cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distributed manipulation of two-qubit entanglement with coupled continuous variables
Creators: name: Shen, Li-Tuo
name: Chen, Rong-Xin
name: Wu, Huai-Zhi
name: Yang, Zhen-Biao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the dynamics of two qubits separately sent through two coupled resonators, each initially containing a coherent state field. We present analytical arguments and numerical calculations for the qubit-field system under different two-qubit initial states, photon hopping strengths, and detunings. In far off-resonant regime, the maximal entanglement of two qubits can be generated with the initial qubit state in which one qubit is in the excited state and the other is in the ground state, and the initially maximal two-qubit entanglement can be frozen and fully revived even for large mean photon number. When the qubits are both initially in their excited states or ground states, the qubit-qubit entanglement birth and death apparently appear in the regime where the photon hopping strength is close to qubit-field detuning, and its peaks do not decrease monotonically as the interaction time increases. It is interesting to observe that when there is photon hopping strength between two fields, the field-field entanglement can be larger than one and increases as the initial amplitude of the coherent state grows. By postselecting the fields both in their coherent states, the entanglement of two initially unentangled qubits can be largely improved. Our present setup is fundamental for the distributed quantum information processing and applicable to different physical qubit-resonator systems.
description: 7 pages, 10 figures, comments are welcome!
Dynamic charge Kondo effect and a slave fermion approach to the Mott transition
Creators: name: Long, Zhuoqing
name: Wang, Jiangfan
name: Yang, Yi-feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Mott transition plays a key role in strongly correlated physics but its nature is not yet fully understood. Motivated by recent development of Schwinger boson approach for the Kondo lattice, we propose in this work a novel slave fermion algorithm to study the Mott transition. Upon local approximation, our method yields a phase diagram with a zero-temperature continuous (Mott) metal-insulator transition at finite Coulomb interaction $U$ for the half-filled one-band Hubbard model on a square lattice, and the resistivity exhibits a critical scaling around the quantum Widom line. We argue that the Mott transition may be associated with a dynamic charge Kondo effect of local degenerate doublon and holon states, causing sharp resonances on the doublon/holon and electron spectra. The transition is pushed to $U=0$ once intersite antiferromagnetic correlations are included, in agreement with exact numerical calculations. Our approach captures some essential features of the Mott transition and offers an alternative angle to view this important problem. It can be extended to study other correlated electron models with more complicated local interactions.
description: 10 pages, 4 figures
Setting Parameters for Biological Models With ANIMO
Creators: name: Schivo, Stefano
name: Scholma, Jetse
name: Karperien, Marcel
name: Post, Janine N.
name: van de Pol, Jaco
name: Langerak, Rom
Publisher: name: arXiv
Year: 2014
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: ANIMO (Analysis of Networks with Interactive MOdeling) is a software for modeling biological networks, such as e.g. signaling, metabolic or gene networks. An ANIMO model is essentially the sum of a network topology and a number of interaction parameters. The topology describes the interactions between biological entities in form of a graph, while the parameters determine the speed of occurrence of such interactions. When a mismatch is observed between the behavior of an ANIMO model and experimental data, we want to update the model so that it explains the new data. In general, the topology of a model can be expanded with new (known or hypothetical) nodes, and enables it to match experimental data. However, the unrestrained addition of new parts to a model causes two problems: models can become too complex too fast, to the point of being intractable, and too many parts marked as "hypothetical" or "not known" make a model unrealistic. Even if changing the topology is normally the easier task, these problems push us to try a better parameter fit as a first step, and resort to modifying the model topology only as a last resource. In this paper we show the support added in ANIMO to ease the task of expanding the knowledge on biological networks, concentrating in particular on the parameter settings.
A hemispherical dynamo model : Implications for the Martian crustal magnetization
Creators: name: Dietrich, Wieland
name: Wicht, Johannes
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Mars Global Surveyor measurements revealed that the Martian crust is strongly magnetized in the southern hemisphere while the northern hemisphere is virtually void of magnetization. Two possible reasons have been suggested for this dichotomy: A once more or less homogeneously magnetization may have been destroyed in the northern hemisphere by, for example, resurfacing or impacts. The alternative theory we further explore here assumes that the dynamo itself produced a hemispherical field. We use numerical dynamo simulations to study under which conditions a spatial variation of the heat flux through the core-mantle boundary (CMB) may yield a strongly hemispherical surface field. We assume that the early Martian dynamo was exclusively driven by secular cooling and we mostly concentrate on a cosine CMB heat flux pattern with a minimum at the north pole, possibly caused by the impacts responsible for the northern lowlands. This pattern consistently triggers a convective mode which is dominated by equatorially anti-symmetric and axisymmetric (EAA) thermal winds. Convective up- and down-wellings and thus radial magnetic field production then tend to concentrate in the southern hemisphere which is still cooled efficiently while the northern hemisphere remains hot. The dynamo changes from an alpha^2- for a homogeneous CMB heat flux to an alpha-Omega-type in the hemispherical configuration. These dynamos reverse on time scales of about 10 kyrs. This too fast to allow for the more or less unidirectional magnetization of thick crustal layer required to explain the strong magnetization in the southern hemisphere.
