cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magical Realism in the Selected Works by Jonathan Carroll
Creators: name: Wiśniewska, Ewa
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego. Filia w Piotrkowie Trybunalskim
Year: 2022

description: Monografia porusza problematykę obecności elementów realizmu magicznego w wybranych powieściach Jonathana Carrolla. Stanowi ona istotny wkład do badań nad dziełami tego amerykańskiego pisarza, którego dzieła są powszechnie uznane i wyjątkowo popularne wśród czytelników w Polsce, lecz liczba ich akademickich opracowań jest znikoma. Jonathan Carroll jest jednym z najbardziej znanych współczesnych amerykańskich twórców, a jego dzieła, takie jak „Kraina chichów” czy „Kości księżyca” zaliczane do kanonu światowej literatury fanta-stycznej, są dostępne w księgarniach i bibliotekach na całym świecie. Praca składa się ze wstępu, trzech rozdziałów merytorycznych, zakończenia oraz bibliogra-fii. Zawiera odniesienia do najbardziej reprezentatywnych i najpopularniejszych książek auto-rów zaliczanych do kręgu realizmu magicznego, czyli Gabriela Garcii Marqueza, Angeli Carter i Salmana Rushdiego. Powieści wymienionych twórców zawierają szereg cech wyróżniających i definiujących gatunek; można je odnaleźć zarówno w ich formie, jak i treści. Jonathan Carroll nie jest powszechnie klasyfikowany jako pisarz realizmu magicznego, jed-nak jego powieści analizowane w monografii zawierają elementy gatunkowe zarówno w for-mie, jak i treści.
description: Contents Abbreviations used in this work 7 Introduction 9 Chapter I The history of magical realism 11 1. Magical realism in painting 11 2. Magical realism in literature 15 Chapter II Magical realism in Latin America 19 1. Origins 19 2. Postcolonialism 25 3. Gabriel Garcia Márquez’ One Hundred Years of Solitude 28 3.1. Introduction 28 3.2. Magical realist traits according to Faris 32 3.3. Magical realist traits according to Angulo 40 3.4. The role of the narrator 42 3.5. Authorial Reticence 43 4. Magic 44 5. The process of defamiliarization 46 6. Conclusion 46 Chapter III Magical realism outside Latin America 49 1. Introduction 49 2. Magical realism in Angela Carter’s Nights at the Circus 50 3. Magical realism in Salman Rushdie’s Midnight’s Children 59 4. Conclusion 64 Chapter IV Magical realism in the form of The Land of Laughs, Bones of the Moon and Sleeping in Flame 67 1. Introduction 67 1.1. Biography of Jonathan Carroll 67 1.2. Literary output 68 1.2.1. Early works 68 1.2.2. Later works 71 2. Magical realist elements in the form 71 2.1. The narrator 71 2.2. Language 74 2.3. Metafiction 79 2.4. Linguistic magic 80 2.5. Detailed descriptions 82 3. Conclusion 89 Chaper V Magical realist elements in the contents of The Land of Laughs, Bones of the Moon and Sleeping in Flame 91 1. The time and place of action 91 2. The characters 97 2.1. Main characters 97 2.2. Episodic characters 106 3. The events 111 4. The objects 120 5. Biblical and mythical motifs 123 6. Conclusion 126 Conclusion 129 Works Cited 131
Plan-Then-Execute: An Empirical Study of User Trust and Team Performance When Using LLM Agents As A Daily Assistant
Creators: name: He, Gaole
name: Demartini, Gianluca
name: Gadiraju, Ujwal
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Since the explosion in popularity of ChatGPT, large language models (LLMs) have continued to impact our everyday lives. Equipped with external tools that are designed for a specific purpose (e.g., for flight booking or an alarm clock), LLM agents exercise an increasing capability to assist humans in their daily work. Although LLM agents have shown a promising blueprint as daily assistants, there is a limited understanding of how they can provide daily assistance based on planning and sequential decision making capabilities. We draw inspiration from recent work that has highlighted the value of 'LLM-modulo' setups in conjunction with humans-in-the-loop for planning tasks. We conducted an empirical study (N = 248) of LLM agents as daily assistants in six commonly occurring tasks with different levels of risk typically associated with them (e.g., flight ticket booking and credit card payments). To ensure user agency and control over the LLM agent, we adopted LLM agents in a plan-then-execute manner, wherein the agents conducted step-wise planning and step-by-step execution in a simulation environment. We analyzed how user involvement at each stage affects their trust and collaborative team performance. Our findings demonstrate that LLM agents can be a double-edged sword -- (1) they can work well when a high-quality plan and necessary user involvement in execution are available, and (2) users can easily mistrust the LLM agents with plans that seem plausible. We synthesized key insights for using LLM agents as daily assistants to calibrate user trust and achieve better overall task outcomes. Our work has important implications for the future design of daily assistants and human-AI collaboration with LLM agents.
