cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diagonalization of the Heun-Askey-Wilson operator, Leonard pairs and the algebraic Bethe ansatz
Creators: name: Baseilhac, Pascal
name: Pimenta, Rodrigo A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An operator of Heun-Askey-Wilson type is diagonalized within the framework of the algebraic Bethe ansatz using the theory of Leonard pairs. For different specializations and the generic case, the corresponding eigenstates are constructed in the form of Bethe states, whose Bethe roots satisfy Bethe ansatz equations of homogeneous or inhomogenous type. For each set of Bethe equations, an alternative presentation is given in terms of `symmetrized' Bethe roots. Also, two families of on-shell Bethe states are shown to generate two explicit bases on which a Leonard pair acts in a tridiagonal fashion. In a second part, the (in)homogeneous Baxter T-Q relations are derived. Certain realizations of the Heun-Askey-Wilson operator as second q-difference operators are introduced. Acting on the Q-polynomials, they produce the T-Q relations. For a special case, the Q-polynomial is identified with the Askey-Wilson polynomial, which allows one to obtain the solution of the associated Bethe ansatz equations. The analysis presented can be viewed as a toy model for studying integrable models generated from the Askey-Wilson algebra and its generalizations. As examples, the q-analog of the quantum Euler top and various types of three-sites Heisenberg spin chains in a magnetic field with inhomogeneous couplings, three-body and boundary interactions are solved. Numerical examples are given. The results also apply to the time-band limiting problem in signal processing.
description: 49 pp; v2: Compared with published version, typos corrected in eqs. (1.7), (3.75), eq. between (3.76)-(3.77) and Prop. 3.7
Functional inequalities for two-level concentration
Creators: name: Barthe, Franck
name: Strzelecki, Michal
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Probability measures satisfying a Poincar{é} inequality are known to enjoy a dimension free concentration inequality with exponential rate. A celebrated result of Bobkov and Ledoux shows that a Poincar{é} inequality automatically implies a modified logarithmic Sobolev inequality. As a consequence the Poincar{é} inequality ensures a stronger dimension free concentration property , known as two-level concentration. We show that a similar phenomenon occurs for the Latala-Oleszkiewicz inequalities, which were devised to uncover dimension free concentration with rate between exponential and Gaussian. Motivated by the search for counterexamples to related questions, we also develop analytic techniques to study functional inequalities for probability measures on the line with wild potentials.
The geometry of the knot concordance space
Creators: name: Cochran, Tim D.
name: Harvey, Shelly
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: Most of the 50-year history of the study of the set of knot concordance classes, C, has focused on its structure as an abelian group. Here we take a different approach, namely we study C as a metric space admitting many natural geometric operators, especially satellite operators. We consider several knot concordance spaces, corresponding to different categories of concordance, and two different metrics. We establish the existence of quasi-n-flats for every n, implying that C admits no quasi-isometric embedding into a finite product of (Gromov) hyperbolic spaces. We show that every satellite operator is a quasi-homomorphism P: C --- C with respect to the metric given by the slice genus. We show that winding number one satellite operators induce quasi-isometries. We prove that strong winding number one satellite operators induce isometric embeddings for certain metrics. By contrast, winding number zero satellite operators are bounded functions and hence quasi-contractions. These results contribute to the conjecture that C is a fractal space. We establish various other results about the large-scale geometry of arbitrary satellite operators.
description: 20 pages, only minor changes in version 2
Drivers of user loyalty intention and commitment to a search engine: An exploratory study
Creators: name: Sirdeshmukh, D
name: Ahmad, NB
name: Khan, MS
name: Ashill, Nicholas
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: subject: 150599 Marketing not elsewhere classified
subject: FOS: Economics and business
subject: 150699 Tourism not elsewhere classified
subject: 150399 Business and Management not elsewhere classified

description: Based on consumer value and technology usage research, we propose a conceptual model linking search engine performance to search engine value, user satisfaction with the search engine and search engine reputation for innovation, and ultimately to user loyalty intention and commitment. The results of a study based on data collected from search engine users provide support for a majority of proposed relationships. Functional performance of the search engine affected search engine value. Value was found to be a full mediator of the relationship between functional performance and user satisfaction and between functional performance and reputation for innovation. Aesthetic performance did not affect search engine value but did have a significant effect on reputation for innovation. User satisfaction and search engine reputation for innovation, included as backward looking and forward looking antecedents respectively, influenced user loyalty intention and commitment as anticipated. Implications of the results are discussed and future research avenues are offered.
Spectral properties of the exponential distance matrix
Creators: name: Butler, Steve
name: Coper, Elizabeth
name: Li, Aaron
name: Lorenzen, Kate
name: Schopick, Zoe
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C05, 05C12, 15A18, 15B57

