generation mechanism chosen for the dark sector particles, and the requirement of gauge invariance. We focus on the class of models in which fermionic dark matter couples to a spin-1 vector or axial-vector mediator. However, in order to generate dark sector mass terms, it is necessary in most cases to introduce a dark Higgs field and thus a spin-0 scalar mediator will also be present. In the case that all the dark sector fields gain masses via coupling to a single dark sector Higgs field, it is mandatory that the axial-vector coupling of the spin-1 mediator to the dark matter is non-zero; the vector coupling may also be present depending on the charge assignments. For all other mass generation options, only pure vector couplings between the spin-1 mediator and the dark matter are allowed. If these coupling restrictions are not obeyed, unphysical results may be obtained such as a violation of unitarity at high energies. These two-mediator scenarios lead to important phenomenology that does not arise in single mediator models. We survey two-mediator dark matter models which contain both vector and scalar mediators, and explore their relic density and indirect detection phenomenology.
description: 25 pages, 8 figures
Dynamics of students' epistemological framing in group problem solving
Creators: name: Nguyen, Hai D
name: Chari, Deepa N
name: Sayre, Eleanor C
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Many studies have investigated students' epistemological framing when solving physics problems. Framing supports students' problem solving as they decide what knowledge to employ and the necessary steps to solve the problem. Students may frame the same problem differently and take alternate paths to a correct solution. When students work in group settings, they share and discuss their framing to decide how to proceed in problem solving as a whole group. In this study, we investigate how groups of students negotiate their framing and frame shifts in group problem solving.
description: 8 pages, submitted to European Journal of Physics
Vorwort – Zum 100. Band der GERMANIA
Creators: name: Bánffy, Eszter
name: Hofmann, Kerstin P.
name: Gramsch, Alexander
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Polaron model of pseudogap state in quasi-one-dimentional systems
Creators: name: Orlov, Yu. S.
name: Dudnikov, V. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A brief overview of the basic concepts and problems of the physics of quasi-one-dimensional compounds is done. Consistent theoretical description of the so-called pseudogap state remains the main problem. A simplified model of the pseudogap state, based on the picture of small polarons formation in the framework of cluster perturbation theory is considered.
The imprint of exoplanet formation history on observable present-day spectra of hot Jupiters
Creators: name: Mordasini, Christoph
name: van Boekel, Roy
name: Mollière, Paul
name: Henning, Thomas
name: Benneke, Björn
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The composition of a planet's atmosphere is determined by its formation, evolution, and present-day insolation. A planet's spectrum therefore may hold clues on its origins. We present a "chain" of models, linking the formation of a planet to its observable present-day spectrum. The chain links include (1) the planet's formation and migration, (2) its long-term thermodynamic evolution, (3) a variety of disk chemistry models, (4) a non-gray atmospheric model, and (5) a radiometric model to obtain simulated spectroscopic observations with JWST and ARIEL. In our standard chemistry model the inner disk is depleted in refractory carbon as in the Solar System and in white dwarfs polluted by extrasolar planetesimals. Our main findings are: (1) Envelope enrichment by planetesimal impacts during formation dominates the final planetary atmospheric composition of hot Jupiters. We investigate two, under this finding, prototypical formation pathways: a formation inside or outside the water iceline, called "dry" and "wet" planets, respectively. (2) Both the "dry" and "wet" planets are oxygen-rich (C/O<1) due to the oxygen-rich nature of the solid building blocks. The "dry" planet's C/O ratio is <0.2 for standard carbon depletion, while the "wet" planet has typical C/O values between 0.1 and 0.5 depending mainly on the clathrate formation efficiency. Only non-standard disk chemistries without carbon depletion lead to carbon-rich C/O ratios >1 for the "dry" planet. (3) While we consistently find C/O ratios <1, they still vary significantly. To link a formation history to a specific C/O, a better understanding of the disk chemistry is thus needed.
description: 32 pages, 18 figures. Accepted for publication in ApJ
Efficient Formation of Massive Galaxies at Cosmic Dawn by Feedback-Free Starbursts
Creators: name: Dekel, Avishai
name: Sarkar, Kartick S.