description: conditionally accepted to CHI 2025
Dynamics of Fragment Formation in Neutron Rich Matter
Creators: name: Alcain, Pablo
name: Dorso, Claudio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: Neutron stars are astronomical systems with nucleons submitted to extreme conditions. Due to the longer range coulomb repulsion between protons, the system has structural inhomogeneities. Several interactions tailored to reproduce nuclear matter plus screened Coulomb term reproduce these inhomogeneities known as nuclear pasta. These structural inhomogeneities, located in the crust of neutron stars, can also arise in expanding systems depending on the thermodynamic conditions (temperature, proton fraction, ...) and the expansion velocity. Purpose: We aim to find the dynamics of the fragments formation for expanding systems simulated according to the little big bang model. This expansion resembles the evolution of neutron stars merger. Method: We study the dynamics of the nucleons with semiclassical molecular dynamics models. Starting with an equilibrium configuration, we expand the system homogeneously until we arrive to an asymptotic configuration (i. e. very low final densities). We study, with four different cluster recognition algorithms, the fragment distribution throughout this expansion and the dynamics of the cluster formation. Results: Studying the topology of the equilibrium states, before the expansion, we reproduced the known pasta phases plus a novel phase we called pregnocchi, consisting of proton aggregates embedded in a neutron sea. We have identified different fragmentation regimes, depending on the initial temperature and fragment velocity. In particular, for the already mentioned pregnocchi, a neutron cloud surrounds the clusters during the early stages of the expansion, resulting in systems that give rise to configurations compatibles with the emergence of r-proccess. Conclusions: These calculations pave the way to a comparision between Earth experiments and neutron star studies.
description: arXiv admin note: text overlap with arXiv:1603.09362
Semirelativistic approximation to the $γ^\ast N \to N(1520)$ and $γ^\ast N \to N(1535)$ transition form factors
Creators: name: Ramalho, G.
Publisher: name: arXiv
Year: 2016
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: The representation of the wave functions of the nucleon resonances within a relativistic framework is a complex task. In a nonrelativistic framework the orthogonality between states can be imposed naturally. In a relativistic generalization, however, the derivation of the orthogonality condition between states can be problematic, particularly when the states have different masses. In this work we study the $N(1520)$ and $N(1535)$ states using a relativistic framework. We considered wave functions derived in previous works, but impose the orthogonality between the nucleon and resonance states using the properties of the nucleon, ignoring the difference of masses between the states (semirelativistic approximation). The $N(1520)$ and $N(1535)$ wave functions are then defined without any adjustable parameters and are used to make predictions for the valence quark contributions to the transition form factors. The predictions compare well with the data particularly for high momentum transfer, where the dominance of the quark degrees of freedom is expected.
description: 5 figures, 14 pages. Published version
Collisions of Dark Matter Axion Stars with Astrophysical Sources
Creators: name: Eby, Joshua
name: Leembruggen, Madelyn
name: Leeney, Joseph
name: Suranyi, Peter
name: Wijewardhana, L. C. R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If QCD axions form a large fraction of the total mass of dark matter, then axion stars could be very abundant in galaxies. As a result, collisions with each other, and with other astrophysical bodies, can occur. We calculate the rate and analyze the consequences of three classes of collisions, those occurring between a dilute axion star and: another dilute axion star, an ordinary star, or a neutron star. In all cases we attempt to quantify the most important astrophysical uncertainties; we also pay particular attention to scenarios in which collisions lead to collapse of otherwise stable axion stars, and possible subsequent decay through number changing interactions. Collisions between two axion stars can occur with a high total rate, but the low relative velocity required for collapse to occur leads to a very low total rate of collapses. On the other hand, collisions between an axion star and an ordinary star have a large rate, $Γ_\odot \sim 3000$ collisions/year/galaxy, and for sufficiently heavy axion stars, it is plausible that most or all such collisions lead to collapse. We identify in this case a parameter space which has a stable region and a region in which collision triggers collapse, which depend on the axion number ($N$) in the axion star, and a ratio of mass to radius cubed characterizing the ordinary star ($M_s/R_s^3$). Finally, we revisit the calculation of collision rates between axion stars and neutron stars, improving on previous estimates by taking cylindrical symmetry of the neutron star distribution into account. Collapse and subsequent decay through collision processes, if occurring with a significant rate, can affect dark matter phenomenology and the axion star mass distribution.
description: 19 pages, 5 figures. v2: References added, typos corrected
The exchange-only singlet-only spin qubit
Creators: name: Sala, Arnau
name: Danon, Jeroen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a feasible and scalable quantum-dot-based implementation of a singlet-only spin qubit which is to leading order intrinsically insensitive to random effective magnetic fields set up by fluctuating nuclear spins in the host semiconductor. Our proposal thus removes an important obstacle for further improvement of spin qubits hosted in high-quality III-V semiconductors such as GaAs. We show how the resulting qubit could be initialized, manipulated, and read out by electrical means only, in a way very similar to a triple-dot exchange-only spin qubit. Due to the intrinsic elimination of the effective nuclear fields from the qubit Hamiltonian, we find an improvement of the dephasing time $T_2^*$ of several orders of magnitude as compared to similar existing spin qubits.