Injection of $κ$-like Suprathermal Particles into Diffusive Shock Acceleration
Creators: name: Kang, Hyesung
name: Petrosian, Vahe
name: Ryu, Dongsu
name: Jones, T. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider a phenomenological model for the thermal leakage injection in the diffusive shock acceleration (DSA) process, in which suprathermal protons and electrons near the shock transition zone are assumed to have the so-called $κ$-distributions produced by interactions of background thermal particles with pre-existing and/or self-excited plasma/MHD waves or turbulence. The $κ$-distribution has a power-law tail, instead of an exponential cutoff, well above the thermal peak momentum. So there are a larger number of potential seed particles with momentum, above that required for participation in the DSA process. As a result, the injection fraction for the $κ$-distribution depends on the shock Mach number much less severely compared to that for the Maxwellian distribution. Thus, the existence of $κ$-like suprathermal tails at shocks would ease the problem of extremely low injection fractions, especially for electrons and especially at weak shocks such as those found in the intracluster medium. We suggest that the injection fraction for protons ranges $10^{-4}-10^{-3}$ for a $κ$-distribution with $10 < κ_p < 30$ at quasi-parallel shocks, while the injection fraction for electrons becomes $10^{-6}-10^{-5}$ for a $κ$-distribution with $κ_e < 2$ at quasi-perpendicular shocks. For such $κ$ values the ratio of cosmic ray electrons to protons naturally becomes $K_{e/p}\sim 10^{-3}-10^{-2}$, which is required to explain the observed ratio for Galactic cosmic rays.
description: 10 pages, 4 figures, submitted to Astrophysical Journal
Психоэмоциональные особенности пациентов с аутодеструктивным дерматозом
Creators: name: Пашинян А.Г.
name: Субботина Р.А.
name: Акопян А.Н.
name: Донцова Е.В.
name: Джаваева Д.Г.
Publisher: name: Лечебное дело
Year: 2018
Subjects: АУТОАГРЕССИЯ
ПСИХОСОМАТИКА
СТРЕСС
ИНФАНТИЛИЗМ
АРТИФИЦИАЛЬНЫЙ ДЕРМАТИТ
ПСИХОДЕРМАТОЛОГИЯ
SELF-AGGRESSION
PSYCHOSOMATICS
STRESS
INFANTILISM
ARTIFICIAL DERMATITIS
PSYCHODERMATOLOGY

description: В статье освещены современные представления о психодерматологии. У 1/3 дерматологических пациентов психические расстройства могут быть либо причиной, либо следствием дерматологических заболеваний. Дерматит, возникающий вследствие сознательного причинения больными самоповреждений кожи, волос, ногтей или слизистых оболочек для удовлетворения психологической потребности, это искусственный (артифициальный) дерматит. Патомимиям подвержены инфантильные, чувствительные и эмоциональные личности с высокой степенью выраженности агрессивности и тревожности.
Enabling Long-term Fairness in Dynamic Resource Allocation
Creators: name: Si-Salem, T.
name: Iosifidis, G.
name: Neglia, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Multiagent Systems (cs.MA)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We study the fairness of dynamic resource allocation problem under the $α$-fairness criterion. We recognize two different fairness objectives that naturally arise in this problem: the well-understood slot-fairness objective that aims to ensure fairness at every timeslot, and the less explored horizon-fairness objective that aims to ensure fairness across utilities accumulated over a time horizon. We argue that horizon-fairness comes at a lower price in terms of social welfare. We study horizon-fairness with the regret as a performance metric and show that vanishing regret cannot be achieved in presence of an unrestricted adversary. We propose restrictions on the adversary's capabilities corresponding to realistic scenarios and an online policy that indeed guarantees vanishing regret under these restrictions. We demonstrate the applicability of the proposed fairness framework to a representative resource management problem considering a virtualized caching system where different caches cooperate to serve content requests.