name: Birnboim, Yuval
name: Mandelker, Nir
name: Li, Zhaozhou
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: JWST observations indicate a surprising excess of luminous galaxies at $z\sim 10$ and above, consistent with efficient conversion of the accreted gas into stars, unlike the suppression of star formation by feedback at later times. We show that the high densities and low metallicities at this epoch {\it guarantee} a high star-formation efficiency (SFE) in the most massive dark-matter haloes. Feedback-free starbursts (FFBs) occur when the free-fall time is shorter than $\sim 1$ Myr, below the time for low-metallicity massive stars to develop winds and supernovae. This corresponds to a characteristic density of $\sim 3\times 10^3$cm$^{-3}$. A comparable threshold density permits a starburst by allowing cooling to star-forming temperatures in a free-fall time. The galaxies within $\sim 10^{11} M_\odot$ haloes at $z \sim 10$ are expected to have FFB densities. The halo masses allow efficient gas supply by cold streams in a halo crossing time $\sim 80$ Myr. The FFBs gradually turn all the accreted gas into stars in clusters of $\sim 10^{4-7} M_\odot$ within galaxies that are rotating discs or shells. The starbursting clouds are insensitive to radiative feedback and are shielded against feedback from earlier stars. We predict high SFE above thresholds in redshift and halo mass, where the density is $10^{3-4}$cm$^{-3}$. The $z\sim 10$ haloes of $\sim 10^{10.8} M_\odot$ are predicted to host galaxies of $\sim 10^{10} M_\odot$ with SFR $\sim 65 M_\odot$ yr$^{-1}$ and sub-kpc sizes. The metallicity is $\leq 0.1 Z_\odot$ with little gas, dust, outflows and hot circumgalactic gas, allowing a top-heavy IMF but not requiring it. The compact galaxies with thousands of young FFB clusters may have implications on reionization, black-hole growth and globular clusters.
description: 20 pages, 7 figures
Moneta mirabilis
Creators: name: Gao, Cai-Xia
name: Li, Shu-Qiang
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Moneta
Moneta mirabilis

description: Moneta mirabilis (Böesenberg & Strand, 1906) Hyptimorpha mirabilis Bösenberg & Strand, 1906: 136, pl. 11, fig. 227. Moneta mirabilis Zhu, 1998: 281, figs 189A–D; Song et al., 1999: 123, figs 64H, M. Material examined. China, Yunnan, 3♂, 3♀, Xishuangbanna, Menglun, Anogeissus acuminata plantation (about 20 years) (21º53.993'N, 101º16.810'E), 19 August 2007, Guo Zheng leg.; 3♂, 2♀, Menglun Nature Reserve, secondary tropical seasonal moist forest (21º54.390'N, 101º16.811'E), 10 July 2007, Guo Zheng leg. Distribution. China (Taiwan, Yunnan); Japan, Korea, Laos, Malaysia, Taiwan.
description: Published as part of Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, pp. 1-135 in Zoological Systematics 39 (1) on page 56, DOI: 10.11865/zs20140101, http://zenodo.org/record/7475365
Observing Topological Invariants Using Quantum Walk in Superconducting Circuits
Creators: name: Flurin, Emmanuel
name: Ramasesh, Vinay V.
name: Hacohen-Gourgy, Shay
name: Martin, Leigh S.
name: Yao, Norman Y.
name: Siddiqi, Irfan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The direct measurement of topological invariants in both engineered and naturally occurring quantum materials is a key step in classifying quantum phases of matter. Here we motivate a toolbox based on time-dependent quantum walks as a method to digitally simulate single-particle topological band structures. Using a superconducting qubit dispersively coupled to a microwave cavity, we implement two classes of split-step quantum walks and directly measure the topological invariant (winding number) associated with each. The measurement relies upon interference between two components of a cavity Schrödinger cat state and highlights a novel refocusing technique which allows for the direct implementation of a digital version of Bloch oscillations. Our scheme can readily be extended to higher dimensions, whereby quantum walk-based simulations can probe topological phases ranging from the quantum spin Hall effect to the Hopf insulator.