description: 5 pages, two figures plus supplementary material. The new version includes a few minor changes in the text and some new references
Improving Search Quality by Enhancing Access to Metadata
Creators: name: Haynes, David
Publisher: name: Zenodo
Year: 2023
Subjects: metadata
academic libraries
search interface
library management system

description: Has something been lost in the move towards federated searching and relevance ranking in academic library search interfaces? The richness of metadata and other KOSs such as classification schemes and controlled vocabularies is often not featured in LMS procurement. The ISKO STAC has set up a working group to develop a set of guidelines for academic libraries that are planning to procure a library management system. The purpose of the guidelines is to enable users to benefit from the intellectual effort that has been invested in assigning metadata to electronic resources. This paper reports on progress of the working group in its review of the literature and the plans for consultations with stakeholders.
Magic informationally complete POVMs with permutations
Creators: name: Planat, Michel
name: Gedik, Zafer
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P50, 81P68, 81P13, 81P45, 20B05

description: Eigenstates of permutation gates are either stabilizer states (for gates in the Pauli group) or magic states, thus allowing universal quantum computation [M. Planat and Rukhsan-Ul-Haq, Preprint 1701.06443]. We show in this paper that a subset of such magic states, when acting on the generalized Pauli group, define (asymmetric) informationally complete POVMs. Such IC-POVMs, investigated in dimensions $2$ to $12$, exhibit simple finite geometries in their projector products and, for dimensions $4$ and $8$ and $9$, relate to two-qubit, three-qubit and two-qutrit contextuality.
description: 11 pages, 6 figures, 1 table, a few complements and corrections
In Pursuit of New Physics with $B^0_{s,d}\to\ell^+\ell^-$
Creators: name: Fleischer, Robert
name: Jaarsma, Ruben
name: Tetlalmatzi-Xolocotzi, Gilberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Leptonic rare decays of $B^0_{s,d}$ mesons offer a powerful tool to search for physics beyond the Standard Model. The $B^0_{s}\toμ^+μ^-$ decay has been observed at the Large Hadron Collider and the first measurement of the effective lifetime of this channel was presented, in accordance with the Standard Model. On the other hand, $B^0_{s}\toτ^+τ^-$ and $B^0_{s}\to e^+e^-$ have received considerably less attention: while LHCb has recently reported a first upper limit of $6.8\times10^{-3}$ (95% C.L.) for the $B^0_s\toτ^+τ^-$ branching ratio, the upper bound $2.8\times 10^{-7}$ (90% C.L.) for the branching ratio of $B^0_s\to e^+e^-$ was reported by CDF back in 2009. We discuss the current status of the interpretation of the measurement of $B^0_{s}\toμ^+μ^-$, and explore the space for New-Physics effects in the other $B^0_{s,d}\to\ell^+\ell^-$ decays in a scenario assuming flavour-universal Wilson coefficients of the relevant four-fermion operators. While the New-Physics effects are then strongly suppressed by the ratio $m_μ/m_τ$ of the lepton masses in $B^0_s\toτ^+τ^-$, they are hugely enhanced by $m_μ/m_e$ in $B^0_s\to e^+e^-$ and may result in a $B^0_s\to e^+e^-$ branching ratio as large as about 5 times the one of $B^0_{s}\toμ^+μ^-$, which is about a factor of 20 below the CDF bound; a similar feature arises in $B^0_{d}\to e^+e^-$. Consequently, it would be most interesting to search for the $B^0_{s,d}\to e^+e^-$ channels at the LHC and Belle II, which may result in an unambiguous signal for physics beyond the Standard Model.
description: 24 pages, 7 figures, more general discussion, application of MSSM MFV model corrected, main conclusions unchanged
A Theory of Solvability for Lossless Power Flow Equations -- Part I: Fixed-Point Power Flow
Creators: name: Simpson-Porco, John W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This two-part paper details a theory of solvability for the power flow equations in lossless power networks. In Part I, we derive a new formulation of the lossless power flow equations, which we term the fixed-point power flow. The model is stated for both meshed and radial networks, and is parameterized by several graph-theoretic matrices -- the power network stiffness matrices -- which quantify the internal coupling strength of the network. The model leads immediately to an explicit approximation of the high-voltage power flow solution. For standard test cases, we find that iterates of the fixed-point power flow converge rapidly to the high-voltage power flow solution, with the approximate solution yielding accurate predictions near base case loading. In Part II, we leverage the fixed-point power flow to study power flow solvability, and for radial networks we derive conditions guaranteeing the existence and uniqueness of a high-voltage power flow solution. These conditions (i) imply exponential convergence of the fixed-point power flow iteration, and (ii) properly generalize the textbook two-bus system results.
