cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Learning to Model and Calibrate Optics via a Differentiable Wave Optics Simulator
Creators: name: Page, Josue
name: Favaro, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We present a novel learning-based method to build a differentiable computational model of a real fluorescence microscope. Our model can be used to calibrate a real optical setup directly from data samples and to engineer point spread functions by specifying the desired input-output data. This approach is poised to drastically improve the design of microscopes, because the parameters of current models of optical setups cannot be easily fit to real data. Inspired by the recent progress in deep learning, our solution is to build a differentiable wave optics simulator as a composition of trainable modules, each computing light wave-front (WF) propagation due to a specific optical element. We call our differentiable modules WaveBlocks and show reconstruction results in the case of lenses, wave propagation in air, camera sensors and diffractive elements (e.g., phase-masks).
description: 6 pages, 3 figures, for source code see https://github.com/pvjosue/WaveBlocks, to be published in IEEE 2020 International Conference on Image Processing (ICIP 2020)
Synaptic Upscaling Amplifies Chaotic Dynamics in Recurrent Networks of Rate Neurons
Creators: name: Razi, Farhad
name: Zeldenrust, Fleur
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Revisiting Toom's proof of Bulgarian Solitaire
Creators: name: Hart, Therese A.
name: Khan, Gabriel
name: Khan, Mizan R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 05A17, 11P81

description: In this article we give an exposition of Toom's proof of Bulgarian Solitaire that appeared in \emph{Kvant}. We provide more details. We also show how an application of the Chinese Remainder Theorem allows us to generalize the proof.
description: This paper was published in Ann. Sci. Math. Qu\'ebec. However, the journal was transferred to Springer and renamed in 2013. Recently as of 2023, the archives of the old journal have become inaccessible. As such, we have uploaded the published version as a more permanent reference
Computation of minimal covariants bases for 2D coupled constitutive laws
Creators: name: Desmorat, Boris
name: Olive, Marc
name: Auffray, Nicolas
name: Desmorat, Rodrigue
name: Kolev, Boris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Classical Physics (physics.class-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We produce minimal integrity bases for both isotropic and hemitropic invariant algebras (and more generally covariant algebras) of most common bidimensional constitutive tensors and -- possibly coupled -- laws, including piezoelectricity law, photoelasticity, Eshelby and elasticity tensors, complex viscoelasticity tensor, Hill elasto-plasticity, and (totally symmetric) fabric tensors up to twelfth-order. The concept of covariant, which extends that of invariant is explained and motivated. It appears to be much more useful for applications. All the tools required to obtain these results are explained in detail and a cleaning algorithm is formulated to achieve minimality in the isotropic case. The invariants and covariants are first expressed in complex forms and then in tensorial forms, thanks to explicit translation formulas which are provided. The proposed approach also applies to any $n$-uplet of bidimensional constitutive tensors.
State-Dependent Approach to Entropic Measurement-Disturbance Relations
Creators: name: Coles, Patrick J.
name: Furrer, Fabian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Heisenberg's intuition was that there should be a tradeoff between measuring a particle's position with greater precision and disturbing its momentum. Recent formulations of this idea have focused on the question of how well two complementary observables can be jointly measured. Here, we provide an alternative approach based on how enhancing the predictability of one observable necessarily disturbs a complementary one. Our measurement-disturbance relation refers to a clear operational scenario and is expressed by entropic quantities with clear statistical meaning. We show that our relation is perfectly tight for all measurement strengths in an existing experimental setup involving qubit measurements.
description: 9 pages, 2 figures. v4: published version
title: Nachruf auf Karl List
Creators: name: Schmidt-Thomé, Peter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 1 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Modulation of Spontaneous Activity Patterns in Developing Sensory Cortices via Inhibition
Creators: name: Wang, Feiyu
name: Dwulet, JaeAnn M.
name: Gjorgjieva, Julijana
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
The vmf90 program for the numerical resolution of the Vlasov equation for mean-field systems
Creators: name: de Buyl, Pierre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The numerical resolution of the Vlasov equation provides complementary information with respect to analytical studies and forms an important research tool in domains such as plasma physics. The study of mean-field models for systems with long-range interactions is another field in which the Vlasov equation plays an important role. We present the vmf90 program that performs numerical simulations of the Vlasov equation for this class of mean-field models with the semi-Lagrangian method.
description: 7 pages, 2 figures. the manuscript is related to the program vmf90 https://github.com/pdebuyl/vmf90. Updated to accepted version
Bias-corrected methods for estimating the receiver operating characteristic surface of continuous diagnostic tests
Creators: name: Duc, Khanh To
name: Chiogna, Monica
name: Adimari, Gianfranco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62C99, 62P10

description: Verification bias is a well-known problem that may occur in the evaluation of predictive ability of diagnostic tests. When a binary disease status is considered, various solutions can be found in the literature to correct inference based on usual measures of test accuracy, such as the receiver operating characteristic (ROC) curve or the area underneath. Evaluation of the predictive ability of continuous diagnostic tests in the presence of verification bias for a three-class disease status is here discussed. In particular, several verification bias-corrected estimators of the ROC surface and of the volume underneath are proposed. Consistency and asymptotic normality of the proposed estimators are established and their finite sample behavior is investigated by means of Monte Carlo simulation studies. Two illustrations are also given.