description: Accepted to ACM SIGMETRICS 2023
Understanding solutions of the angular Teukolsky equation in the prolate asymptotic limit
Creators: name: Vickers, Daniel J.
name: Cook, Gregory B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Solutions to the Angular Teukolsky Equation have been used to solve various applied problems in physics and are extremely important to black-hole physics, particularly in computing quasinormal modes and in the extreme-mass-ratio inspiral problem. The eigenfunctions of this equation, known as spin-weighted spheroidal functions, are essentially generalizations of both the spin-weighted spherical harmonics and the scalar spheroidal harmonics. While the latter functions are quite well understood analytically, the spin-weighted spheroidal harmonics are only known analytically in the spherical and oblate asymptotic limits. Attempts to understand them in the prolate asymptotic limit have met limited success. Here, we make use of a high-accuracy numerical solution scheme to extensively explore the space of possible prolate solutions and extract analytic asymptotic expansions for the eigenvalues in the prolate asymptotic limit. Somewhat surprisingly, we find two classes of asymptotic behavior. The behavior of one class, referred to as "normal", is in agreement with the leading-order behavior derived analytically in prior work. The second class of solutions was not previously predicted, but solutions in this class are responsible for unexplained behavior seen in previous numerical prolate solutions during the transition to asymptotic behavior. The behavior of solutions in this "anomalous" class is more complicated than that of solutions in the normal class, with the anomalous class separating into different types based on the behavior of the eigenvalues at different asymptotic orders. We explore the question of when anomalous solutions appear and find necessary, but not sufficient conditions for their existence. It is our hope that this extensive numerical investigation of the prolate solutions will inspire and inform new analytic investigations into these important functions.
description: 34 pages, 30 figures, 16 tables : fixed typos and other minor errors
Topic Interpretation and Wide Scope Indefinites
Creators: name: Ebert, Christian
name: Endriss, Cornelia
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: In recent years it has turned out that only a subclass of indefinites can scope out of syntactic islands. As data from German suggests, this class corresponds to the class of quantifiers that can be interpreted as topics and therefore it seems to be desirable to correlate topicality and specificity (i.e. wide scope). In this paper, we will argue that the specific interpretation of indefinites is the result of the application of an illocutionary operator TopAssert (Topic Assert) to sentences in order to update a common ground. As a consequence of this operation, the topic-marked constituent receives wide scope and relates to the rest of the clause in a way that corresponds to the intuitive content of the notion of aboutness topic. Thus the ability to be a topic and to be interpreted specifically is reduced to the application of one and the same operation to the respective constituents. For this reason, we predict that only those quantifiers that can take wide scope out of syntactic islands can be topics. The observation that wide scope phenomena are restricted to only a subclass of quantifiers (and even indefinites) will be explained by a Topic Condition. This condition tests the lexical semantics of quantifiers and determines the applicability of TopAssert on the basis of a comparison of the aboutness and familiarity definitions we propose.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
A stabilizer framework for Contextual Subspace VQE and the noncontextual projection ansatz
Creators: name: Weaving, Tim
name: Ralli, Alexis
name: Kirby, William M.
name: Tranter, Andrew
name: Love, Peter J.
name: Coveney, Peter V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum chemistry is a promising application for noisy intermediate-scale quantum (NISQ) devices. However, quantum computers have thus far not succeeded in providing solutions to problems of real scientific significance, with algorithmic advances being necessary to fully utilise even the modest NISQ machines available today. We discuss a method of ground state energy estimation predicated on a partitioning the molecular Hamiltonian into two parts: one that is noncontextual and can be solved classically, supplemented by a contextual component that yields quantum corrections obtained via a Variational Quantum Eigensolver (VQE) routine. This approach has been termed Contextual Subspace VQE (CS-VQE), but there are obstacles to overcome before it can be deployed on NISQ devices. The problem we address here is that of the ansatz - a parametrized quantum state over which we optimize during VQE. It is not initially clear how a splitting of the Hamiltonian should be reflected in our CS-VQE ansätze. We propose a 'noncontextual projection' approach that is illuminated by a reformulation of CS-VQE in the stabilizer formalism. This defines an ansatz restriction from the full electronic structure problem to the contextual subspace and facilitates an implementation of CS-VQE that may be deployed on NISQ devices. We validate the noncontextual projection ansatz using a quantum simulator, with results obtained herein for a suite of trial molecules.
description: 37 pages, 3 figures; supporting information available in addition to ancillary data files for reproducibility
Magnetized granular particles running and tumbling on $S^{1}$
Creators: name: Ledesma-Motolinia, M.