$N$ identical particles and one particle to entangle them all
Creators: name: Bellomo, Bruno
name: Franco, Rosario Lo
name: Compagno, Giuseppe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quantum information W states are a central class of multipartite entangled states because of their robustness against noise and use in many quantum processes. Their generation however remains a demanding task whose difficulty increases with the number of particles. We report a simple scalable conceptual scheme where a single particle in an ancilla mode works as entanglement catalyst of W state for other $N$ separated identical particles. A crucial novel aspect of the scheme, which exploits basically spatial indistinguishability, is its universality, being applicable without essential changes to both bosons and fermions. Our proposal represents a new paradigm within experimental preparation of many-particle entanglement based on quantum indistinguishability.
description: 6 pages, 2 figures. Updated version close to the published one
Magnetic ground state of SrRuO$_3$ thin film and applicability of standard first-principles approximations to metallic magnetism
Creators: name: Ryee, Siheon
name: Han, Myung Joon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A systematic first-principles study has been performed to understand the magnetism of thin film SrRuO$_3$ which lots of research efforts have been devoted to but no clear consensus has been reached about its ground state properties. The relative t$_{2g}$ level difference, lattice distortion as well as the layer thickness play together in determining the spin order. In particular, it is important to understand the difference between two standard approximations, namely LDA and GGA, in describing this metallic magnetism. Landau free energy analysis and the magnetization-energy-ratio plot clearly show the different tendency of favoring the magnetic moment formation, and it is magnified when applied to the thin film limit where the experimental information is severely limited. As a result, LDA gives a qualitatively different prediction from GGA in the experimentally relevant region of strain whereas both approximations give reasonable results for the bulk phase. We discuss the origin of this difference and the applicability of standard methods to the correlated oxide and the metallic magnetic systems.
description: 5 figures. Accepted for publication in Scientific Reports
What to Fix? Distinguishing between design and non-design rules in automated tools
Creators: name: Ernst, Neil A.
name: Bellomo, Stephany
name: Ozkaya, Ipek
name: Nord, Robert L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Technical debt---design shortcuts taken to optimize for delivery speed---is a critical part of long-term software costs. Consequently, automatically detecting technical debt is a high priority for software practitioners. Software quality tool vendors have responded to this need by positioning their tools to detect and manage technical debt. While these tools bundle a number of rules, it is hard for users to understand which rules identify design issues, as opposed to syntactic quality. This is important, since previous studies have revealed the most significant technical debt is related to design issues. Other research has focused on comparing these tools on open source projects, but these comparisons have not looked at whether the rules were relevant to design. We conducted an empirical study using a structured categorization approach, and manually classify 466 software quality rules from three industry tools---CAST, SonarQube, and NDepend. We found that most of these rules were easily labeled as either not design (55%) or design (19%). The remainder (26%) resulted in disagreements among the labelers. Our results are a first step in formalizing a definition of a design rule, in order to support automatic detection.
description: Long version of accepted short paper at International Conference on Software Architecture 2017 (Gothenburg, SE)
The Best of Both Worlds: Linear Functional Programming without Compromise
Creators: name: Morris, J. Garrett
Publisher: name: arXiv
Year: 2016
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.3.2; D.3.3

description: We present a linear functional calculus with both the safety guarantees expressible with linear types and the rich language of combinators and composition provided by functional programming. Unlike previous combinations of linear typing and functional programming, we compromise neither the linear side (for example, our linear values are first-class citizens of the language) nor the functional side (for example, we do not require duplicate definitions of compositions for linear and unrestricted functions). To do so, we must generalize abstraction and application to encompass both linear and unrestricted functions. We capture the typing of the generalized constructs with a novel use of qualified types. Our system maintains the metatheoretic properties of the theory of qualified types, including principal types and decidable type inference. Finally, we give a formal basis for our claims of expressiveness, by showing that evaluation respects linearity, and that our language is a conservative extension of existing functional calculi.
description: Extended version
A Theory of Solvability for Lossless Power Flow Equations -- Part II: Conditions for Radial Networks
Creators: name: Simpson-Porco, John W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This two-part paper details a theory of solvability for the power flow equations in lossless power networks. In Part I, we derived a new formulation of the lossless power flow equations, which we term the fixed-point power flow. The model is parameterized by several graph-theoretic matrices -- the power network stiffness matrices -- which quantify the internal coupling strength of the network. In Part II, we leverage the fixed-point power flow to study power flow solvability. For radial networks, we derive parametric conditions which guarantee the existence and uniqueness of a high-voltage power flow solution, and construct examples for which the conditions are also necessary. Our conditions (i) imply convergence of the fixed-point power flow iteration, (ii) unify and extend recent results on solvability of decoupled power flow, (iii) directly generalize the textbook two-bus system results, and (iv) provide new insights into how the structure and parameters of the grid influence power flow solvability.