description: 5 pages, 4 figures
Decompositions of Grothendieck Polynomials
Creators: name: Pechenik, Oliver
name: Searles, Dominic
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E05 (Primary), 14M15 (Secondary)

description: We investigate the longstanding problem of finding a combinatorial rule for the Schubert structure constants in the $K$-theory of flag varieties (in type $A$). The Grothendieck polynomials of A. Lascoux-M.-P. Schützenberger (1982) serve as polynomial representatives for $K$-theoretic Schubert classes; however no positive rule for their multiplication is known outside the Grassmannian case. We contribute a new basis for polynomials, give a positive combinatorial formula for the expansion of Grothendieck polynomials in these glide polynomials, and provide a positive combinatorial Littlewood-Richardson rule for expanding a product of Grothendieck polynomials in the glide basis. Our techniques easily extend to the $β$-Grothendieck polynomials of S. Fomin-A. Kirillov (1994), representing classes in connective $K$-theory, and we state our results in this more general context. A specialization of the glide basis recovers the fundamental slide polynomials of S. Assaf-D. Searles (2016), which play an analogous role with respect to the Chow ring of flag varieties. Additionally, the stable limits of another specialization of glide polynomials are T. Lam-P. Pylyavskyy's (2007) basis of multi-fundamental quasisymmetric functions, $K$-theoretic analogues of I. Gessel's (1984) fundamental quasisymmetric functions. Those glide polynomials that are themselves quasisymmetric are truncations of multi-fundamental quasisymmetric functions and form a basis of quasisymmetric polynomials.
description: 21 pages
Recommandations pour les publications de la Römisch-Germanische Kommission
Creators: name: Die Redaktion
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Guidelines for Publications of the Römisch-Germanische Kommission
Creators: name: Die Redaktion
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Dimension reduction for the full Navier-Stokes-Fourier system
Creators: name: Březina, Jan
name: Kreml, Ondřej
name: Mácha, Václav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: It is well known that the full Navier-Stokes-Fourier system does not possess a strong solution in three dimensions which causes problems in applications. However, when modeling the flow of a fluid in a thin long pipe, the influence of the cross section can be neglected and the flow is basically one-dimensional. This allows us to deal with strong solutions which are more convenient for numerical computations. The goal of this paper is to provide a rigorous justification of this approach. Namely, we prove that any suitable weak solution to the three-dimensional NSF system tends to a strong solution to the one-dimensional system as the thickness of the pipe tends to zero.
description: arXiv admin note: text overlap with arXiv:1111.4256 by other authors
Hinweise für Publikationen der Römisch-Germanischen Kommission
Creators: name: Die Redaktion
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Neutron-Capture Element Abundances in Magellanic Cloud Planetary Nebulae
Creators: name: Mashburn, A. L.
name: Sterling, N. C.
name: Madonna, S.
name: Dinerstein, H. L.
name: Roederer, I. U.
name: Geballe, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present near-infrared spectra of ten planetary nebulae (PNe) in the Large and Small Magellanic Clouds (LMC and SMC), acquired with the FIRE and GNIRS spectrometers on the 6.5-m Baade and 8.1-m Gemini South Telescopes, respectively. We detect Se and/or Kr emission lines in eight of these objects, the first detections of n-capture elements in Magellanic Cloud PNe. Our abundance analysis shows large s-process enrichments of Kr (0.6-1.3 dex) in the six PNe in which it was detected, and Se is enriched by 0.5-0.9 dex in five objects. We also estimate upper limits to Rb and Cd abundances in these objects. Our abundance results for the LMC are consistent with the hypothesis that PNe with 2--3 M$_{\odot}$ progenitors dominate the bright end of the PN luminosity function in young gas-rich galaxies. We find no significant correlations between s-process enrichments and other elemental abundances, central star temperature, or progenitor mass, though this is likely due to our small sample size. We determine S abundances from our spectra and find that [S/H] agrees with [Ar/H] to within 0.2 dex for most objects, but is lower than [O/H] by 0.2-0.4 dex in some PNe, possibly due to O enrichment via third dredge-up. Our results demonstrate that n-capture elements can be detected in PNe belonging to nearby galaxies with ground-based telescopes, allowing s-process enrichments to be studied in PN populations with well-determined distances.
description: 16 pages, 1 figure, 4 tables, accepted for publication in ApJ Letters
David Graeber / David Wengrow, The Dawn of Everything. A New History of Humanity
Creators: name: Jung, Matthias
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: David Graeber / David Wengrow, The Dawn of Everything. A New History of Humanity. Farrar, Straus and Giroux, New York 2021. $ 35,–. ISBN 978-0-374-15735-7. 704 Seiten (dt. Ausgabe: Anfänge. Eine neue Geschichte der Menschheit. Klett-Cotta, Stuttgart 2022. € 28,–. ISBN 978-3-608-98508-5. 667 Seiten)
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
The Early Light Curve of a Type Ia Supernova 2021hpr in NGC 3147: Progenitor Constraints with the Companion Interaction Model
Creators: name: Lim, Gu
name: Im, Myungshin
name: Paek, Gregory S. H.