name: Carrillo-Estrada, J. L.
name: Escobar, A.
name: Donado, F.
name: Castro-Villarreal, Pavel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It has been shown that a nonvibrated magnetic granular system, when it is feeded by means an altenating magnetic field, behaves with most of the distinctive physical features of active matter systems. In this work we focus our attention on the simplest granular system composed by a single magnetized spherical particle allocated in a quasi one-dimensional circular channel that receives energy from a magnetic field reservoir and transduces it into a running and tumbling motion. The theoretical analysis based on the run and tumble model on a circle of radius R forecasts the existence of a dynamical phase transition between an erratic motion (disordered phase) when the characteristic persistence length of the run and tumble motion, $\ell_{c} < R/2$, to a persistent motion (ordered phase) when $\ell_{c}> R/2$. It is found that the limiting behaviours of these phases correspond to a Brownian motion on the circle and a simple uniform circular motion, respectively. It is qualitatively shown that the lower magnetization of a particle, the larger persistence lenght is. It is so at least within the experimental limit of validity of our experiments. Our results show a very good agreement between theory and experiment.
description: 32 pages, 10 figures
Transverse Peierls Transition
Creators: name: Luo, Kaifa
name: Dai, Xi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the present paper, we have discussed a new type of spontaneous symmetry breaking phases caused by the softening of the transverse acoustic phonon modes through the electron phonon coupling. These new phases include the shear density wave and self-twisting wave, which are caused by the softening of linearly and circularly polarized acoustic phonon modes, respectively. We propose that two of the topological semimetal systems in the quantum limit, where the electrons only occupy the lowest Landau bands under external magnetic field, will be the perfect systems to realize these new phases. Exotic physical effects will be induced in these new phases, including the 3D quantum Hall effect, chiral standing acoustic wave, magneto-acoustic effects and chiral phonon correction to Einstein-de Hass effect.
Hidden symmetries in acoustic wave systems
Creators: name: Röntgen, Malte
name: Morfonios, Christian V.
name: Schmelcher, Peter
name: Pagneux, Vincent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Mirror symmetry of a wave system imposes corresponding even or odd parity on its eigenmodes. For a discrete system, eigenmode parity on a specific subset of sites may also originate from so-called latent symmetry. This symmetry is hidden, but can be revealed in an effective model upon reduction of the original system onto the latently symmetric sites. Here we show how latent symmetries can be leveraged for continuous wave setups in the form of acoustic networks. These are systematically designed to have point-wise amplitude parity between selected waveguide junctions for all low frequency eigenmodes. We further develop a modular principle: latently symmetric networks can be interconnected to feature multiple latently symmetric junction pairs, allowing the design of arbitrarily large latently symmetric networks. By connecting such networks to a mirror symmetric subsystem, we design asymmetric setups featuring eigenmodes with domain-wise parity. Bridging the gap between discrete and continuous models, our work takes a pivotal step towards exploiting hidden geometrical symmetries in realistic wave setups.
description: Accepted version of the manuscript
Monotonicity of the quantum 2-Wasserstein distance
Creators: name: Bistroń, Rafał
name: Eckstein, Michał
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study a quantum analogue of the 2-Wasserstein distance as a measure of proximity on the set $Ω_N$ of density matrices of dimension $N$. We show that such (semi-)distances do not induce Riemannian metrics on the tangent bundle of $Ω_N$ and are typically not unitary invariant. Nevertheless, we prove that for $N=2$ dimensional Hilbert space the quantum 2-Wasserstein distance (unique up to rescaling) is monotonous with respect to any single-qubit quantum operation and the solution of the quantum transport problem is essentially unique. Furthermore, for any $N \geq 3$ and the quantum cost matrix proportional to a projector we demonstrate the monotonicity under arbitrary mixed unitary channels. Finally, we provide numerical evidence which allows us to conjecture that the unitary invariant quantum 2-Wasserstein semi-distance is monotonous with respect to all CPTP maps in any dimension $N$.
description: 30 pages, 5 figures
Satisfying Questions
Creators: name: Dekker, Paul
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: In this paper we first combine and refine the semantics of questions and answers (Groenendijk and Stokhof 1984) and the logic of interrogation (Groenendijk 1999) in order to deal with topical restriction, constituent answerhood and conditional questions in a compo- sitional way. The proposal builds on insights from the structured meanings approaches to questions (von Stechow 1991; Krifka 1991). We next present a global, pragmatic perspec- tive on the use of such questions and answers, which founds and furthers work of (Bu¨ ring 1999; Ginzburg 1996; Roberts 1996) on information structure.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
Magnetic flux in the vacuum of quantum bosonic matter in the cosmic string background
Creators: name: Sitenko, Yurii A.