Black Hole Superradiance Signatures of Ultralight Vectors
Creators: name: Baryakhtar, Masha
name: Lasenby, Robert
name: Teo, Mae
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The process of superradiance can extract angular momentum and energy from astrophysical black holes (BHs) to populate gravitationally-bound states with an exponentially large number of light bosons. We analytically calculate superradiant growth rates for vectors around rotating BHs in the regime where the vector Compton wavelength is much larger than the BH size. Spin-1 bound states have superradiance times as short as a second around stellar BHs, growing up to a thou- sand times faster than their spin-0 counterparts. The fast rates allow us to use measurements of rapidly spinning BHs in X-ray binaries to exclude a wide range of masses for weakly-coupled spin-1 particles, $5 \times 10^{-14} - 2 \times 10^{-11}$ eV; lighter masses in the range $6 \times 10^{-20} - 2 \times 10^{-17}$ eV start to be constrained by supermassive BH spin measurements at a lower level of confidence. We also explore routes to detection of new vector particles possible with the advent of gravitational wave (GW) astronomy. The LIGO-Virgo collaboration could discover hints of a new light vector particle in statistical analyses of masses and spins of merging BHs. Vector annihilations source continuous monochromatic gravitational radiation which could be observed by current GW observatories. At design sensitivity, Advanced LIGO may measure up to thousands of annihilation signals from within the Milky Way, while hundreds of BHs born in binary mergers across the observable universe may superradiate vector bound states and become new beacons of monochromatic gravitational waves.
description: 16 pages + appendices, 12 figures; matches version published in PRD
Case Studies on Plasma Wakefield Accelerator Design
Creators: name: Osterhoff, J.
name: Najmudin, Z.
name: Faure, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The field of plasma-based particle accelerators has seen tremendous progress over the past decade and experienced significant growth in the number of activities. During this process, the involved scientific community has expanded from traditional university-based research and is now encompassing many large research laboratories worldwide, such as BNL, CERN, DESY, KEK, LBNL and SLAC. As a consequence, there is a strong demand for a consolidated effort in education at the intersection of accelerator, laser and plasma physics. The CERN Accelerator School on Plasma Wake Acceleration has been organized as a result of this development. In this paper, we describe the interactive component of this one-week school, which consisted of three case studies to be solved in 11 working groups by the participants of the CERN Accelerator School.
description: 8 pages, contribution to the CAS - CERN Accelerator School: Plasma Wake Acceleration, CERN, Geneva, Switzerland, 23 - 29 Nov 2014. arXiv admin note: text overlap with arXiv:1306.6327 by other authors
Anomalous magnetic and weak magnetic dipole moments of the $τ$ lepton in the simplest little Higgs model
Creators: name: Arroyo-Ureña, M. A.
name: Hernández-Tomé, G.
name: Tavares-Velasco, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We obtain analytical expressions, both in terms of parametric integrals and Passarino-Veltman scalar functions, for the one-loop contributions to the anomalous weak magnetic dipole moment (AWMDM) of a charged lepton in the framework of the simplest little Higgs model (SLHM). Our results are general and can be useful to compute the weak properties of a charged lepton in other extensions of the standard model (SM). As a by-product we obtain generic contributions to the anomalous magnetic dipole moment (AMDM), which agree with previous results. We then study numerically the potential contributions from this model to the $τ$ lepton AMDM and AWMDM for values of the parameter space consistent with current experimental data. It is found that they depend mainly on the energy scale $f$ at which the global symmetry is broken and the $t_β$ parameter, whereas there is little sensitivity to a mild change in the values of other parameters of the model. While the $τ$ AMDM is of the order of $10^{-9}$, the real (imaginary) part of its AWMDM is of the order of $10^{-9}$ ($10^{-10}$). These values seem to be out of the reach of the expected experimental sensitivity of future experiments.
description: 23 pages, 11 figures, new analysis and References added
What is the Maximum Mass of a Population III Galaxy?
Creators: name: Visbal, Eli
name: Bryan, Greg L.
name: Haiman, Zoltan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We utilize cosmological hydrodynamic simulations to study the formation of Population III (Pop III) stars in dark matter halos exposed to strong ionizing radiation. We simulate the formation of three halos subjected to a wide range of ionizing fluxes, and find that for high flux, ionization and photoheating can delay gas collapse and star formation up to halo masses significantly larger than the atomic cooling threshold. The threshold halo mass at which gas first collapses and cools increases with ionizing flux for intermediate values, and saturates at a value approximately an order of magnitude above the atomic cooling threshold for extremely high flux (e.g. $\approx 5 \times 10^8 ~ M_\odot$ at $z\approx6$). This behavior can be understood in terms of photoheating, ionization/recombination, and Ly$α$ cooling in the pressure-supported, self-shielded gas core at the center of the growing dark matter halo. We examine the spherically-averaged radial velocity profiles of collapsing gas and find that a gas mass of up to $\approx 10^{6}~ M_\odot$ can reach the central regions within $3~{\rm Myr}$, providing an upper limit on the amount of massive Pop III stars that can form. The ionizing radiation increases this limit by a factor of a few compared to strong Lyman-Werner (LW) radiation alone. We conclude that the bright HeII 1640 Å emission recently observed from the high-redshift galaxy CR7 cannot be explained by Pop III stars alone. However, in some halos, a sufficient number of Pop III stars may form to be detectable with future telescopes such as the James Webb Space Telescope (JWST).
description: 10 pages, 8 figures, replaced with version accepted by MNRAS
Hyperradiance from collective behavior of coherently driven atoms
Creators: name: Pleinert, M. -O.
name: von Zanthier, J.
