cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
GNN-based End-to-end Delay Prediction in Software Defined Networking
Creators: name: Ge, Zhun
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: GNN
SDN
End-to-end Delay Estimation
STGCN

description: Nowadays, computer networks have always been complicated deployment for both the scientific and industry groups as they attempt to comprehend and analyze network performance as well as design efficient procedures for their operation. In software-defined networking (SDN), predicting latency (delay) is essential for enhancing performance, power consumption and resource utilization in meeting its significant latency requirements. In this thesis, we present a graph-based formulation of Abilene Network and other topologies and apply a Graph Neural Network (GNN)-based model, Spatial-Temporal Graph Convolutional Network (STGCN), to predict end-to-end packet delay on this formulation. The evaluation uses STGCN to compare with other machine learning methods: Multiple Linear Regression (MLR), Extreme Gradient Boosting (XGBOOST), Random Forest (RF), and Neural Network (NN). Datasets in use include Abilene, 15-node scale-free, 24-node GEANT2, and 50-node networks. Notably, our GNN-based methodology can achieve 97.0%, 95.9%, 96.1%, and 63.1% less root mean square error (RMSE) in the most complex network situation than the baseline predictor, MLR, XGBOOST and RF, respectively. All the experiments show that STGCN has good prediction performance with small and stable prediction errors. This thesis illustrates the feasibility and benefits of a GNN approach in predicting end-to-end delay in software-defined networks.
Holographic Dark Energy from Fluid/Gravity Duality Constraint by Cosmological Observations
Creators: name: Pourhassan, Behnam
name: Bonilla, Alexander
name: Faizal, Mir
name: Abreu, Everton M. C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we obtain a holographic model of dark energy using the fluid/gravity duality. This model will be dual to a higher dimensional Schwarzschild black hole, and we would use fluid/gravity duality to relate to the parameters of this black hole to such a cosmological model. We will also analyze the thermodynamics of such a solution, and discuss the stability model. Finally, we use cosmological data to constraint the parametric space of this dark energy model. Thus, we will use observational data to perform cosmography for this holographic model based on fluid/gravity duality.
description: 20 pages, 5 figures. accepted in Phys. Dark Univ
Haldane Topological Orders in Motzkin Spin Chains
Creators: name: Barbiero, L.
name: Dell'Anna, L.
name: Trombettoni, A.
name: Korepin, V. E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Motzkin spin chains are frustration-free models whose ground-state is a combination of Motzkin paths. The weight of such path contributions can be controlled by a deformation parameter t. As a function of the latter these models, beside the formation of domain wall structures, exhibit a Berezinskii-Kosterlitz-Thouless phase transition for t=1 and gapped Haldane topological orders with constant decay of the string order parameters for t < 1. By means of numerical calculations we show that the topological properties of the Haldane phases depend on the spin value. This allows to classify different kinds of hidden antiferromagnetic Haldane gapped regimes associated to nontrivial features like symmetry-protected topological order. Our results from one side allow to clarify the physical properties of Motzkin frustration-free chains and from the other suggest them as a new interesting and paradigmatic class of local spin Hamiltonians.
description: 5 pages, 3 figures
Dissipation-driven integrable fermionic systems: from graded Yangians to exact nonequilibrium steady states
Creators: name: Ilievski, Enej
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the Lindblad master equation approach, we investigate the structure of steady-state solutions of open integrable quantum lattice models, driven far from equilibrium by incoherent particle reservoirs attached at the boundaries. We identify a class of boundary dissipation processes which permits to derive exact steady-state density matrices in the form of graded matrix-product operators. All the solutions factorize in terms of vacuum analogues of Baxter's Q-operators which are realized in terms of non-unitary representations of certain finite dimensional subalgebras of graded Yangians. We present a unifying framework which allows to solve fermionic models and naturally incorporates higher-rank symmetries. This enables to explain underlying algebraic content behind most of the previously-found solutions.
description: 28 pages, 5 figures + appendices
Non-linear stationary solutions in realistic models for analog black-hole lasers
Creators: name: de Nova, Juan Ramón Muñoz
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: From both a theoretical and an experimental point of view, Bose-Einstein condensates are good candidates for studying gravitational analogues of black holes and black-hole lasers. In particular, a recent experiment has shown that a black-hole laser configuration can be created in the laboratory. However, the most considered theoretical models for analog black-hole lasers are quite difficult to implement experimentally. In order to fill this gap, we devote this work to present more realistic models for black-hole lasers. For that purpose, we first prove that, by symmetrically extending every black-hole configuration, one can obtain a black-hole laser configuration with an arbitrarily large supersonic region. Based on this result, we propose the use of an attractive square well and a double delta-barrier, which can be implemented using standard experimental tools, for studying black-hole lasers. We also compute the different stationary states of these setups, identifying the true ground state of the system and discussing the relation between the obtained solutions and the appearance of dynamical instabilities.