name: Yoon, Sung-Chul
name: Choi, Changsu
name: Kim, Sophia
name: Wheeler, J. Craig
name: Thomas, Benjamin P.
name: Vinkó, Jozsef
name: Kim, Dohyeong
name: Seo, Jinguk
name: Kang, Wonseok
name: Kim, Taewoo
name: Sung, Hyun-Il
name: Kim, Yonggi
name: Yoon, Joh-Na
name: Kim, Haeun
name: Kim, Jeongmook
name: Bae, Hana
name: Ehgamberdiev, Shuhrat
name: Burhonov, Otabek
name: Mirzaqulov, Davron
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The progenitor system of Type Ia supernovae (SNe Ia) is expected to be a close binary system of a carbon/oxygen white dwarf (WD) and a non-degenerate star or another WD. Here, we present results from a high-cadence monitoring observation of SN 2021hpr in a spiral galaxy, NGC 3147, and constraints on the progenitor system based on its early multi-color light curve data. First, we classify SN 2021hpr as a normal SN Ia from its long-term photometric and spectroscopic data. More interestingly, we found a significant "early excess" in the light curve over a simple power-law $\sim t^{2}$ evolution. The early light curve evolves from blue to red and blue during the first week. To explain this, we fitted the early part of $BVRI$-band light curves with a two-component model of the ejecta-companion interaction and a simple power-law model. The early excess and its color can be explained by shock cooling emission due to a companion star having a radius of $8.84\pm0.58$$R_{\odot}$. We also examined HST pre-explosion images with no detection of a progenitor candidate, consistent with the above result. However, we could not detect signs of a significant amount of the stripped mass from a non-degenerate companion star ($\lesssim0.003\,M_{\odot}$ for H$α$ emission). The early excess light in the multi-band light curve supports a non-degenerate companion in the progenitor system of SN 2021hpr. At the same time, the non-detection of emission lines opens a door for other methods to explain this event.
description: 26 pages, 13 figures + appendix, Accepted for publication in ApJ
Superconductivity Induced by High Pressure in Weyl Semimetal TaP
Creators: name: Li, Yufeng
name: Zhou, Yonghui
name: Guo, Zhaopeng
name: Chen, Xuliang
name: Lu, Pengchao
name: Wang, Xuefei
name: An, Chao
name: Zhou, Ying
name: Xing, Jie
name: Du, Guan
name: Zhu, Xiyu
name: Yang, Huan
name: Sun, Jian
name: Yang, Zhaorong
name: Zhang, Yuheng
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Weyl semimetal defines a material with three dimensional Dirac cones which appear in pair due to the breaking of spatial inversion or time reversal symmetry. Superconductivity is the state of quantum condensation of paired electrons. Turning a Weyl semimetal into superconducting state is very important in having some unprecedented discoveries. In this work, by doing resistive measurements on a recently recognized Weyl semimetal TaP under pressure up to about 100 GPa, we observe superconductivity at about 70 GPa. The superconductivity retains when the pressure is released. The systematic evolutions of resistivity and magnetoresistance with pressure are well interpreted by the relative shift between the chemical potential and paired Weyl points. Calculations based on the density functional theory also illustrate the structure transition at about 70GPa, the phase at higher pressure may host superconductivity. Our discovery of superconductivity in TaP by pressure will stimulate further study on superconductivity in Weyl semimetals.
description: 27 Pages 8 Figures (including Supplementary Information)
title: ATAMM Multicomputer System Design
Creators: name: Tymchyshyn, William Robert
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1988

description: The Algorithm To Architecture Mapping Model, or ATAMM, is a graph theoretic design methodology that has been created to resolve design and performance issues involved with concurrent processing. Petri-net marked graphs are used to represent the computational environment.

This thesis describes the development of a multicomputer system which will operate within the bounds specified by the ATAMM model. The system is first designed and implemented using the framework of standard multicomputer design theory. A validation is then performed by the comparison of the system's computational performance to results predicted by ATAMM. This validation is shown to be successful for three algorithm graphs that represent different possible data flow structures.