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The collective behavior of ensembles of atoms has been studied in-depth since the seminal paper of Dicke [R. H. Dicke, Phys. Rev. 93, 99 (1954)], where he demonstrated that a group of emitters in collective states is able to radiate with increased intensity and modified decay rates in particular directions, a phenomenon which he called superradiance. Here, we show that the fundamental setup of two atoms coupled to a single-mode cavity can be distinctly exceeding the free-space superradiant behavior, a phenomenon which we call hyperradiance. The effect is accompanied by strong quantum fluctuations and surprisingly arises for atoms radiating out-of-phase, an alleged non-ideal condition, where one expects subradiance. We are able to explain the onset of hyperradiance in a transparent way by a photon cascade taking place among manifolds of Dicke states with different photon numbers under particular out-of-phase coupling conditions. The theoretical results can be realized with current technology and thus should stimulate future experiments.
description: 8 pages, 5 figures. Extended article on the radiation characteristics part of arXiv:1608.00137v1
Swift monitoring of NGC 4151: Evidence for a Second X-ray/UV Reprocessing
Creators: name: Edelson, R.
name: Gelbord, J.
name: Cackett, E.
name: Connolly, S.
name: Done, C.
name: Fausnaugh, M.
name: Gardner, E.
name: Gehrels, N.
name: Goad, M.
name: Horne, K.
name: McHardy, I.
name: Peterson, B. M.
name: Vaughan, S.
name: Vestergaard, M.
name: Breeveld, A.
name: Barth, A. J.
name: Bentz, M.
name: Bottorff, M.
name: Brandt, W. N.
name: Crawford, S. M.
name: Bonta, E. Dalla
name: Emmanoulopoulos, D.
name: Evans, P.
name: Jaimes, R. Figuera
name: Filippenko, A. V.
name: Ferland, G.
name: Grupe, D.
name: Joner, M.
name: Kennea, J.
name: Korista, K. T.
name: Krimm, H. A.
name: Kriss, G.
name: Leonard, D. C.
name: Mathur, S.
name: Netzer, H.
name: Nousek, J.
name: Page, K.
name: Romero-Colmenero, E.
name: Siegel, M.
name: Starkey, D. A.
name: Treu, T.
name: Vogler, H. A.
name: Winkler, H.
name: Zheng, W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Swift monitoring of NGC 4151 with ~6 hr sampling over a total of 69 days in early 2016 is used to construct light curves covering five bands in the X-rays (0.3-50 keV) and six in the ultraviolet (UV)/optical (1900-5500 A). The three hardest X-ray bands (>2.5 keV) are all strongly correlated with no measurable interband lag while the two softer bands show lower variability and weaker correlations. The UV/optical bands are significantly correlated with the X-rays, lagging ~3-4 days behind the hard X-rays. The variability within the UV/optical bands is also strongly correlated, with the UV appearing to lead the optical by ~0.5-1 day. This combination of >~3 day lags between the X-rays and UV and
description: 14 pages, 6 figures, 7 tables. To appear in ApJ April 2017 issue. This version incorporates minor revisions to conform to published version and corrects the links to the author names above
Evaluating Chinese Government Investment on Early Childhood Education from 2010-2020: Effective or not?
Creators: name: Hu, Zhiyun
Publisher: name: University of Chicago
Year: 2023
Subjects: subject: Early Childhood Education
subject: Chinese Early Childhood Education
subject: Evaluating government performance

description: This paper assesses the effectiveness of government investment in early childhood education (ECE) services in China over the past decade. It draws on works by Heckman (2004), Cunha and Heckman (2007), and program evaluation studies (Rao et al., 2012) that emphasize the long-term benefits of early childhood investment. This paper evaluates Chinese government’s achievement of objectives outlined in “The Plan” and “The Guidelines”, which focus on improving kindergarten gross enrollment rates and addressing the “3A” issues (Accessibility, Affordability, and Accountability) as specified in China's 13th Five-Year Plan launched in 2010.The study evaluates the two ECE policy efforts (“The Plan” and “The Guidelines”) through matching keywords from these documents and using data from three different sources: official kindergarten enrollment data, CFPS longitudinal survey (The China Family Panel Studies) data initiated in 2010 by Peking University, and news article keyword data from Baidu.com. The study provides an evaluation of government investment in ECE in China, gauging its alignment with objectives outlined in policy documents, and considering the perspectives of both official data as well as media perception through surveys and media sentiment analysis. Findings indicate that even though the official data met the government target objectives on enrollment rate for all provinces, the survey data demonstrates discrepancy that some provinces did not meet the target goal in 2020. This provides insights into the consistency between official data and the perceptions reported by surveyed individuals and households. Furthermore, sentiment analysis of news headlines show a positive trend in media perception of ECE, which helps to investigate the correspondence between media sentiment and official data.