name: Gorkavenko, Volodymyr M.
name: Tsarenkova, Maria S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The relativistic spin-0 matter field is quantized in the background of a straight cosmic string with nonvanishing transverse size. The most general boundary condition ensuring the impenetrability of the matter field into the interior of the cosmic string is shown to be the Robin condition with a boundary parameter varying arbitrarily from point to point of the boundary. The role of the bound states in the spectrum of solutions to the Fock-Klein-Gordon equation is elucidated. We derive, in the general case, an analytic expression for the total magnetic flux which is induced in the vacuum in the cosmic string background. The further numerical analysis and requirement of physical plausibility are shown to restrict ambiguity which is due to the boundary condition. The dependence of the induced vacuum magnetic flux on the string flux and tension, as well as on the transverse size of the string, is analyzed.
description: 31 pages, 12 figures, minor changes, references added
Aspect, Scope, and Future Conditionals
Creators: name: Copley, Bridget
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: This paper argues that though will and be going to both involve a future modal, their meanings differ aspectually. Be going to includes a progressive-like aspectual operator that takes scope over the future modal. Will, on the other hand, is ambiguous between a reading that is the future modal alone, and a reading that has a generic-like aspectual operator over the modal. The evidence for these logical forms consists primarily of modal effects caused by aspectual operation on the temporal argument of the future modal’s accessibility relation. Similar evidence motivates a proposal that future modals in conditionals can have scope either over or under the antecedent of the conditional. These findings argue against analyses that treat futures as a kind of tense, and suggest possible directions for theories of aspect, modals, and conditionals.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
Questions, Plans, and the Utility of Answers
Creators: name: Benz, Anton
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: The goal of this paper is to derive a measure of utility for questions and answers from a game theoretic model of communication. We apply this measure to account for a number of judgements about the appropriateness of partial and mention–some answers, e.g. that a partial answers to a question can be as appropriate as a strongly exhaustive answer. Under the assumption that interlocutors are Bayesian utility optimisers we see questioning and answering as a two-person sequential decision problem with complete coordination of preferences. Our approach builds up on the work of A. Merin and R. v. Rooy on measures of relevance. We will compare it in detail with their ideas.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
A Semantic Explanation for Intervention Effects
Creators: name: Beck, Sigrid
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: This paper proposes a semantic analysis of intervention effects in wh-constructions. Wh-phrases are assumed to use the same interpretive mechanism as focus. Similar to a focus sensitive operator evaluating the contribution of focus, a question operator evaluates the contribution of a wh-phrase. An intervening focus sensitive operator interferes with this evaluation and renders the structure uninterpretable. Crosslinguistic variation in the appearance of intervention effects arises due to variation in the Logical Form of questions and of focus evaluation.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
Coupled interactions at the ionic graphene/water interface
Creators: name: Robert, Anton
name: Berthoumieux, Hélène
name: Bocquet, Marie-Laure
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We compute ionic free energy adsorption profiles at aqueous graphene interface by developing a self-consistent approach. To do so, we design a microscopic model for water and put the liquid on an equal footing with the graphene described by its electronic band structure. By evaluating progressively the electronic/dipolar coupled electrostatic interactions, we show that the coupling level including mutual graphene/water screening permits to recover remarkably the precision of extensive quantum simulations. We further derive the potential of mean force evolution of several alkali cations.
One-Class Classification: Taxonomy of Study and Review of Techniques
Creators: name: Khan, Shehroz S.
name: Madden, Michael G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: One-class classification (OCC) algorithms aim to build classification models when the negative class is either absent, poorly sampled or not well defined. This unique situation constrains the learning of efficient classifiers by defining class boundary just with the knowledge of positive class. The OCC problem has been considered and applied under many research themes, such as outlier/novelty detection and concept learning. In this paper we present a unified view of the general problem of OCC by presenting a taxonomy of study for OCC problems, which is based on the availability of training data, algorithms used and the application domains applied. We further delve into each of the categories of the proposed taxonomy and present a comprehensive literature review of the OCC algorithms, techniques and methodologies with a focus on their significance, limitations and applications. We conclude our paper by discussing some open research problems in the field of OCC and present our vision for future research.
description: 24 pages + 11 pages of references, 8 figures
Mangrove maps of the Mesoamerican reef region
Creators: name: Canty, Steven
name: Cissell, Jordan
name: Steinberg, Michael
Publisher: name: National Museum of Natural History
Year: 2022
Subjects: Cartography and digital mapping

description: Google Earth Engine code and 10m resolution maps of mangroves produced using sentinel 2 imagery for the Mesoamerican reef ecoregion in 2020.