Retrospective Causal Inference with Machine Learning Ensembles: An Application to Anti-Recidivism Policies in Colombia
Creators: name: Samii, Cyrus
name: Paler, Laura
name: Daly, Sarah Zukerman
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We present new methods to estimate causal effects retrospectively from micro data with the assistance of a machine learning ensemble. This approach overcomes two important limitations in conventional methods like regression modeling or matching: (i) ambiguity about the pertinent retrospective counterfactuals and (ii) potential misspecification, overfitting, and otherwise bias-prone or inefficient use of a large identifying covariate set in the estimation of causal effects. Our method targets the analysis toward a well defined ``retrospective intervention effect'' (RIE) based on hypothetical population interventions and applies a machine learning ensemble that allows data to guide us, in a controlled fashion, on how to use a large identifying covariate set. We illustrate with an analysis of policy options for reducing ex-combatant recidivism in Colombia.
Uroš Matić (Hrsg.), Beautiful Bodies. Gender and Corporeal Aesthetics in the Past. Oxbow Books, Oxford, Philadelphia 2022
Creators: name: Kerk, Lukas
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Uroš Matić (Hrsg.), Beautiful Bodies. Gender and Corporeal Aesthetics in the Past. Oxbow Books, Oxford, Philadelphia 2022. £ 40,–. ISBN 978-1-78925-771-7 (Paperback). doi: https://doi.org/10.2307/j.ctv25wxc9n. xi + 305 Seiten mit zahlreichen Schwarz-Weiß-Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Symmetry-resolved entanglement in critical non-Hermitian systems
Creators: name: Fossati, Michele
name: Ares, Filiberto
name: Calabrese, Pasquale
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of entanglement in the symmetry sectors of a theory has recently attracted a lot of attention since it provides better understanding of some aspects of quantum many-body systems. In this paper, we extend this analysis to the case of non-Hermitian models, in which the reduced density matrix $ρ_A$ may be non-positive definite and the entanglement entropy negative or even complex. Here we examine in detail the symmetry-resolved entanglement in the ground state of the non-Hermitian Su-Schrieffer-Heeger chain at the critical point, a model that preserves particle number and whose scaling limit is a $bc$-ghost non-unitary CFT. By combining bosonization techniques in the field theory and exact lattice numerical calculations, we analytically derive the charged moments of $ρ_A$ and $|ρ_A|$. From them, we can understand the origin of the non-positiveness of $ρ_A$ and naturally define a positive-definite reduced density matrix in each charge sector, which gives a well-defined symmetry-resolved entanglement entropy. As byproduct, we also obtain the analytical distribution of the critical entanglement spectrum.
description: 19 pages, 5 figures. Minor clarifications, typos corrected . Final version published in Phys. Rev. B
Roland Färber / Fabian Link (eds), Die Altertumswissenschaften an der Universität Frankfurt 1914–1950. Studien und Dokumente
Creators: name: Roche, Helen
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension: Roland Färber / Fabian Link (eds), Die Altertumswissenschaften an der Universität Frankfurt 1914–1950. Studien und Dokumente. Schwabe Verlag, Basel 2019. CHF 68.00. ISBN 978-3-7965-4039-4 (Print). CHF 54.40. ISBN 978-3-7965-4040-0 (E-book). 373 pages with 78 b/w figures and 1 colour figure
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Henner von Hesberg / Jürgen Kunow / Thomas Otten (Hrsg.), Römerstädte am Rhein. Strategien archäologischer Erzählung
Creators: name: Schreg, Rainer
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Henner von Hesberg / Jürgen Kunow / Thomas Otten (Hrsg.), Römerstädte am Rhein. Strategien archäologischer Erzählung. Archäologisches Gedächtnis der Städte Band 4. Schriftenreihe des Arbeitskreises der Bodendenkmalpflege der Fritz Thyssen Stiftung. Schnell & Steiner, Regensburg 2021. € 35,–. ISBN 978-3-7954-3644-5. 256 Seiten
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Extended Ly$α$ emission around quasars with eclipsing damped Ly$α$ systems
Creators: name: Fathivavsari, Hassan
name: Petitjean, Patrick
name: Noterdaeme, Pasquier
name: Pâris, Isabelle
name: Finley, Hayley
name: López, Sebastian