Sector Causal Loop Diagrams & Fuzzy Cognitive Map for Belgian Coastal Zone
Creators: name: De Kok, Jean-Luc
name: Notebaert, Bastiaan
name: Tiller, Rachel
Publisher: name: Zenodo
Year: 2022
Subjects: Causal Loop Diagram;
Fuzzy Cognitive Map
Belgian Coastal Zone
Multi-Actor
Workshop
MAL1

description: These data consist of thematic Causal Loop Diagrams (CLDs) and an integrated Fuzzy Cognitive Maps (FCMs) for the Belgian Coastal Zone based on sector workshops organised from Sep-Dec 2018 and combined multi-actor workshop organised in May 2019. The CLDs and FCMs are based on polished mind maps and stored in VenSim format as this software was used in the workshops. A free learning edition of VenSim (PLE) is available through https://vensim.com/free-download/ Related project deliverables available through https://h2020-coastal.eu/resources Related scientific publication: ▪ Tiller R.G., Destouni G., Golumbeanu M., Kalantari Z., Kastanidi E., Lazar L., Lescot J.-M., Maneas G., Martínez-López J., Notebaert B., Seifollahi-Aghmiuni S., Timofte F., De Vente J., Françoise V. and De Kok J.L. Understanding Stakeholder Synergies Through System Dynamics: Integrating Multi-Sectoral Stakeholder Narratives Into Quantitative Environmental Models. Front. Sust. 2:1-12 (2021). https://doi.org/10.3389/frsus.2021.701180.
Magnetic-proximity-induced magnetoresistance on topological insulators
Creators: name: Chiba, Takahiro
name: Takahashi, Saburo
name: Bauer, Gerrit E. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically study the magnetoresistance (MR) of two-dimensional massless Dirac electrons as found on the surface of three-dimensional topological insulators (3D TIs) that is capped by a ferromagnetic insulator (FI). We calculate charge and spin transport by Kubo and Boltzmann theories, taking into account the ladder-vertex correction and the in-scattering due to normal and magnetic disorder. The induced exchange splitting is found to generate an electric conductivity that depends on the magnetization orientation, but its form is very different from both the anisotropic and spin Hall MR. The in-plane MR vanishes identically for non-magnetic disorder, while out-of-plane magnetizations cause a large MR ratio. On the other hand, we do find an in-plane MR and planar Hall effect in the presence of magnetic disorder aligned with the FI magnetization. Our results may help understand recent transport measurements on TI|FI systems.
description: 10 pages, 5 figures, to appear in Phys. Rev. B
Probing free-space quantum channels with laboratory-based experiments
Creators: name: Bohmann, Martin
name: Kruse, Regina
name: Sperling, Jan
name: Silberhorn, Christine
name: Vogel, Werner
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Atmospheric channels are a promising candidate to establish secure quantum communication on a global scale. However, due to their turbulent nature, it is crucial to understand the impact of the atmosphere on the quantum properties of light and examine it experimentally. In this paper, we introduce a method to probe atmospheric free-space links with quantum light on a laboratory scale. In contrast to previous works, our method models arbitrary intensity losses caused by turbulence to emulate general atmospheric conditions. This allows us to characterize turbulent quantum channels in a well-controlled manner. To implement this technique, we perform a series of measurements with different constant attenuations and simulate the fluctuating losses by combining the obtained data. We directly test the proposed method with an on-chip source of nonclassical light and a time-bin-multiplexed detection system. With the obtained data, we characterize the nonclassicality of the generated states for different atmospheric noise models and analyze a post-selection protocol. This general technique in atmospheric quantum optics allows for studying turbulent quantum channels and predicting their properties for future applications.
Haro 11: Where is the Lyman continuum source?
Creators: name: Keenan, Ryan P.
name: Oey, M. S.
name: Jaskot, Anne E.
name: James, Bethan L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Identifying the mechanism by which high energy Lyman continuum (LyC) photons escaped from early galaxies is one of the most pressing questions in cosmic evolution. Haro 11 is the best known local LyC leaking galaxy, providing an important opportunity to test our understanding of LyC escape. The observed LyC emission in this galaxy presumably originates from one of the three bright, photoionizing knots known as A, B, and C. It is known that Knot C has strong Ly$α$ emission, and Knot B hosts an unusually bright ultraluminous X-ray source, which may be a low-luminosity AGN. To clarify the LyC source, we carry out ionization-parameter mapping (IPM) by obtaining narrow-band imaging from the Hubble Space Telescope WFC3 and ACS cameras to construct spatially resolved ratio maps of [OIII]/[OII] emission from the galaxy. IPM traces the ionization structure of the interstellar medium and allows us to identify optically thin regions. To optimize the continuum subtraction, we introduce a new method for determining the best continuum scale factor derived from the mode of the continuum-subtracted, image flux distribution. We find no conclusive evidence of LyC escape from Knots B or C, but instead, we identify a high-ionization region extending over at least 1 kpc from Knot A. Knot A shows evidence of an extremely young age ($\lesssim 1$ Myr), perhaps containing very massive stars ($>100$ M$_\odot$). It is weak in Ly$α$, so if it is confirmed as the LyC source, our results imply that LyC emission may be independent of Ly$α$ emission.