 The country of Belize was originally mapped and published: Mapping National Mangrove Cover for Belize Using Google Earth Engine and Sentinel-2 imagery, https://www.mdpi.com/2076-3417/11/9/4258.
 The Caribbean coastlines of Mexico, Guatemala and Honduras were subsequently mapped.
The Quest to Understand Supergranulation and Large-Scale Convection in the Sun
Creators: name: Hanasoge, Shravan M.
name: Sreenivasan, Katepalli R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Surface granulation of the Sun is primarily a consequence of thermal transport in the outer 1 % of the radius. Its typical scale of about 1 - 2 Mm is set by the balance between convection, free-streaming radiation, and the strong density stratification in the surface layers. The physics of granulation is well understood, as demonstrated by the close agreement between numerical simulation, theory, and observation. Superimposed on the energetic granular structure comprising high-speed flows, are larger scale long-lived flow systems (~ 300 m/s) called supergranules. Supergranulation has a typical scale of 24 - 36 Mm. It is not clear if supergranulation results from the interaction of granules or is causally linked to deep convection or a consequence of magneto-convection. Other outstanding questions remain: how deep are supergranules? How do they participate in global dynamics of the Sun? Further challenges are posed by our lack of insight into the dynamics of larger scales in the deep convection region. Recent helioseismic constraints have suggested that convective velocity amplitudes on large scales may be overestimated by an order of magnitude or more, implying that Reynolds stresses associated with large-scale convection, thought to play a significant role in the sustenance of differential rotation and meridional circulation, might be two orders of magnitude weaker than theory and computation predict. While basic understanding on the nature of convection on global scales and the maintenance of global circulations is incomplete, progress is imminent, given substantial improvements in computation, theory and helioseismic inferences.
description: 19 pages, 4 figures, Invited Review, Accepted for publication in Solar Physics Topical Edition
Aspectual and Lexical Semantic Properties of Turkish and English Denominal Verbs
Creators: name: Aksan, Yeşim
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: This study attempts to describe lexical and aspectual properties of Turkish and English denominal verbs. Using Clark & Clark’s (1979) semantic classes for denominal verbs, the study limits its data with location, locatum and goal denominal verbs whose nominal bases denote a thing. In considering the analogy between mass/count distinction in the spatial dimension displayed by nouns and telic/atelic distinction in the temporal dimension exhibited by events, present study discusses the effect of inherent semantic features of base nouns in determining the aspectual properties of location, locatum and goal verbs in Turkish and in English. This study also focuses on the variable aspectual nature of locatum verbs with mass noun bases and explains this variability by using the means of scalar semantics.
description: Proceedings of Sinn und Bedeutung, Vol 8 (2004): Proceedings of Sinn und Bedeutung 8
Dynamic Nonreciprocity with a Kerr Nonlinear Resonator
Creators: name: Pan, Rui-Kai
name: Tang, Lei
name: Xia, Keyu
name: Nori, Franco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: On-chip optical nonreciprocal devices are vital components for integrated photonic systems and scalable quantum information processing. Nonlinear optical isolators and circulators have attracted considerable attention because of their fundamental interest and their important advantages in integrated photonic circuits. However, optical nonreciprocal devices based on Kerr or Kerr-like nonlinearity are subject to dynamical reciprocity when the forward and backward signals coexist simultaneously in a nonlinear system. Here, we theoretically propose a method for realizing on-chip nonlinear isolators and circulators with dynamic nonreciprocity. Dynamic nonreciprocity is achieved via the chiral modulation on the resonance frequency due to coexisting self- and cross-Kerr nonlinearities in an optical ring resonator. This work showing dynamic nonreciprocity with a Kerr nonlinear resonator can be an essential step toward integrated optical isolation.