description: 28 pages, 8 figures
Státní vodohospodářský plán republiky Československé
Creators: name: Skupina Pro Státní Vodohospodářský Plán Republiky Československé
Publisher: name: Zenodo
Year: 1955
Subjects: maps
hydrology
archival documents

description: Soubor vodohospodářských map, v nichž jsou vyznačeny plánované (a realizované) úpravy vodních toků – regulace. Informace o regulačních činnostech ve vodních tocích jsou klíčové pro poznání původní podoby vodního toku a jsou užívány při výzkumu říční kulturní krajiny. Obsah mapových listů může být významným pramenem pro rekonstrukci krajiny (eroze lesů, rybníky, úpravy toků apod.). Fond tvoří celkem 8 kusů desek uložených v Archeologickém ústavu AV ČR, Praha, v. v. i. Jednotlivé desky obsahují dokumentaci k povodí řek Vltavy, Labe, Ohře a Bíliny. Dokumentace byla součástí Státního vodohospodářského plánu republiky Československé, rok vydání 1955. Digitalizace fondu byla realizována prostřednictvím programu podpory digitalizace ohrožených jedinečných archiválii Akademie věd ČR. Uložení: Archeologický ústav AV ČR, Praha, v. v. i. Fond: Vodohospodářské mapy Původce fondu: Skupina pro Státní vodohospodářský plán republiky Československé ve Vodohospodářském rozvojovém a investičním středisku Praha.
Barjols, détail de la décoration de la vitrine d'une épicerie en lien avec la fête de la saint Marcel.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Almost all four-particle pure states are determined by their two-body marginals
Creators: name: Wyderka, Nikolai
name: Huber, Felix
name: Gühne, Otfried
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that generic pure states (states drawn according to the Haar measure) of four particles of equal internal dimension are uniquely determined among all other pure states by their two-body marginals. In fact, certain subsets of three of the two-body marginals suffice for the characterization. We also discuss generalizations of the statement to pure states of more particles, showing that these are almost always determined among pure states by three of their $(n-2)$-body marginals. Finally, we present special families of symmetric pure four-particle states that share the same two-body marginals and are therefore undetermined. These are four-qubit Dicke states in superposition with generalized GHZ states.
description: 6 pages, 2 figures, v2: more results, final version
Warm dark matter constraints from high-$z$ Direct Collapse Black Holes using the JWST
Creators: name: Dayal, Pratika
name: Choudhury, Tirthankar Roy
name: Pacucci, Fabio
name: Bromm, Volker
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use a semi-analytic model, ${\it Delphi}$, that jointly tracks the dark matter and baryonic assembly of high-redshift ($z \simeq 4-20$) galaxies to gain insight on the number density of Direct Collapse Black Hole (DCBH) hosts in three different cosmologies: the standard Cold Dark Matter (CDM) model and two Warm Dark Matter (WDM) models with particle masses of 3.5 and 1.5 keV. Obtaining the Lyman-Werner (LW) luminosity of each galaxy from ${\it Delphi}$, we use a clustering bias analysis to identify all, pristine halos with a virial temperature $T_{vir}>=10^4$ K that are irradiated by a LW background above a critical value as, DCBH hosts. In good agreement with previous studies, we find the DCBH number density rises from $\sim10^{-6.1}$ to $\sim 10^{-3.5}\, \mathrm{cMpc^{-3}}$ from $z\simeq 17.5$ to $8$ in the CDM model using a critical LW background value of $30 J_{21}$ (where $J_{21}= 10^{-21} \, {\rm erg\, s^{-1}\, Hz^{-1} \, cm^{-2} \, sr^{-1}}$). We find that a combination of delayed structure formation and an accelerated assembly of galaxies results in a later metal-enrichment and an accelerated build-up of the LW background in the 1.5 keV WDM model, resulting in DCBH hosts persisting down to much lower redshifts ($z \simeq 5$) as compared to CDM where DCBH hosts only exist down to $z \simeq 8$. We end by showing how the expected colours in three different bands of the Near Infrared Camera (NIRCam) onboard the forthcoming James Webb Space Telescope (${\it JWST}$) can be used to hunt for potential $z \simeq 5-9$ DCBHs, allowing hints on the WDM particle mass.