name: Srianand, Raghunathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present spectroscopic observations of six high redshift ($z_{\rm em}$ $>$ 2) quasars, which have been selected for their Lyman $α$ (Ly$α$) emission region being only partially covered by a strong proximate ($z_{\rm abs}$ $\sim$ $z_{\rm em}$) coronagraphic damped Ly$α$ system (DLA). We detected spatially extended Ly$α$ emission envelopes surrounding these six quasars, with projected spatial extent in the range 26 $\le$ $d_{\rm Lyα}$ $\le$ 51 kpc. No correlation is found between the quasar ionizing luminosity and the Ly$α$ luminosity of their extended envelopes. This could be related to the limited covering factor of the extended gas and/or due to the AGN being obscured in other directions than towards the observer. Indeed, we find a strong correlation between the luminosity of the envelope and its spatial extent, which suggests that the envelopes are probably ionized by the AGN. The metallicity of the coronagraphic DLAs is low and varies in the range $-$1.75 $
description: Accepted for publication in MNRAS, 27 pages, 19 figures, 6 tables
Moneta spinigera O. Pickard-Cambridge 1871
Creators: name: Gao, Cai-Xia
name: Li, Shu-Qiang
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Moneta
Moneta spinigera

description: Moneta spinigera O. P.- Cambridge, 1870 Moneta spinigera O. P.- Cambridge, 1870: 736, pl. 44, fig. 5. Episinus spiniger Song, 1987: 125, fig. 86; Chen & Zhang, 1991: 148, figs 143.1–4. Moneta spiniger Zhu, 1998: 273, figs 182A–D; Song et al., 1999: 123, figs 64I–J, N. Material examined. China, Yunnan, 1♂, 1♀, Xishuangbanna, Menglun, Paramichelia baillonii plantation (about 20 years) (21º53.823'N, 101º17.072'E), 18 August 2007, Guo Zheng leg.; 1♂, Menglun Nature Reserve, secondary tropical seasonal moist forest (21º54.718'N, 101º16.940'E), 27 July 2007, Guo Zheng leg. Distribution. Africa to China (Fujian, Taiwan, Yunnan, Zhejiang).
description: Published as part of Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, pp. 1-135 in Zoological Systematics 39 (1) on page 56, DOI: 10.11865/zs20140101, http://zenodo.org/record/7475365
description: {"references": ["Cambridge, O. P. -. 1870. On some new genera and species of Araneida. Proceedings of the Zoological Society of London, 1870: 728 - 747."]}
Christoph Willms, Prähistorische Grabfunde aus Frankfurt am Main. Eine Bestandsaufnahme von den Anfängen bis zum Zweiten Weltkrieg
Creators: name: Reymann, Andy
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Christoph Willms, Prähistorische Grabfunde aus Frankfurt am Main. Eine Bestandsaufnahme von den Anfängen bis zum Zweiten Weltkrieg. Bearbeitet von Michael Overbeck. Schriften des Archäologischen Museums Frankfurt Band 31. Verlag Schnell & Steiner, Regensburg 2021. € 44,95. ISBN 978-3-7954-3433-5 (Hardcover). 328 Seiten mit 109 Farb- und 72 Schwarz-Weiß-Abbildung sowie 76 Tafeln
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Magnus effect on a Majorana zero-mode
Creators: name: Lemut, G.
name: Pacholski, M. J.
name: Plugge, S.
name: Beenakker, C. W. J.
name: Adagideli, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A supercurrent on the proximitized surface of a topological insulator can cause a delocalization transition of a Majorana fermion bound to a vortex core as a zero-mode. Here we study the dynamics of the deconfinement, as a manifestation of the Magnus effect (the coupling of the superflow to the velocity field in the vortex). The initial acceleration of the Majorana fermion is $\pm 2v_{\rm F}^2 K/\hbar$, perpendicular to the Cooper pair momentum $K$, for a $\pm 2π$ winding of the superconducting phase around the vortex. The quasiparticle escapes with a constant velocity from the vortex core, which we calculate in a semiclassical approximation and compare with computer simulations.
description: 8 pages, 9 figures
Fritz Jürgens / Ulrich Müller (eds), Archäologie der Moderne. Standpunkte und Perspektiven
Creators: name: Legendre, Jean-Pierre
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Fritz Jürgens / Ulrich Müller (eds), Archäologie der Moderne. Standpunkte und Perspektiven. Rudolf Habelt Verlag, Bonn, 2020. € 50.00. ISBN 978-3-7749-4282-0. 500 pages with 226 illustrations, 9 maps, 10 tables, and 10 plates
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
NGC 1068: No change in the mid-IR torus structure despite X-ray variability
Creators: name: López-Gonzaga, N.