When the Donkey Lost its Fleas: Persistence, Contextual Restriction, and Minimal Situations
Creators: name: Zweig, Eytan
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: This paper revisits the question of whether propositions in situation semantics must be persistent (Kratzer (1989)). It shows that ignoring persistence causes empirical problems to theories which use quantification over minimal situations as a solution for donkey anaphora (Elbourne (2005)), while at the same time modifying these theories to incorporate persistence makes them incompatible with the use of situations for contextual restriction (Kratzer (2004)).
description: Proceedings of Sinn und Bedeutung, Vol 10 No 2 (2006): Proceedings of Sinn und Bedeutung 10
MHD modeling of coronal loops: the transition region throat
Creators: name: Guarrasi, M.
name: Reale, F.
name: Orlando, S.
name: Mignone, A.
name: Klimchuk, J. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The expansion of coronal loops in the transition region may considerably influence the diagnostics of the plasma emission measure. The cross sectional area of the loops is expected to depend on the temperature and pressure, and might be sensitive to the heating rate. The approach here is to study the area response to slow changes in the coronal heating rate, and check the current interpretation in terms of steady heating models. We study the area response with a time-dependent 2D MHD loop model, including the description of the expanding magnetic field, coronal heating and losses by thermal conduction and radiation from optically thin plasma. We run a simulation for a loop 50 Mm long and quasi-statically heated to about 4 MK. We find that the area can change substantially with the quasi-steady heating rate, e.g. by ~40% at 0.5 MK as the loop temperature varies between 1 and 4 MK, and, therefore, affects the interpretation of DEM(T) curves.
description: 9 pages, 5 figures, accepted for publication
Efficient charged particle propagation methods
Creators: name: Reichherzer, P.
name: Tjus, J. Becker
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In astrophysics, the search for sources of the highest-energy cosmic rays continues. For further progress, not only ever better observatories but also ever more realistic numerical simulations are needed. We compare different approaches for numerical test simulations of UHECRs in the IGMF and show that all methods provide correct statistical propagation characteristics of the particles in means of their diffusive behaviour. Through convergence tests, we show that the necessary requirements for the methods differ and ultimately reveal significant differences in the required simulation time.
description: Submitted to the Proceedings of the 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2021)
Adverbial Quantification and Focus in Hausa
Creators: name: Zimmermann, Malte
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: The paper investigates the interaction of focus and adverbial quantification in Hausa, a Chadic tone language spoken in West Africa. The discussion focuses on similarities and differences between intonation and tone languages concerning the way in which adverbial quantifiers (AQs) and focus particles (FPs) associate with focus constituents. It is shown that the association of AQs with focused elements does not differ fundamentally in intonation and tone languages such as Hausa, despite the fact that focus marking in Hausa works quite differently. This may hint at the existence of a universal mechanism behind the interpretation of adverbial quantifiers across languages. From a theoretical perspective, the Hausa data can be taken as evidence in favour of pragmatic approaches to the focus-sensitivity of AQs, such as e.g. Beaver & Clark (2003).
description: Proceedings of Sinn und Bedeutung, Vol 10 No 2 (2006): Proceedings of Sinn und Bedeutung 10
How Semantics Dictates the Syntactic Vocabulary
Creators: name: Zeijlstra, Hedde
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: In this paper I argue that the set of formal features that can head a functional projection is not given by UG but derived through L1 acquisition. I formulate a hypothesis that says that initially every functional category F is realised as a semantic feature [F]; whenever there is an overt doubling effect in the L1 input with respect to F, this semantic feature [F] is reanalysed as a formal feature [i/uF]. In the first part of the paper I provide a theoretical motivation for this hypothesis, in the second part I test this proposal for a case-study, namely the cross-linguistic distribution of Negative Concord (NC). I demonstrate that in NC languages negation has been reanalysed as a formal feature [i/uNEG], whereas in Double Negation languages this feature remains a semantic feature [NEG] (always interpreted as a negative operator), thus paving the way for an explanation of NC in terms of syntactic agreement. In the third part I discuss that the application of the hypothesis to the phenomenon of negation yields two predictions that can be tested empirically. First I demonstrate that negative markers X° can be available only in NC languages; second, independent change of the syntactic status of negative markers, can invoke a change with respect to the exhibition of NC in a particular language. Both predictions are proven to be correct. I finally argue what the consequences of the proposal presented in this paper are for both the syntactic structure of the clause and second for the way parameters are associated to lexical items.
description: Proceedings of Sinn und Bedeutung, Vol 10 No 2 (2006): Proceedings of Sinn und Bedeutung 10
Towards Reliable Neural Generative Modeling of Detectors
Creators: name: Anderlini, Lucio
name: Barbetti, Matteo
name: Derkach, Denis
name: Kazeev, Nikita
name: Maevskiy, Artem
name: Mokhnenko, Sergei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The increasing luminosities of future data taking at Large Hadron Collider and next generation collider experiments require an unprecedented amount of simulated events to be produced. Such large scale productions demand a significant amount of valuable computing resources. This brings a demand to use new approaches to event generation and simulation of detector responses. In this paper, we discuss the application of generative adversarial networks (GANs) to the simulation of the LHCb experiment events. We emphasize main pitfalls in the application of GANs and study the systematic effects in detail. The presented results are based on the Geant4 simulation of the LHCb Cherenkov detector.