description: Accepted to MNRAS with minor revision
Kualitas artikel jurnal TEKNODIK
Creators: name: Mulyaningsih, Indrya
Publisher: name: Zenodo
Year: 2022
Subjects: artikel ilmiah
pendidikan
publikasi ilmiah

description: Disampaikan pada Kegiatan Evaluasi Pengelolaan Jurnal TEKNODIK, Jumat, 23 Desember 2022 yang diselenggarakan oleh Jurnal Teknodik, Pusat Data dan Teknologi Informasi (Pusdatin), Sekretariat Jenderal Kementerian Pendidikan, Kebudayaan, Riset dan Teknologi (Setjen Kemdikbudristek)
Semimetallic and charge-ordered $α$-(BEDT-TTF)$_2$I$_3$: on the role of disorder in dc transport and dielectric properties
Creators: name: Ivek, Tomislav
name: Čulo, Matija
name: Kuveždić, Marko
name: Tutiš, Eduard
name: Basletić, Mario
name: Mihaljević, Branimir
name: Tafra, Emil
name: Tomić, Silvia
name: Löhle, Anja
name: Dressel, Martin
name: Schweitzer, Dieter
name: Korin-Hamzić, Bojana
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: $α$-(BEDT-TTF)$_2$I$_3$ is a prominent example of charge ordering among organic conductors. In this work we explore the details of transport within the charge-ordered as well as semimetallic phase at ambient pressure. In the high-temperature semimetallic phase, the mobilities and concentrations of both electrons and holes conspire in such a way to create an almost temperature-independent conductivity as well as a low Hall effect. We explain these phenomena as a consequence of a predominantly inter-pocket scattering which equalizes mobilities of the two types of charge carriers. At low temperatures, within the insulating charge-ordered phase two channels of conduction can be discerned: a temperature-dependent activation which follows the mean-field behavior, and a nearest-neighbor hopping contribution. Together with negative magnetoresistance, the latter relies on the presence of disorder. The charge-ordered phase also features a prominent dielectric peak which bears a similarity to relaxor ferroelectrics. Its dispersion is determined by free-electron screening and pushed by disorder well below the transition temperature. The source of this disorder can be found in the anion layers which randomly perturb BEDT-TTF molecules through hydrogen bonds.
description: 10 pages, 7 figures, submitted to Physical Review B
СТАТИСТИКА РЕЗУЛЬТАТОВ РАЗЛИЧНЫХ СПОСОБОВ ПЛАСТИКА ГРЫЖЕВЫХ ВОРОТ И МЕТОДОВ ПРОТЕЗЕРИВАНИЕ ПРИ ПОСЛЕОПЕРАЦИОННЫХ ВЕНТРАЛЬНЫХ ГРЫЖАХ
Creators: name: Сувонов, Мадаминжон
name: Шоназаров, Искандар
Publisher: name: Zenodo
Year: 2025

description: Размер грыжевого выпячивания является не единственным критерием, позволяющим отнести пациента к группе с обширными и гигантскимивентральными грыжами. Очень важным помимо размеров грыжи, являются такие параметры, как размер грыжевого дефекта, наличие рецидивных грыж и число рецидивов. В настоящее время совершенствуются полимерные материалы с целью профилактики ранних и поздних послеоперационных осложнений имплантации протезов, разработаны различные варианты протезной пластики, однако число осложнений не имеют явной тенденции к снижению, что позволяет сделать основной вывод – идеального материала для протезной аллопластики вентральных грыж еще не разработано. При оценке непосредственных результатов хирургического лечения вентральных грыж, снижение частоты наиболее частых раневых ретенционных осложнений, остается актуальной проблемой и в настоящее время.
Data Management and Reproducibility: A Tasting Buffet
Creators: name: Tee, Shern Ren
Publisher: name: Zenodo
Year: 2023

description: A presentation about data management and reproducibility, targeted towards computational molecular science, delivered at the AIBN Centre for Theoretical and Computational Molecular Science (CTCMS) Symposium 2023 (https://sites.google.com/view/ctcms-symposium-2023/home). This presentation was substantially inspired by The Turing Way's training material (https://zenodo.org/record/7684733) and Daniel Katz's Computational Reproducibility presentation (https://github.com/danielskatz/repro-fdtd1d). This presentation was prepared in Quarto primarily targeting RevealJS, and the linked file is an export to PDF using Google Chrome. An online version of this presentation is hosted at https://srtee.github.io/ctsym_2023/ with source code in https://github.com/srtee/ctsym_2023. The presentation included an interactive Markdown notes activity hosted at https://hackmd.io/@srtee/ctcms-2023-repro.