description: Given a graph $G$, the exponential distance matrix is defined entry-wise by letting the $(u,v)$-entry be $q^{\text{dist}(u,v)}$, where $\text{dist}(u,v)$ is the distance between the vertices $u$ and $v$ with the convention that if vertices are in different components, then $q^{\text{dist}(u,v)}=0$. In this paper, we will establish several properties of the characteristic polynomial (spectrum) for this matrix, give some families of graphs which are uniquely determined by their spectrum, and produce cospectral constructions.
The targum (1932:Sept. 21 - 1932:Sept. 28)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1932

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
The targum (1932:Oct. 1 - 1932:Oct. 29)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1932

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Learning Interpretable Error Functions for Combinatorial Optimization Problem Modeling
Creators: name: Richoux, Florian
name: Baffier, Jean-François
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In Constraint Programming, constraints are usually represented as predicates allowing or forbidding combinations of values. However, some algorithms exploit a finer representation: error functions. Their usage comes with a price though: it makes problem modeling significantly harder. Here, we propose a method to automatically learn an error function corresponding to a constraint, given a function deciding if assignments are valid or not. This is, to the best of our knowledge, the first attempt to automatically learn error functions for hard constraints. Our method uses a variant of neural networks we named Interpretable Compositional Networks, allowing us to get interpretable results, unlike regular artificial neural networks. Experiments on 5 different constraints show that our system can learn functions that scale to high dimensions, and can learn fairly good functions over incomplete spaces.
title: Alpinmeteorologische Effekte ausgelöst durch Hügellandschaften wie den Wienerwald
Creators: name: Bauer, Clemens
Year: 2023

description: Der Wienerwald ist eine Hügellandschaft, dessen höchste Erhebung im Vergleich zum Umland rund \SI{600}{m} bis \SI{700}{m} hoch ist. Er stellt den nordöstlichen Ausläufer der Europäischen Alpen dar. In der Vergangenheit wurden in der nahen Umgebung des Wienerwaldes trotz der geringen topographischen Höhe wiederholt alpinmeteorologische Effekte beobachtet. Die bisherigen Arbeiten und Messkampagnen auf diesem Fachgebiet befassen sich hauptsächlich mit Mittel- und Hochgebirgen wie den Alpen in Mitteleuropa oder den Rocky Montains in Nordamerika. Neben einer qualitativen Aussage über das Auftreten eines bestimmten Effektes soll daher auch untersucht werden, ob und welche Adaptionen beim Übergang dieser Konzepte auf eine Hügellandschaft vollzogen werden müssen. Konkret werden sechs Effekte aus dem Fachgebiet der Alpinmeteorologie in Zusammenhang mit dem Wienerwald untersucht. Dies geschieht zum einen durch statistische Auswertungen, zum anderen durch die Analyse von acht Fallbeispielen. Hierfür stehen neben zeitlich hochauflösenden Mess- und Beobachtungsdaten, Fernerkundungsdaten wie Satellitenbildern oder Radardaten auch Analysemodelle zur Verfügung. Diese Arbeit zeigt, dass jeder der betrachteten Effekt zumindest in abgeschwächter Form auch in Zusammenhang mit dem Wienerwald beobachtet werden kann. Eine Adaption zu den Konzepten aus höheren Gebirgen ist hierbei nahezu überall nötig.
description: The Wienerwald is a hilly landscape representing the most northeastern parts of the european alps. The highest mountain within this region is about \SI{600}{m} to \SI{700}{m} higher than the surrounding area. In the past, alpine meteorology effects have been observed repeatedly nearby the Wienerwald. Existing studies and field experiments in the field of the alpine meteorology are mostly considering middle or high montains like the European Alps or the Rocky Mountains in North America. Therefore, a qualitative statement about the occurrence of the effects in relation to a hilly landscape should be conducted. In addition it should also be investigated which adaptations have to be carried out during the transition of the concepts to a hilly landscape like the Wienerwald. In this master's thesis, six effects from the field of alpine meteorology are investigated in connection with the Wienerwald. This is done partly by statistical evaluations and partly by the analysis of eight case studies. For this purpose, high temporal resolution measurements, observations, remote sensing data such as satellite images or radar data and analysis models are available. It turns out that each of the considered alpinemeteorolgical effects can be observed in connection with the Wienerwald, at least in a weakened form. An adaptation to the concepts from higher mountains is necessary almost everywhere.
NIEL Dose Dependence for Solar Cells Irradiated with Electrons and Protons
Creators: name: Baur, C.
name: Gervasi, M.
name: Nieminen, P.
name: Pensotti, S.
name: Rancoita, P. G.
name: Tacconi, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The investigation of solar cells degradation and the prediction of its end-of-life performance is of primary importance in the preparation of a space mission. In the present work, we investigate the reduction of solar-cells' maximum power resulting from irradiations with electrons and protons. Both GaAs single junction and GaInP/GaAs/Ge triple junction solar cells were studied. The results obtained indicate how i) the dominant radiation damaging mechanism is due to atomic displacements, ii) the relative maximum power degradation is almost independent of the type of incoming particle, i.e., iii) to a first approximation, the fitted semi-empirical function expressing the decrease of maximum power depends only on the absorbed NIEL dose, and iv) the actual displacement threshold energy value (Ed=21 eV) accounts for annealing treatments, mostly due to self-annealing induced effects. Thus, for a given type of solar cell, a unique maximum power degradation curve can be determined as a function of the absorbed NIEL dose. The latter expression allows one to predict the performance of those solar cells in space radiation environment.
description: To appear on the Proceedings of the 13th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Villa Olmo (Como, Italy), 23--27 October, 2013, to be published by World Scientific (Singapore)
Sensory sensitivity as predictive of fruit and vegetable acceptance in young infants
Creators: name: Tabatabaei, Neeka
Publisher: name: No Publisher Supplied
Year: 2018