name: Asmus, D.
name: Bauer, F. E.
name: Tristram, K. R. W.
name: Burtscher, L.
name: Marinucci, A.
name: Matt, G.
name: Harrison, F. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. Recent NuSTAR observations revealed a somewhat unexpected increase in the X-ray flux of the nucleus of NGC 1068. We expect the infrared emission of the dusty torus to react on the intrinsic changes of the accretion disk. Aims. We aim to investigate the origin of the X-ray variation by investigating the response of the mid-infrared environment. Methods. We obtained single-aperture and interferometric mid-infrared measurements and directly compared the measurements observed before and immediately after the X-ray variations. The average correlated and single-aperture fluxes as well as the differential phases were directly compared to detect a possible change in the structure of the nuclear emission on scales of $\sim$ 2 pc. Results. The flux densities and differential phases of the observations before and during the X-ray variation show no significant change over a period of ten years. Possible minor variations in the infrared emission are $\lesssim$ 8 %. Conclusions. Our results suggest that the mid-infrared environment of NGC 1068 has remained unchanged for a decade. The recent transient change in the X-rays did not cause a significant variation in the infrared emission. This independent study supports previous conclusions that stated that the X-ray variation detected by NuSTAR observations is due to X-ray emission piercing through a patchy section of the dusty region.
description: 6 pages, 5 figures, 3 tables. Accepted for publication on A&A
Rainer Atzbach / Christian Ottersbach / Claus Sørensen / Jan Kock / Dorthe Wille-Jørgensen (Hrsg.), Castles and Fortifications of the Reformation Period. Burgen und Befestigungen der Reformationszeit
Creators: name: Herrmann, Christofer
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Rainer Atzbach / Christian Ottersbach / Claus Sørensen / Jan Kock / Dorthe Wille-Jørgensen (Hrsg.), Castles and Fortifications of the Reformation Period. Burgen und Befestigungen der Reformationszeit. Castles of the North Band 3. Dr. Rudolf Habelt GmbH, Bonn 2020. € 60,–. ISBN 978-3-7749-4210-3. IV + 360 Seiten
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
Emerging interdependence between stock values during financial crashes
Creators: name: Rocchi, Jacopo
name: Tsui, Enoch Yan Lok
name: Saad, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: To identify emerging interdependencies between traded stocks we investigate the behavior of the stocks of FTSE 100 companies in the period 2000-2015, by looking at daily stock values. Exploiting the power of information theoretical measures to extract direct influences between multiple time series, we compute the information flow across stock values to identify several different regimes. While small information flows is detected in most of the period, a dramatically different situation occurs in the proximity of global financial crises, where stock values exhibit strong and substantial interdependence for a prolonged period. This behavior is consistent with what one would generally expect from a complex system near criticality in physical systems, showing the long lasting effects of crashes on stock markets.
Matthias Toplak / Hanne Østhus / Rudolf Simek (eds), Viking-Age Slavery
Creators: name: Sindbæk, Søren M.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Matthias Toplak / Hanne Østhus / Rudolf Simek (eds), Viking-Age Slavery. Studia Medievalia Septentrionalia volume 29. Fassbaender Verlag, Wien 2021. € 29.90. ISBN 978-3-902575-95-1. vi + 226 pages with numerous illustrations
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)
CP Asymmetry in $τ\to Kπν_τ $ within Non-Minimal $SU(5)$
Creators: name: Faisel, Gaber
name: Khalil, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Direct CP asymmetry in semi-leptonic $τ$ decays is an intriguing hint for new physics beyond the standard model. We investigate the CP asymmetry in $τ^- \to K_S^0 π^- ν_τ$ and $τ^- \to K^- π^0 ν_τ$ decays in non-minimal SU(5) model, with 45-dimensional Higgs multiplet. We show that the associate color-triplet scalar is a natural example of a scalar leptoquark that mediates the transition $τ\to s \bar u ν_τ$, and accounts for the 2.8 $σ$ discrepancy between the $A_{\rm CP}(τ^- \to K_S^0 π^- ν_τ)$ experimental results and the SM expectation. Furthermore, it predicts a sizable $A_{\rm CP}(τ^- \to K^- π^0 ν_τ)$, of order ${\cal O}(10^{-3})$, which can be accessible in current and near future experiments.