TECNOLOGIAS NA AGRICULTURA 4.0
Creators: name: Fernanda Borges de França ARAUJO
name: Odilon Rodrigues de ARAUJO JUNIOR
name: Gustavo de Godoi SANTANA
Publisher: name: Zenodo
Year: 2024
Subjects: Tecnologias
Agricultura 4.0
Ferramentas
Machine learning

description: RESUMO

Sabe-se que existe uma ampla dificuldade tanto no conhecimento quanto na utilização da tecnologia nas propriedades rurais, pois trata-se de um processo que não ocorre instantaneamente, sendo uma tarefa complexa e de longo prazo. Mesmo que as pesquisas e estudos possibilitem que os produtores optem por decisões que disponibilizam melhores chances de maximizar seus resultados, diminuindo assim os riscos, ressalta-se ainda que existem significativas taxas de desperdícios e problemas que acometem a produtividade e a saúde da terra, levando em consideração que as pesquisas e estudos não apontam as necessidades ou a real situação das culturas. Assim, o problema de pesquisa foi, quais as ferramentas de agricultura 4.0 que os produtores podem usar no cenário moderno? Pensando nisso, esta pesquisa se justifica em compreender melhor sobre as novas tecnologias disponíveis e seus benefícios, auxiliando não só com conteúdo acadêmico, mas socialmente os profissionais da área e os produtores rurais no Brasil. Esta pesquisa possui como proposta de objetivo geral o de analisar sobre a tecnologia na agricultura, com foco na agricultura 4.0. Para a elaboração dessa pesquisa, a proposta metodológica aplicada para materialização do referido estudo foi utilizada pesquisa bibliográfica exploratória e descritiva com base em livros, revistas e artigos científicos para formulação de referências e informações atinentes ao tema. Nesse intuito busca-se  estudar a essência do respectivo trabalho com ênfase na agricultura 4.0. com o estudo realizado se pode compreender melhor sobre os benefícios e desvantagens, além de observar sobre o leque de opções existentes para usar dentro da agricultura, a tecnologia vem sempre se renovando e recriando cada vez, apesar de alguns itens serem de investimento alto, porém o retorno que temos é bem considerável, alertando ainda que é necessário que se tenha maior controle hegemônico dessas tecnologias, visando assim alcançar uma sociedade onde a terra, o trabalho e as técnicas aplicadas nas plantações convivam de forma harmônica.
A one-shot achievability result for quantum state redistribution
Creators: name: Anshu, Anurag
name: Jain, Rahul
name: Warsi, Naqueeb Ahmad
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We study the problem of entanglement-assisted quantum state redistribution in the one-shot setting and provide a new achievability result on the quantum communication required. Our bounds are in terms of the max-relative entropy and the hypothesis testing relative entropy. We use the techniques of convex split and position-based decoding to arrive at our result. We show that our result is upper bounded by the result obtained in Berta, Christandl, Touchette (2016).
description: 22 pages, close to published version. Classical results now appear in arXiv:1707.03619
Photometry and Proper Motions of M, L, and T Dwarfs from the Pan-STARRS1 3$π$ Survey
Creators: name: Best, William M. J.
name: Magnier, Eugene A.
name: Liu, Michael C.
name: Aller, Kimberly M.
name: Zhang, Zhoujian
name: Burgett, W. S.
name: Chambers, K. C.
name: Draper, P.
name: Flewelling, H.
name: Kaiser, N.
name: Kudritzki, R. -P.
name: Metcalfe, N.
name: Tonry, J. L.
name: Wainscoat, R. J.
name: Waters, C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a catalog of 9888 M, L and T dwarfs detected in the Pan-STARRS1 3$π$ Survey (PS1), covering three-quarters of the sky. Our catalog contains nearly all known objects of spectral types L0-T2 in the PS1 field, with objects as early as M0 and as late as T9, and includes PS1, 2MASS, AllWISE, and Gaia DR1 photometry. We analyze the different types of photometry reported by PS1, and use two types in our catalog to maximize both depth and accuracy. Using parallaxes from the literature, we construct empirical SEDs for field ultracool dwarfs spanning 0.5-12 $μ$m. We determine typical colors of M0-T9 dwarfs, and we highlight the distinctive colors of subdwarfs and young objects. Our catalog includes 492 L dwarfs detected in $r_{\rm P1}$, the largest sample of L dwarfs detected at such blue wavelengths. We combine astrometry from PS1, 2MASS, and Gaia DR1 to calculate new proper motions for our catalog. We achieve a median precision of 2.9 mas yr$^{-1}$, a factor of $\approx$3-10 improvement over previous large catalogs. Our catalog contains proper motions for 2405 M6-T9 dwarfs and includes the largest set of homogeneous proper motions for L and T dwarfs published to date, 406 objects for which there were no previous measurements, and 1176 objects for which we improve upon previous literature values. We analyze the kinematics of ultracool dwarfs in our catalog and find evidence that bluer but otherwise generic late-M and L field dwarfs (i.e., not subdwarfs) tend to have higher tangential velocities compared to typical field objects. With the public release of the PS1 data, this survey will continue to be an essential tool for characterizing the ultracool dwarf population.