description: The early introduction of fruits and vegetables to infants is an area gaining interest due to the rapid rise of childhood obesity. There is a clear low intake of fruits and vegetables amongst all age groups in the United States. Sensory factors such as taste, smell, temperature, and texture may play a role in fruit and vegetable acceptance in infants who may be oversensitive. A number of sensitivity and temperament scales have been developed, but none have explored the relationship between actual fruit and vegetable consumption by infants and specific sensory properties of foods. The purpose of this study was to develop and implement a novel questionnaire assessing the relationship between sensory sensitivity and fruit and vegetable acceptance infants less than 1 year of age. The questionnaire combined questions from existing scales addressing food responsiveness, sensory threshold in the context of temperament, sensory sensitivity, and maternal and infant fruit and vegetable acceptance, as well as novel questions addressing sensory sensitivity. Questionnaires were completed by mothers utilizing services at the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) in New Brunswick, NJ. After analyzing the data collected, results showed that when separated into age groups, domains in the overall sensory sensitivity scale showed a relationship with fruit and vegetable acceptance, most notably in the youngest age group of 3 to 6 months. The more sensitive to these domains (i.e. taste, smell, texture, temperature, appearance) the infants were, the lower their fruit and vegetable acceptance. Additionally, the more fruits and vegetables the mother liked, the higher acceptance her infant had. Future findings, if consistent with ours, can lead to early nutrition interventions aimed to increase fruit and vegetable intake, creating a positive path and healthier future.
The Picard rank conjecture for the Hurwitz spaces of degree up to five
Creators: name: Deopurkar, Anand
name: Patel, Anand
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that the rational Picard group of the simple Hurwitz space ${\mathcal H}_{d,g}$ is trivial for $d$ up to five. We also relate the rational Picard groups of the Hurwitz spaces to the rational Picard groups of the Severi varieties of nodal curves on Hirzebruch surfaces.
description: Added a figure. Fixed typos and numerical mistakes
Indeterminism, causality and information: Has physics ever been deterministic?
Creators: name: Del Santo, Flavio
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A tradition handed down among physicists maintains that classical physics is a perfectly deterministic theory capable of predicting the future with absolute certainty, independently of any interpretations. It also tells that it was quantum mechanics that introduced fundamental indeterminacy into physics. We show that there exist alternative stories to be told in which classical mechanics, too, can be interpreted as a fundamentally indeterministic theory. On the one hand, this leaves room for the many possibilities of an open future, yet, on the other, it brings into classical physics some of the conceptual issues typical of quantum mechanics, such as the measurement problem. We discuss here some of the issues of an alternative, indeterministic classical physics and their relation to the theory of information and the notion of causality.
description: 8 pages, 3 figures
Quantifying the evidence for Dark Matter in CoGeNT data
Creators: name: Davis, Jonathan H.
name: McCabe, Christopher
name: Boehm, Celine
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform an independent analysis of data from the CoGeNT direct detection experiment to quantify the evidence for dark matter recoils. We critically re-examine the assumptions that enter the analysis, focusing specifically on the separation of bulk and surface events, the latter of which constitute a large background. This separation is performed using the event rise-time, with the surface events being slower on average. We fit the rise-time distributions for the bulk and surface events with a log-normal and Pareto distribution (which gives a better fit to the tail in the bulk population at high rise-times) and account for the energy-dependence of the bulk fraction using a cubic spline. Using Bayesian and frequentist techniques and additionally investigating the effect of varying the rise-time cut, the bulk background spectrum and bin-sizes, we conclude that the CoGeNT data show a preference for light dark matter recoils at less than 1 sigma.
description: 26 pages, 17 figures. v1: Typeset with REVTeX. v2: Minor changes to the text to match the published version. Typeset with JCAP style
The targum (1932:Nov. 2 - 1932:Nov. 23)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1932