description: 12 pages, 6 Figures, Submitted to ApJ
Relativistic effective degrees of freedom and quantum statistics of neutrinos
Creators: name: Iizuka, Jun
name: Kitabayashi, Teruyuki
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Analytical expressions of the relativistic effective degrees of freedom $g_\ast$ with non-pure fermionic neutrinos are presented. A semi-analytical study is performed to show that $g_\ast$ with pure fermionic neutrinos may be greater than $g_\ast$ with pure bosonic neutrinos for non-vanishing lepton flavor asymmetries.
description: 5 pages, no figure,version accepted for publication in Modern Physics Letters A
An in situ comparison of electron acceleration at collisionless shocks under differing upstream magnetic field orientations
Creators: name: Masters, A.
name: Sulaiman, A. H.
name: Stawarz, Ł.
name: Reville, B.
name: Sergis, N.
name: Fujimoto, M.
name: Burgess, D.
name: Coates, A. J.
name: Dougherty, M. K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A leading explanation for the origin of Galactic cosmic rays is acceleration at high-Mach number shock waves in the collisionless plasma surrounding young supernova remnants. Evidence for this is provided by multi-wavelength non-thermal emission thought to be associated with ultrarelativistic electrons at these shocks. However, the dependence of the electron acceleration process on the orientation of the upstream magnetic field with respect to the local normal to the shock front (quasi-parallel/quasi-perpendicular) is debated. Cassini spacecraft observations at Saturn's bow shock has revealed examples of electron acceleration under quasi-perpendicular conditions, and the first in situ evidence of electron acceleration at a quasi-parallel shock. Here we use Cassini data to make the first comparison between energy spectra of locally accelerated electrons under these differing upstream magnetic field regimes. We present data taken during a quasi-perpendicular shock crossing on 2008 March 8 and during a quasi-parallel shock crossing on 2007 February 3, highlighting that both were associated with electron acceleration to at least MeV energies. The magnetic signature of the quasi-perpendicular crossing has a relatively sharp upstream-downstream transition, and energetic electrons were detected close to the transition and immediately downstream. The magnetic transition at the quasi-parallel crossing is less clear, energetic electrons were encountered upstream and downstream, and the electron energy spectrum is harder above ~100 keV. We discuss whether the acceleration is consistent with diffusive shock acceleration theory in each case, and suggest that the quasi-parallel spectral break is due to an energy-dependent interaction between the electrons and short, large-amplitude magnetic structures.
description: 23 pages, 4 figures. Accepted for publication in ApJ
Dielectric properties of graphene on transition metal dichalcogenide substrate
Creators: name: Goswami, Partha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The tunability of the dielectric properties induced by the substrate driven interactions (SDI) and the exchange field (M) due to the ferro-magnetic impurities in graphene monolayer on transition metal dichalcogenide (TMDC) (viz., XY2 , X = Mo, W; Y = S, Se) around K and K prime points is reported here. The cavalcade of interactions involve sub-lattice-resolved, strongly enhanced intrinsic spin-orbit couplings(SOC), the extrinsic Rashba spin-orbit coupling (RSOC), and the orbital gap related to the transfer of the electronic charge from graphene to XY2. The RSOC allows for external tuning of the band gap in graphene and connects the nearest neighbors with spin-flip. We obtain the usual gapped bands with an effective, RSOC-dependent Zeeman field due to the interplay of SDI. Using these bands we obtain the closed analytical expression of the dielectric function in the finite doping case. The zero of the dielectric function corresponds to the collective mode. Upon including the full dispersion of graphene on TMDC, we find that there is in fact only one collective mode and it corresponds to charge plasmons. The dispersion of the latter yields the q^2/3 behavior and not the well known q^1/2 behavior. We also find that the plasmon frequency could be changed by the tuning of the chemical potential.
description: 26 pages,8 figures
The action-angle dual of an integrable Hamiltonian system of Ruijsenaars--Schneider--van Diejen type
Creators: name: Feher, L.
name: Marshall, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Integrable deformations of the hyperbolic and trigonometric ${\mathrm{BC}}_n$ Sutherland models were recently derived via Hamiltonian reduction of certain free systems on the Heisenberg doubles of ${\mathrm{SU}}(n,n)$ and ${\mathrm{SU}}(2n)$, respectively. As a step towards constructing action-angle variables for these models, we here apply the same reduction to a different free system on the double of ${\mathrm{SU}}(2n)$ and thereby obtain a novel integrable many-body model of Ruijsenaars--Schneider--van Diejen type that is in action-angle duality with the respective deformed Sutherland model.
description: 21 pages, v2: typos removed, references updated