description: ApJS, in press. 48 pages, 18 figues, 7 tables. This version adds Gaia DR1 photometry, updated PS1 astrometry, parallaxes from Liu et al (2016), comparisons to proper motions from the MoVeRS and LaTE-MoVeRS catalogs, more discussion of binaries, and minor adjustments to catalog membership. Updated electronic tables are available at http://www.ifa.hawaii.edu/~wbest/Will_Best/PS1_MLT_Dwarfs.html
$J/Ψ$ Photoproduction in Peripheral AA Collisions
Creators: name: Ducati, M. B. Gay
name: Martins, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The exclusive photoproduction of the heavy vector mesons $J/Ψ$ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. Using the light-cone color dipole formalism, it was calculated the rapidity distribution in two centrality bins 50\%-70\% and 70\%-90\% in order to evaluate its robustness in extrapolating down to smaller impact parameter. It is introduced a modified photon flux, without change in the photonuclear cross section in relation to the ultraperipheral (UPC) case. Results were obtained for the two regions analized, which presented a maximum difference of 27\% in frontal rapidity for the two regions. Comparing the results for $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV, it was verified an increase of approximately half the one obtained in ultraperipheral regime in the central rapidity region.
Understanding Maintenance as a Turing Way
Creators: name: Garside, Daniel
name: Steele, Anne Lee
Publisher: name: Zenodo
Year: 2023
Subjects: open source
maintenance

description: The Turing Way - an open guidebook for data science and research - emerged in response to the crisis of reproducibility in science, amidst a growing movement for new ways of managing research data: through initiatives such as the FAIR principles and various open source software projects. As the movement has matured, it has also entered a new phase that has asked different questions about its sustainability, governance, funding, and diversity. As these questions have evolved, so has the wider landscape of technology more broadly, pushing back against the ethos of ‘moving fast and breaking things’ as questions of maintenance come to the forefront. This talk discusses open source maintenance in the context of The Turing Way, within computational communities and open science more broadly: extending into the culture of research itself. It discusses the tensions between developing new ideas to change research culture and the cultivation of maintenance as an ethos for developing, contributing to, and participating in an open source community like The Turing Way.
The SIC Question: History and State of Play
Creators: name: Fuchs, Christopher A.
name: Hoang, Michael C.
name: Stacey, Blake C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent years have seen significant advances in the study of symmetric informationally complete (SIC) quantum measurements, also known as maximal sets of complex equiangular lines. Previously, the published record contained solutions up to dimension 67, and was with high confidence complete up through dimension 50. Computer calculations have now furnished solutions in all dimensions up to 151, and in several cases beyond that, as large as dimension 844. These new solutions exhibit an additional type of symmetry beyond the basic definition of a SIC, and so verify a conjecture of Zauner in many new cases. The solutions in dimensions 68 through 121 were obtained by Andrew Scott, and his catalogue of distinct solutions is, with high confidence, complete up to dimension 90. Additional results in dimensions 122 through 151 were calculated by the authors using Scott's code. We recap the history of the problem, outline how the numerical searches were done, and pose some conjectures on how the search technique could be improved. In order to facilitate communication across disciplinary boundaries, we also present a comprehensive bibliography of SIC research.
description: 16 pages, 1 figure, many references; v3: updating bibliography, dimension eight hundred forty four
Light-cone and diffusive propagation of correlations in a many-body dissipative system
Creators: name: Bernier, Jean-Sebastien
name: Tan, Ryan
name: Bonnes, Lars
name: Guo, Chu
name: Poletti, Dario
name: Kollath, Corinna
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the propagation of correlations after a sudden interaction change in a strongly interacting quantum system in contact with an environment. In particular, we consider an interaction quench in the Bose-Hubbard model, deep within the Mott-insulating phase, under the effect of dephasing. We observe that dissipation effectively speeds up the propagation of single-particle correlations while reducing their coherence. In contrast, for two-point density correlations, the initial ballistic propagation regime gives way to diffusion at intermediate times. Numerical simulations, based on a time-dependent matrix product state algorithm, are supplemented by a quantitatively accurate fermionic quasi-particle approach providing an intuitive description of the initial dynamics in terms of holon and doublon excitations.
description: 5 pages, 3 figures
Integral group rings of solvable groups with trivial central units
Creators: name: Bächle, Andreas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16U60, 20C15, 20E45

description: The integral group ring $\mathbb{Z} G$ of a group $G$ has only trivial central units, if the only central units of $\mathbb{Z} G$ are $\pm z$ for $z$ in the center of $G$. We show that the order of a finite solvable group $G$ with this property, can only have $2$, $3$, $5$ and $7$ as prime divisors, by linking this to inverse semi-rational groups and extending one result on this class of groups. We also classify the Frobenius groups whose integral group rings have only trivial central units.