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Master symmetry and time dependent symmetries of the differential-difference KP equation
Creators: name: Khanizadeh, Farbod
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We first obtain the master symmetry of the differential-difference KP equation.Then we show how this master symmetry, through sl(2;C)-representation of the equation, can construct generators of time dependent symmetries.
Counterfactual quantum certificate authorization
Creators: name: H., Akshata Shenoy
name: Srikanth, R.
name: Srinivas, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a multi-partite protocol in a counterfactual paradigm. In counterfactual quantum cryptography, secure information is transmitted between two spatially separated parties even when there is no physical travel of particles transferring the information between them. We propose here a tripartite counterfactual quantum protocol for the task of certificate authorization. Here a trusted third party, Alice, authenticates an entity Bob (e.g., a bank) that a client Charlie wishes to securely transact with. The protocol is counterfactual with respect to either Bob or Charlie. We prove its security against a general incoherent attack, where Eve attacks single particles.
description: 6 pages, 2 figures, close to the published version
Mapping Metadata - Improving Dataset Discipline Classification
Creators: name: Ninkov, Anton
Publisher: name: Zenodo
Year: 2022

description: There is increasing interest in developing metrics for datasets but investigations into data sharing, reuse and citation practices remain relatively nascent. The lack in research and indicator development is, in part, due to the limited amount of metadata for published datasets, in particular discipline information. In this paper, we present some efforts from the Meaningful Data Counts (MDC) project to improve discipline classification for datasets available in DataCite. Specifically, we describe two case studies on mapping existing discipline classification systems to the Organisation for Economic Co-operation and Development’s (OECD) revised Field of Science and Technology (FOS) discipline classification system (Organisation for Economic Co-operation and Development, 2007) and the lessons we have learned.
The targum (1932:Dec. 3 - 1932:Dec. 14)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1932

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Two repelling random walks on $\mathbb Z$
Creators: name: Prado, Fernando P. A.
name: Coletti, Cristian F.
name: Rosales, Rafael A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35 (Primary) 37C10 (Secondary)