description: 10 pages, 3 figures
Investigating the free-floating planet mass by Euclid observations
Creators: name: Hamolli, Lindita
name: Hafizi, Mimoza
name: De Paolis, Francesco
name: Nucita, Achille A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The detection of anomalies in gravitational microlensing events is nowadays one of the main goals among the microlensing community. In the case of single-lens events, these anomalies can be caused by the finite source effects, that is when the source disk size is not negligible, and by the Earth rotation around the Sun (the so-called parallax effect). The finite source and parallax effects may help to define the mass of the lens, uniquely. Free-floating planets (FFPs) are extremely dim objects, and gravitational microlensing provides at present the exclusive method to investigate these bodies. In this work, making use of a synthetic population algorithm, we study the possibility of detecting the finite source and parallax effects in simulated microlensing events caused by FFPs towards the Galactic bulge, taking into consideration the capabilities of the space-based Euclid telescope. We find a significant efficiency for detecting the parallax effect in microlensing events with detectable finite source effect, that turns out to be about 51% for mass function index .
description: Astrophysics and Space Science 2016
Quantum-optimal detection of one-versus-two incoherent sources with arbitrary separation
Creators: name: Lu, Xiao-Ming
name: Nair, Ranjith
name: Tsang, Mankei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the fundamental resolution of incoherent optical point sources from the perspective of a quantum detection problem: deciding whether the optical field on the image plane is generated by one source or two weaker sources with arbitrary separation. We investigate the detection performances of two measurement methods recently proposed by us to enhance the estimation of the separation. For the detection problem, we show that the method of binary spatial-mode demultiplexing is quantum-optimal for all values of separations, while the method of image-inversion interferometry is near-optimal for sub-Rayleigh separations. Unlike the proposal by Helstrom, our schemes do not require the separation to be given and can offer that information as a bonus in the event of a successful detection. For comparison, we also demonstrate the supremacy of our schemes over direct imaging for sub-Rayleigh separations. These results demonstrate that simple linear optical measurements can offer supremal performances for both detection and estimation.
description: 8 pages, 5 figures, and 1 table
The Role of Baryons in Creating Statistically Significant Planes of Satellites around Milky Way-Mass Galaxies
Creators: name: Ahmed, Sheehan H.
name: Brooks, Alyson M.
name: Christensen, Charlotte R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate whether the inclusion of baryonic physics influences the formation of thin, coherently rotating planes of satellites such as those seen around the Milky Way and Andromeda. For four Milky Way-mass simulations, each run both as dark matter-only and with baryons included, we are able to identify a planar configuration that significantly maximizes the number of plane satellite members. The maximum plane member satellites are consistently different between the dark matter-only and baryonic versions of the same run due to the fact that satellites are both more likely to be destroyed and to infall later in the baryonic runs. Hence, studying satellite planes in dark matter-only simulations is misleading, because they will be composed of different satellite members than those that would exist if baryons were included. Additionally, the destruction of satellites in the baryonic runs leads to less radially concentrated satellite distributions, a result that is critical to making planes that are statistically significant compared to a random distribution. Since all planes pass through the centre of the galaxy, it is much harder to create a plane from a random distribution if the satellites have a low radial concentration. We identify Andromeda's low radial satellite concentration as a key reason why the plane in Andromeda is highly significant. Despite this, when co-rotation is considered, none of the satellite planes identified for the simulated galaxies are as statistically significant as the observed planes around the Milky Way and Andromeda, even in the baryonic runs.
description: 16 pages, 9 figures, submitted to MNRAS
Simon James / Stefan Krmnicek (Hrsg.), The Oxford Handbook of the Archaeology of Roman Germany
Creators: name: Kunow, Jürgen
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Rezension zu: Simon James / Stefan Krmnicek (Hrsg.), The Oxford Handbook of the Archaeology of Roman Germany. Oxford University Press, Oxford 2020. € 134,50. ISBN 978-0-19-966573-0 (Hardcover). ISBN 978-0-19-180211-9 (E-Book). doi: https://doi.org/10.1093/oxfordhb/9780199665730.001.0001. 623 Seiten mit zahlreichen Karten und Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 100 2022(2023)