description: [v4]: 13 pages. Final version. To appear in "Forum Mathematicum" (already available online)
The placement of the head that maximizes predictability. An information theoretic approach
Creators: name: Ferrer-i-Cancho, Ramon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The minimization of the length of syntactic dependencies is a well-established principle of word order and the basis of a mathematical theory of word order. Here we complete that theory from the perspective of information theory, adding a competing word order principle: the maximization of predictability of a target element. These two principles are in conflict: to maximize the predictability of the head, the head should appear last, which maximizes the costs with respect to dependency length minimization. The implications of such a broad theoretical framework to understand the optimality, diversity and evolution of the six possible orderings of subject, object and verb are reviewed.
description: in press in Glottometrics
Adiabatic pumping solutions in global AdS
Creators: name: Carracedo, Pablo
name: Mas, Javier
name: Musso, Daniele
name: Serantes, Alexandre
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a family of very simple stationary solutions to gravity coupled to a massless scalar field in global AdS. They involve a constantly rising source for the scalar field at the boundary and thereby we name them pumping solutions. We construct them numerically in $D=4$. They are regular and, generically, have negative mass. We perform a study of linear and nonlinear stability and find both stable and unstable branches. In the latter case, solutions belonging to different sub-branches can either decay to black holes or to limiting cycles. This observation motivates the search for non-stationary exactly time-periodic solutions which we actually construct. We clarify the role of pumping solutions in the context of quasistatic adiabatic quenches. In $D=3$ the pumping solutions can be related to other previously known solutions, like magnetic or translationally-breaking backgrounds. From this we derive an analytic expression.
description: 23+12 pages, 12 figures. Version published in JHEP
Character formulae in category $\mathcal O$ for exceptional Lie superalgebras $D(2|1;ζ)$
Creators: name: Cheng, Shun-Jen
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B10

description: We establish character formulae for representations of the one-parameter family of simple Lie superalgebras $D(2|1;ζ)$. We provide a complete description of the Verma flag multiplicities of the tilting modules and the projective modules in the BGG category $\mathcal O$ of $D(2|1;ζ)$-modules of integral weights, for any complex parameter $ζ$. The composition factors of all Verma modules in $\mathcal O$ are then obtained.
description: 36 pages, final version, to appear in Transformation Groups
Modified convex hull pricing for power markets with price-sensitive load
Creators: name: Borokhov, Vadim
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider a general power market with price-sensitive consumer bids and non-convexities originating from supply (start-up and no-load costs, nonzero minimum output limits of generating units, etc.) and demand. The convex hull (minimum-uplift) pricing method produces the set of power prices that minimizes the total uplift payments to the market players needed to compensate their potential profits lost by accepting the centralized dispatch solution. All opportunities to supply (consume) any other output (consumption) volumes allowed by market player individual operational constraints are considered as foregone in the convex hull pricing method. We modify the convex hull pricing algorithm by defining for each market player a modified individual feasible set that is utilized in the lost profit calculation. These sets are based on the output (consumption) volumes that are economically and technologically feasible in the centralized dispatch. The new pricing method results in the generally different set of market prices and lower (or equal) total uplift payment compared to the convex hull pricing algorithm.
description: Paper extended to include general formulation of the proposed method (applicable to multi-period and multi-node power system) and examples with inter-temporal constraint, two-node power system, and demand-side non-convexity
Deep Neural Networks to Enable Real-time Multimessenger Astrophysics
Creators: name: George, Daniel
name: Huerta, E. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Machine Learning (cs.LG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Gravitational wave astronomy has set in motion a scientific revolution. To further enhance the science reach of this emergent field, there is a pressing need to increase the depth and speed of the gravitational wave algorithms that have enabled these groundbreaking discoveries. To contribute to this effort, we introduce Deep Filtering, a new highly scalable method for end-to-end time-series signal processing, based on a system of two deep convolutional neural networks, which we designed for classification and regression to rapidly detect and estimate parameters of signals in highly noisy time-series data streams. We demonstrate a novel training scheme with gradually increasing noise levels, and a transfer learning procedure between the two networks. We showcase the application of this method for the detection and parameter estimation of gravitational waves from binary black hole mergers. Our results indicate that Deep Filtering significantly outperforms conventional machine learning techniques, achieves similar performance compared to matched-filtering while being several orders of magnitude faster thus allowing real-time processing of raw big data with minimal resources. More importantly, Deep Filtering extends the range of gravitational wave signals that can be detected with ground-based gravitational wave detectors. This framework leverages recent advances in artificial intelligence algorithms and emerging hardware architectures, such as deep-learning-optimized GPUs, to facilitate real-time searches of gravitational wave sources and their electromagnetic and astro-particle counterparts.