description: We consider two interacting random walks on $\mathbb{Z}$ such that the transition probability of one walk in one direction decreases exponentially with the number of transitions of the other walk in that direction. The joint process may thus be seen as two random walks reinforced to repel each other. The strength of the repulsion is further modulated in our model by a parameter $β\geq 0$. When $β= 0$ both processes are independent symmetric random walks on $\mathbb{Z}$, and hence recurrent. We show that both random walks are further recurrent if $β\in (0,1]$. We also show that these processes are transient and diverge in opposite directions if $β> 2$. The case $β\in (1,2]$ remains widely open. Our results are obtained by considering the dynamical system approach to stochastic approximations.
description: 17 pages. Added references and corrected typos. Revised the argument for the convergence to equilibria of the vector field. Improved the proof for the recurrence when beta belongs to (0,1); leading to the removal of a previous conjecture
The Kardar-Parisi-Zhang equation with spatially correlated noise: a unified picture from nonperturbative renormalization group
Creators: name: Kloss, Thomas
name: Canet, Léonie
name: Delamotte, Bertrand
name: Wschebor, Nicolás
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the scaling regimes of the Kardar-Parisi-Zhang equation in the presence of spatially correlated noise with power law decay $D(p) \sim p^{-2ρ}$ in Fourier space, using a nonperturbative renormalization group approach. We determine the full phase diagram of the system as a function of $ρ$ and the dimension $d$. In addition to the weak-coupling part of the diagram, which agrees with the results from Refs. [Europhys. Lett. 47, 14 (1999), Eur. Phys. J. B 9, 491 (1999)], we find the two fixed points describing the short-range (SR) and long-range (LR) dominated strong-coupling phases. In contrast with a suggestion in the references cited above, we show that, for all values of $ρ$, there exists a unique strong-coupling SR fixed point that can be continuously followed as a function of $d$. We show in particular that the existence and the behavior of the LR fixed point do not provide any hint for 4 being the upper critical dimension of the KPZ equation with SR noise.
description: 13 pages, 5 figures, final version
Observation of electroweak production of two jets and a $Z$-boson pair
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Electroweak symmetry breaking explains the origin of the masses of elementary particles through their interactions with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering of massive vector bosons with spin one allows the nature of electroweak symmetry breaking to be probed. Among all processes related to vector-boson scattering, the electroweak production of two jets and a $Z$-boson pair is a rare and important one. Here we report the observation of this process from proton-proton collision data corresponding to an integrated luminosity of 139/fb recorded at a centre-of-mass energy of 13 TeV with the ATLAS detector at the Large Hadron Collider. We consider two different final states originating from the decays of the $Z$-boson pair - one containing four charged leptons and the other containing two charged leptons and two neutrinos. The hypothesis of no electroweak production is rejected with a statistical significance of 5.7 $σ$, and the measured cross-section for electroweak production is consistent with the standard model prediction. In addition, we report cross-sections for inclusive production of a $Z$-boson pair and two jets for the two final states.
description: 36 pages in total, author list starting page 20, 3 figures, 3 tables, published in Nature Physics. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-19/. Updated version with changes that occurred during journal review
Geometric rough paths on infinite dimensional spaces
Creators: name: Grong, Erlend
name: Nilssen, Torstein
name: Schmeding, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 22E65, 53C17, 60H10, 60L20, 60L50

description: Similar to ordinary differential equations, rough paths and rough differential equations can be formulated in a Banach space setting. For $α\in (1/3,1/2)$, we give criteria for when we can approximate Banach space-valued weakly geometric $α$-rough paths by signatures of curves of bounded variation, given some tuning of the Hölder parameter. We show that these criteria are satisfied for weakly geometric rough paths on Hilbert spaces. As an application, we obtain Wong-Zakai type result for function space valued martingales using the notion of (unbounded) rough drivers.
description: 23 pages, v4: major revision
Stable invariance of the restricted Lie algebra structure of Hochschild cohomology
Creators: name: Briggs, Benjamin
name: Degrassi, Lleonard Rubio y
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16E40, 16D90 (Primary) 17B50, 13D03, 18D50 (Secondary)