description: 6 pages, 4 figures
Four-loop QCD cusp anomalous dimension at small angle
Creators: name: Grozin, Andrey G.
name: Lee, Roman N.
name: Pikelner, Andrey F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the small angle expansion of the four-loop QCD cusp anomalous dimension. As a byproduct of our calculation, we also obtain the four-loop anomalous dimension of the heavy-quark field in HQET. The validity of the calculational setup is cross-checked by the independent calculation of the four-loop QCD beta-function from heavy-quark-gluon vertex renormalization in HQET. We check the obtained results for the cusp anomalous dimension and heavy-quark field anomalous dimension against available analytical and numerical results. Finally, we find that the maximal transcendentality contribution to the QCD Bremsstrahlung function coincides, up to a factor 3/2, with the Bremsstrahlung function in N = 4 supersymmetric Yang-Mills theory, at least, through 4 loops.
description: ancillary files with results
Don't Negate Imperatives! Imperatives and the Semantics of Negative Markers
Creators: name: Zeijlstra, Hedde
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2019

description: Languages cross-linguistically differ with respect to whether they accept or ban True Negative Imperatives (TNIs). In this paper I show that this ban follows from three generally accepted assumptions: (i) the fact that the operator that encodes the illocutionary force of an imperative universally takes scope from C°; (ii) the fact that this operator may not be operated on by a negative operator and (iii) the Head Movement Constraint (an instance of Relativized Minimality). In my paper I argue that languages differ too with respect to both the syntactic status (head/phrasal) and the semantic value (negative/non-negative) of their negative markers. Given these difference across languages and the analysis of TNIs based on the three above mentioned assumptions, two typological generalisations can be predicted: (i) every language with an overt negative marker X° that is semantically negative bans TNIs; and (ii) every language that bans TNIs exhibits an overt negative marker X°. I demonstrate in my paper that both typological predictions are born out.
description: Proceedings of Sinn und Bedeutung, Vol 10 No 2 (2006): Proceedings of Sinn und Bedeutung 10
Accelerating spherical harmonic transforms for a large number of sky maps
Creators: name: Tian, Chi
name: Li, Siyu
name: Liu, Hao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The spherical harmonic transform is a powerful tool in the analysis of spherical data sets, such as the cosmic microwave background data. In this work, we present a new scheme for the spherical harmonic transforms that supports both CPU and GPU computations, which is specially efficient on a large number of sky maps. By comparing our implementation with the standard Libsharp-HEALPix program, we demonstrate 2-10 times speedup for the CPU implementation, and up to 30 times speedup when a state-of-the-art GPU is employed. This new scheme's software package is available via an open source GitHub repository.
description: Open access. The software package is available at https://github.com/liuhao-cn/fastSHT
Deep learning techniques for energy clustering in the CMS ECAL
Creators: name: Valsecchi, Davide
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Machine Learning (cs.LG)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The reconstruction of electrons and photons in CMS depends on topological clustering of the energy deposited by an incident particle in different crystals of the electromagnetic calorimeter (ECAL). These clusters are formed by aggregating neighbouring crystals according to the expected topology of an electromagnetic shower in the ECAL. The presence of upstream material (beampipe, tracker and support structures) causes electrons and photons to start showering before reaching the calorimeter. This effect, combined with the 3.8T CMS magnetic field, leads to energy being spread in several clusters around the primary one. It is essential to recover the energy contained in these satellite clusters in order to achieve the best possible energy resolution for physics analyses. Historically satellite clusters have been associated to the primary cluster using a purely topological algorithm which does not attempt to remove spurious energy deposits from additional pileup interactions (PU). The performance of this algorithm is expected to degrade during LHC Run 3 (2022+) because of the larger average PU levels and the increasing levels of noise due to the ageing of the ECAL detector. New methods are being investigated that exploit state-of-the-art deep learning architectures like Graph Neural Networks (GNN) and self-attention algorithms. These more sophisticated models improve the energy collection and are more resilient to PU and noise, helping to preserve the electron and photon energy resolution achieved during LHC Runs 1 and 2. This work will cover the challenges of training the models as well the opportunity that this new approach offers to unify the ECAL energy measurement with the particle identification steps used in the global CMS photon and electron reconstruction.
description: Presented at the ACAT 2021: 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Daejeon, Kr, 29 Nov - 3 Dec 2021