description: v3: Added results submitted to PRD on October 18, 2017; incorporated suggestions from the community
Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at sqrt(s) = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at sqrt(s) = 13 TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 inverse femtobarns. The search includes events with jets from the hadronic decays of a W or Z boson. The data are found to be in agreement with the predicted background contributions from standard model processes. The results are presented in terms of simplified models in which dark matter particles are produced through interactions involving a vector, axial-vector, scalar, or pseudoscalar mediator. Vector and axial-vector mediator particles with masses up to 1.95 TeV, and scalar and pseudoscalar mediator particles with masses up to 100 and 430 GeV respectively, are excluded at 95% confidence level. The results are also interpreted in terms of the invisible decays of the Higgs boson, yielding an observed (expected) 95% confidence level upper limit of 0.44 (0.56) on the corresponding branching fraction. The results of this search provide the strongest constraints on the dark matter pair production cross section through vector and axial-vector mediators at a particle collider. When compared to the direct detection experiments, the limits obtained from this search provide stronger constraints for dark matter masses less than 5, 9, and 550 GeV, assuming vector, scalar, and axial-vector mediators, respectively. The search yields stronger constraints for dark matter masses less than 200 GeV, assuming a pseudoscalar mediator, when compared to the indirect detection results from Fermi-LAT.
description: Replaced with the published version. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-16-037
Conditional Mutual Information and Quantum Steering
Creators: name: Kaur, Eneet
name: Wang, Xiaoting
name: Wilde, Mark M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum steering has recently been formalized in the framework of a resource theory of steering, and several quantifiers have already been introduced. Here, we propose an information-theoretic quantifier for steering called intrinsic steerability, which uses conditional mutual information to measure the deviation of a given assemblage from one having a local hidden-state model. We thus relate conditional mutual information to quantum steering and introduce monotones that satisfy certain desirable properties. The idea behind the quantifier is to suppress the correlations that can be explained by an inaccessible quantum system and then quantify the remaining intrinsic correlations. A variant of the intrinsic steerability finds operational meaning as the classical communication cost of sending the measurement choice and outcome to an eavesdropper who possesses a purifying system of the underlying bipartite quantum state that is being measured.
description: v2: 17 pages, 1 figure, minor changes, accepted for publication in Physical Review A
Jumps in the Archimedean Height
Creators: name: Brosnan, Patrick
name: Pearlstein, Gregory
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We introduce a pairing on local intersection cohomology groups of variations of pure Hodge structure, which we call the asymptotic height pairing. Our original application of this pairing was to answer a question on the Ceresa cycle posed by R. Hain and D. Reed. (This question has since been answered independently by Hain.) Here we apply the pairing to show that a certain analytic line bundle, called the biextension line bundle, defined in terms of normal functions, always extends to any smooth partial compactification of the base. We show that the the pairing on intersection cohomology governs the extension of the natural metric on this line bundle studied by Hain and Reed (as well as, more recently, by several other authors). We also prove a positivity property of the asypmtotic height pairing, which generalize results of a recent preprint of J. Burgos Gill, D. Holmes and R. de Jong, along with a continuity property of the pairing in the normal function case. Moreover, we show that the asymptotic height pairing arises in a natural way from certain Mumford-Grothendieck biextensions associated to normal functions.
description: Added a section on meromorphic extensions of line bundles
Quantum memory and non-demolition measurement of single phonon state with nitrogen-vacancy centers ensemble
Creators: name: Wang, Rui-xia
name: Cai, Kang
name: Yin, Zhang-qi
name: Long, Gui-lu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In diamond, the mechanical vibration induced strain can lead to interaction between the mechanical mode and the nitrogen-vecancy (NV) centers. In this work, we propose to utilize the strain induced coupling for the quantum non-demolition (QND) single phonon measurement and memory in diamond. The single phonon in a diamond mechanical resonator can be perfectly absorbed and emitted by the NV centers ensemble (NVE) with adiabatically tuning the microwave driving. An optical laser drives the NVE to the excited states, which have much larger coupling strength to the mechanical mode. By adiabatically eliminating the excited states under large detuning limit, the effective coupling between the mechanical mode and the NVE can be used for QND measurement of the single phonon state. Under realistic experimental conditions, we numerically simulate the scheme. It is found that the fidelity of the absorbing and emitting process can reach a much high value. The overlap between the input and the output phonon shapes can reach $98.57\%$.
description: 7 pages, 3 figures
Barjols, route de Brignoles, tannerie Plauchud, préparation du char pour la procession de la saint Marcel.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Why do similarity matching objectives lead to Hebbian/anti-Hebbian networks?