description: We show that the restricted Lie algebra structure on Hochschild cohomology is invariant under stable equivalences of Morita type between self-injective algebras. Thereby we obtain a number of positive characteristic stable invariants, such as the $p$-toral rank of $\mathrm{HH}^1(A,A)$. We also prove a more general result concerning Iwanaga-Gorenstein algebras, using a more general notion of stable equivalences of Morita type. Several applications are given to commutative algebra and modular representation theory. These results are proven by first establishing the stable invariance of the $B_\infty$-structure of the Hochschild cochain complex. In the appendix we explain how the $p$-power operation on Hochschild cohomology can be seen as an artifact of this $B_\infty$-structure. In particular, we establish well-definedness of the $p$-power operation, following some -- originally topological -- methods due to May, Cohen and Turchin, using the language of operads.
description: 20 pages, v3: small changes in the abstract and in the introduction
Improved Thermoelectric Properties in (1-x)LaCoO3/(x)La0.7Sr0.3CoO3 Composite
Creators: name: Kumar, Ashutosh
name: Sivaprahasam, D.
name: Thakur, Ajay D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A high Seebeck coefficient (S), large electrical conductivity (σ), and reduced thermal conductivity (κ) are required to achieve a high figure-of-merit (zT) in an ideal thermoelectric (TE) system, which is challenging in a single system due to the interdependence of TE parameters. Composite approach is promising to manipulate the TE parameters. In this study, TE properties of (1-x)LaCoO3/(x)La0.7Sr0.3CoO3 (0.00 \leq x \leq 0.05) composite is discussed. The structural analysis confirms individual phases in the composite, which is further supported by electron microscopy analysis. The x-ray photoelectron analysis indicates that oxygen vacancies (VO) are present in the parent LaCoO3 system and increase with the addition of La0.7Sr0.3CoO3 (LSCO) in the composite. The increase in VO raises the degenerate states of cobalt and hence improves S in the composites. Temperature variation in S and σ are consistent with the spin-state transition and shows the correlation between these two parameters. The reduction in κ and σ with the addition of ball-milled La0.7Sr0.3CoO3 in the composite is attributed to the enhanced phonon-phonon and charge carrier scattering, respectively. A synergistic effect of enhanced S and reduced κ} result in five times improvement in zT of the composite compared to the parent LaCoO3 system at 800 K. This approach also improves the operating temperature for LaCoO3 based systems.
description: 26 pages, 10 figures, 4 tables
Surge and extended overvoltage testing of HVDC cable systems
JWG B4/B1/C4.73
Creators: name: Saltzer, Markus
name: Nguyen-Tuan, Minh
name: Crippa, Alessandro
name: Wenig, Simon
name: Goertz, Max
name: Saad, Hani
Publisher: name: SEE
Year: 2018

Abstract
Electromagnetic signals from bare strange stars
Creators: name: Mannarelli, Massimo
name: Pagliaroli, Giulia
name: Parisi, Alessandro
name: Pilo, Luigi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The crystalline color superconducting phase is believed to be the ground state of deconfined quark matter for sufficiently large values of the strange quark mass. This phase has the remarkable property of being more rigid than any known material. It can therefore sustain large shear stresses, supporting torsional oscillations of large amplitude. The torsional oscillations could lead to observable electromagnetic signals if strange stars have a crystalline color superconducting crust. Indeed, considering a simple model of strange star with a bare quark matter surface, it turns out that a positive charge is localized in a narrow shell about ten Fermi thick beneath the star surface. The electrons needed to neutralize the positive charge of quarks spill in the star exterior forming an electromagnetically bounded atmosphere hundreds of Fermi thick. When a torsional oscillation is excited, for example by a stellar glitch, the positive charge oscillates with typical kHz frequencies, for a crust thickness of about one-tenth of the stellar radius, to hundreds of Hz, for a crust thickness of about nine-tenths of the stellar radius. Higher frequencies, of the order of few GHz, can be reached if the star crust is of the order of few centimeters thick. We estimate the emitted power considering emission by an oscillating magnetic dipole, finding that it can be quite large, of the order of $10^{45}$ erg/s for a thin crust. The associated relaxation times are very uncertain, with values ranging between microseconds and minutes, depending on the crust thickness. The radiated photons will be in part absorbed by the electronic atmosphere, but a sizable fraction of them should be emitted by the star.
description: 11 pages, 5 figures, corrected the emission power, added a discussion on the temperature effects, added references. Almost matches the version accepted for publication in Phys. Rev. D
Semantic search in data repositories
Creators: name: Tykhonov, Vyacheslav
Publisher: name: Zenodo
Year: 2023

description: This paper reports about current research about the semantic enrichment of data and the implementation of enriched metadata fields into search possibilities. Different data sources when brought together in a portal – as in the case of the Odissei Portal – come with their own metadata standards, and sometimes also datamodels. Obviously, data/metadata harmonisation is a central challenge. Thus, not surprisingly in making the Odissei portal a lot of different data stewards and data scientists work on harmonisation pathways. This paper presents one facet of this work, executed at DANS and demonstrated on the Dataverse repository platform which the Odissei portal is built on. The core of the work concerns automatically supported enrichment of metadata (fields) based on datamining of the data itself and linking to external controlled vocabularies. Semantic web technology provides the tools. We demonstrate first findings and discuss further engineering challenges.
Detection of An Unidentified Emission Line in the Stacked X-ray spectrum of Galaxy Clusters
Creators: name: Bulbul, Esra
name: Markevitch, Maxim
name: Foster, Adam
name: Smith, Randall K.
name: Loewenstein, Michael
name: Randall, Scott W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We detect a weak unidentified emission line at E=(3.55-3.57)+/-0.03 keV in a stacked XMM spectrum of 73 galaxy clusters spanning a redshift range 0.01-0.35. MOS and PN observations independently show the presence of the line at consistent energies. When the full sample is divided into three subsamples (Perseus, Centaurus+Ophiuchus+Coma, and all others), the line is significantly detected in all three independent MOS spectra and the PN "all others" spectrum. It is also detected in the Chandra spectra of Perseus with the flux consistent with XMM (though it is not seen in Virgo). However, it is very weak and located within 50-110eV of several known faint lines, and so is subject to significant modeling uncertainties. On the origin of this line, we argue that there should be no atomic transitions in thermal plasma at this energy. An intriguing possibility is the decay of sterile neutrino, a long-sought dark matter particle candidate. Assuming that all dark matter is in sterile neutrinos with m_s=2E=7.1 keV, our detection in the full sample corresponds to a neutrino decay mixing angle sin^2(2theta)=7e-11, below the previous upper limits. However, based on the cluster masses and distances, the line in Perseus is much brighter than expected in this model. This appears to be because of an anomalously bright line at E=3.62 keV in Perseus, possibly an Ar XVII dielectronic recombination line, although its flux would be 30 times the expected value and physically difficult to understand. In principle, such an anomaly might explain our line detection in other subsamples as well, though it would stretch the line energy uncertainties. Another alternative is the above anomaly in the Ar line combined with the nearby 3.51 keV K line also exceeding expectation by factor 10-20. Confirmation with Chandra and Suzaku, and eventually Astro-H, are required to determine the nature of this new line.(ABRIDGED)
description: Accepted for publication in ApJ, 27 pages, 15 figures. ApJ version has the abridged abstract and Figure 6 in the ApJ version has only the XMM MOS spectrum of the full sample
An infinity operad of normalized cacti
Creators: name: Bonatto, Luciana Basualdo
name: Chettih, Safia
name: Linton, Abigail
name: Raynor, Sophie
name: Robertson, Marcy
name: Wahl, Nathalie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: We show that normalized cacti form an $\infty$-operad in the form of a dendroidal space satisfying a weak Segal condition. To do this, we introduce a new topological operad of bracketed trees and an enrichment of the dendroidal category $Ω$.
description: 48 pages, many figures, comments welcome!
Multiple transient memories in experiments on sheared non-Brownian suspensions
Creators: name: Paulsen, Joseph D.
name: Keim, Nathan C.
name: Nagel, Sidney R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A system with multiple transient memories can remember a set of inputs but subsequently forgets almost all of them, even as they are continually applied. If noise is added, the system can store all memories indefinitely. The phenomenon has recently been predicted for cyclically sheared non-Brownian suspensions. Here we present experiments on such suspensions, finding behavior consistent with multiple transient memories and showing how memories can be stabilized by noise.
description: 5 pages, 4 figures
Large-Scale Structure and Gravitational Waves III: Tidal Effects
Creators: name: Schmidt, Fabian
name: Pajer, Enrico
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The leading locally observable effect of a long-wavelength metric perturbation corresponds to a tidal field. We derive the tidal field induced by scalar, vector, and tensor perturbations, and use second order perturbation theory to calculate the effect on the locally measured small-scale density fluctuations. For sub-horizon scalar perturbations, we recover the standard perturbation theory result ($F_2$ kernel). For tensor modes of wavenumber $k_L$, we find that effects persist for $k_Lτ\gg 1$, i.e. even long after the gravitational wave has entered the horizon and redshifted away, i.e. it is a "fossil" effect. We then use these results, combined with the "ruler perturbations" of arXiv:1204.3625, to predict the observed distortion of the small-scale matter correlation function induced by a long-wavelength tensor mode. We also estimate the observed signal in the B mode of the cosmic shear from a gravitational wave background, including both tidal (intrinsic alignment) and projection (lensing) effects. The non-vanishing tidal effect in the $k_Lτ\gg 1$ limit significantly increases the intrinsic alignment contribution to shear B modes, especially at low redshifts $z \lesssim 2$.
description: 24 pages, 4 figures; v2: added references and corrected typos; v3: corrected factor of 2 in Sec. VI and intrinsic alignment matching, conclusions unchanged
Asymptotics of the determinant of discrete Laplacians on triangulated and quadrangulated surfaces
Creators: name: Izyurov, Konstantin
name: Khristoforov, Mikhail
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B20, 58J52,