Creators: name: Pehlevan, Cengiz
name: Sengupta, Anirvan
name: Chklovskii, Dmitri B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Modeling self-organization of neural networks for unsupervised learning using Hebbian and anti-Hebbian plasticity has a long history in neuroscience. Yet, derivations of single-layer networks with such local learning rules from principled optimization objectives became possible only recently, with the introduction of similarity matching objectives. What explains the success of similarity matching objectives in deriving neural networks with local learning rules? Here, using dimensionality reduction as an example, we introduce several variable substitutions that illuminate the success of similarity matching. We show that the full network objective may be optimized separately for each synapse using local learning rules both in the offline and online settings. We formalize the long-standing intuition of the rivalry between Hebbian and anti-Hebbian rules by formulating a min-max optimization problem. We introduce a novel dimensionality reduction objective using fractional matrix exponents. To illustrate the generality of our approach, we apply it to a novel formulation of dimensionality reduction combined with whitening. We confirm numerically that the networks with learning rules derived from principled objectives perform better than those with heuristic learning rules.
description: Accepted for publication in Neural Computation
True nature of the Curzon-Ahlborn efficiency
Creators: name: Apertet, Yann
name: Ouerdane, Henni
name: Goupil, Christophe
name: Lecoeur, Philippe
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The Curzon-Ahlborn efficiency has long served as the definite upper bound for the thermal efficiency at maximum output power, and has thus shaped the development of finite-time thermodynamics. In this paper, we repeal the ruling consensus according to which it has a genuine universal character that can be derived from linear irreversible thermodynamics. We demonstrate that the Curzon-Ahlborn efficiency should instead properly be associated with a particular case of nonlinear heat engines, and we derive a generalized expression for the efficiency at maximum power beyond the restrictive case of linear models.
The Emergence of Consensus: A Primer
Creators: name: Baronchelli, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Multiagent Systems (cs.MA)
subject: Social and Information Networks (cs.SI)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The origin of population-scale coordination has puzzled philosophers and scientists for centuries. Recently, game theory, evolutionary approaches and complex systems science have provided quantitative insights on the mechanisms of social consensus. However, the literature is vast and widely scattered across fields, making it hard for the single researcher to navigate it. This short review aims to provide a compact overview of the main dimensions over which the debate has unfolded and to discuss some representative examples. It focuses on those situations in which consensus emerges 'spontaneously' in absence of centralised institutions and covers topic that include the macroscopic consequences of the different microscopic rules of behavioural contagion, the role of social networks, and the mechanisms that prevent the formation of a consensus or alter it after it has emerged. Special attention is devoted to the recent wave of experiments on the emergence of consensus in social systems.
Sign problem in $Z_3$-symmetric effective Polyakov-line model
Creators: name: Hirakida, Takehiro
name: Sugano, Junpei
name: Kouno, Hiroaki
name: Takahashi, Junichi
name: Yahiro, Masanobu
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: As an effective model corresponding to $Z_3$-symmetric QCD ($Z_3$-QCD), we construct a $Z_3$-symmetric effective Polyakov-line model ($Z_3$-EPLM) by using the logarithmic fermion effective action. Since $Z_3$-QCD tends to QCD in the zero temperature limit, $Z_3$-EPLM also agrees with the ordinary effective Polyakov-line model (EPLM) there; note that ordinary EPLM does not possess $Z_3$ symmetry. Our main purpose is to discuss a sign problem appearing in $Z_3$-EPLM. The action of $Z_3$-EPLM is real, when the Polyakov line is not only real but also its $Z_3$ images. This suggests that the sign problem becomes milder in $Z_3$-EPLM than in EPLM. In order to confirm this suggestion, we do lattice simulations for both EPLM and $Z_3$-EPLM by using the reweighting method with the phase quenched approximation. In the low-temperature region, the sign problem is milder in $Z_3$-EPLM than in EPLM. We also propose a new reweighting method. This makes the sign problem very weak in $Z_3$-EPLM.
description: 16 pages, 38 figures
Two-loop Anomalous Dimensions for Four-Fermi Operators in Supersymmetric Theories
Creators: name: Hisano, Junji
name: Kuwahara, Takumi
name: Omura, Yuji
name: Sato, Takeki
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive two-loop anomalous dimensions for four-Fermi operators in supersymmetric theories using the effective Kahler potential. We introduce the general forms in generic gauge theories and apply our results to the flavor-changing operators in (minimal) supersymmetric standard models.
description: 20 pages, Version accepted for publication in Nuclear Physics B
Non-gaussianity of the critical 3d Ising model
Creators: name: Rychkov, Slava
name: Simmons-Duffin, David
name: Zan, Bernardo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss the 4pt function of the critical 3d Ising model, extracted from recent conformal bootstrap results. We focus on the non-gaussianity Q - the ratio of the 4pt function to its gaussian part given by three Wick contractions. This ratio reveals significant non-gaussianity of the critical fluctuations. The bootstrap results are consistent with a rigorous inequality due to Lebowitz and Aizenman, which limits Q to lie between 1/3 and 1.
description: 10 pages, 6 figures; v2: refs added; v3: refs updated, published version; v4: acknowledgement added