description: Consider a surface $Ω$ with a boundary obtained by gluing together a finite number of equilateral triangles, or squares, along their boundaries, equipped with a flat unitary vector bundle. Let $Ω^δ$ be the discretization of this surface by a bi-periodic lattice with enough symmetries, scaled to have mesh size $δ$. We show that the logarithm of the product of non-zero eigenvalues of the discrete Laplacian acting on the sections of the bundle is asymptotic to \[ A|Ω^δ|+B|\partialΩ^δ|+C\logδ+D+o(1). \] Here $A$ and $B$ are lattice-dependent constants; $C$ is an explicit constant depending on the bundle, the angles at conical singularities and at corners of the boundary, and $D$ is a sum of lattice-dependent contributions from singularities and a universal term that can be interpreted as a zeta-regularization of the continuum Laplacian on $Ω$. We allow for Dirichlet or Neumann boundary conditions, or mixtures thereof. Our proof is based on an integral formula for the determinant in terms of theta function, and the functional Central limit theorem.
description: 34 pages. Version 2: added a discussion of self-adjoint extensions of the Laplacian, the associated Dirichlet forms and semi-groups in the continuum. The explicit values of the constant B ("boundary tension") computed for several lattices
Topological liquid crystal superstructures as structured light lasers
Creators: name: Papič, Miha
name: Mur, Urban
name: Ravnik, Miha
name: Muševič, Igor
name: Humar, Matjaž
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Liquid crystals (LCs) form an extremely rich range of self-assembled topological structures with artificially or naturally created topological defects. Some of the main applications of LCs are various optical and photonic devices, where compared to their solid state counterparts soft photonic systems are fundamentally different in terms of unique properties such as self-assembly, self-healing, large tunability, sensitivity to external stimuli and biocompatibility. Here we show that complex tunable microlasers emitting structured light can be generated from self-assembled topological LC superstructures containing topological defects inserted into a thin Fabry-Pérot microcavity. The topology and geometry of the LC superstructure determine the structuring of the emitted light by providing complex three dimensionally varying optical axis and order parameter singularities, also affecting the topology of the light polarization. The microlaser can be switched between modes by an electric field and its wavelength can be tuned with temperature. The proposed soft matter microlaser approach opens new direction in soft matter photonics research, where structured light with specifically tailored intensity and polarization fields could be designed and implemented.
Ramzil Huda Zarista_2020_J._Phys. _Conf._Ser._1554_012031.pdf
Creators: name: Ramzil Huda Zarista (RHZ)
Publisher: name: figshare
Year: 2020
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Mathematics
Probing the superconducting ground state of the noncentrosymmetric superconductors CaTSi3 (T = Ir, Pt) using muon-spin relaxation and rotation
Creators: name: Singh, R. P.
name: Hillier, A. D.
name: Chowdhury, D.
name: Barker, J. A. T.
name: Paul, D. McK.
name: Lees, M. R.
name: Balakrishnan, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The superconducting properties of CaTSi3 (where T = Pt and Ir) have been investigated using muon spectroscopy. Our muon-spin relaxation results suggest that in both these superconductors time-reversal symmetry is preserved, while muon-spin rotation data show that the temperature dependence of the superfluid density is consistent with an isotropic s-wave gap. The magnetic penetration depths and upper critical fields determined from our transverse-field muon-spin rotation spectra are found to be 448(6) and 170(6) nm, and 3800(500) and 1700(300) G, for CaPtSi3 and CaIrSi3 respectively. The superconducting coherence lengths of the two materials have also been determined and are 29(2) nm for CaPtSi3 and 44(4) nm for CaIrSi3.
description: 6 pages, 7 figures