Global Solution of the Electromagnetic Field-Particle System of Equations
Creators: name: Falconi, Marco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we discuss global existence of the solution of the Maxwell and Newton system of equations, describing the interaction of a rigid charge distribution with the electromagnetic field it generates. A unique solution is proved to exist (for regular charge distributions) on suitable homogeneous and non-homogeneous Sobolev spaces, for the electromagnetic field, and on coordinate and velocity space for the charge; provided initial data belong to the subspace that satisfies the divergence part of Maxwell's equations.
description: 17 pages
title: Der römische Vicus bei Güglingen. Entdeckungen im Archiv ergänzen die aktuellen Ausgrabungen
Creators: name: Kortüm, Klaus
name: Neth, Andrea
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 2 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Mixing Patterns from the Groups Sigma (n phi)
Creators: name: Hagedorn, Claudia
name: Meroni, Aurora
name: Vitale, Lorenzo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We survey the mixing patterns which can be derived from the discrete groups Sigma (36 x 3), Sigma (72 x 3), Sigma (216 x 3) and Sigma (360 x 3), if these are broken to abelian subgroups Ge and Gnu in the charged lepton and neutrino sector, respectively. Since only Sigma (360 x 3) possesses Klein subgroups, only this group allows neutrinos to be Majorana particles. We find a few patterns that can agree well with the experimental data on lepton mixing in scenarios with small corrections and that predict the reactor mixing angle theta_{13} to be 0.1 <= theta_{13} <= 0.2. All these patterns lead to a trivial Dirac phase. Patterns which instead reveal CP violation tend to accommodate the data not well. We also comment on the outer automorphisms of the discussed groups, since they can be useful for relating inequivalent representations of these groups.
description: 1+28 pages, 6 tables, no figures; v2: matches version published in J. Phys. A: Math. Theor
Accurate and Clear Precipitation Nowcasting with Consecutive Attention and Rain-map Discrimination
Creators: name: Ashesh
name: Chen, Buo-Fu
name: Huang, Treng-Shi
name: Chen, Boyo
name: Chang, Chia-Tung
name: Lin, Hsuan-Tien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Precipitation nowcasting is an important task for weather forecasting. Many recent works aim to predict the high rainfall events more accurately with the help of deep learning techniques, but such events are relatively rare. The rarity is often addressed by formulations that re-weight the rare events. Somehow such a formulation carries a side effect of making "blurry" predictions in low rainfall regions and cannot convince meteorologists to trust its practical usability. We fix the trust issue by introducing a discriminator that encourages the prediction model to generate realistic rain-maps without sacrificing predictive accuracy. Furthermore, we extend the nowcasting time frame from one hour to three hours to further address the needs from meteorologists. The extension is based on consecutive attentions across different hours. We propose a new deep learning model for precipitation nowcasting that includes both the discrimination and attention techniques. The model is examined on a newly-built benchmark dataset that contains both radar data and actual rain data. The benchmark, which will be publicly released, not only establishes the superiority of the proposed model, but also is expected to encourage future research on precipitation nowcasting.
Modulation of galactic cosmic rays during the unusual solar minimum between cycles 23 and 24
Creators: name: Zhao, L. -L.
name: Qin, G.
name: Zhang, M.
name: Heber, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: During the recent solar minimum between cycles 23 and 24 (solar minimum $P_{23/24}$) the intensity of Galactic Cosmic Rays (GCRs) measured at the Earth was the highest ever recorded since space age. It is the purpose of this paper to resolve the most plausible mechanism for this unusually high intensity. A GCR transport model in three-dimensional heliosphere based on a simulation of Markov stochastic process is used to find the relation of cosmic ray modulation to various transport parameters, including solar wind (SW) speed, distance of heliospheric boundary, magnitude of interplanetary magnetic field (IMF) at the Earth, tilt angle of heliospheric current sheet (HCS), values of parallel and perpendicular diffusion coefficients. We calculate GCR proton energy spectra at the Earth for the last three solar minima $P_{21/22}$, $P_{22/23}$, and $P_{23/24}$, with the transport parameters obtained from observations. Besides weak IMF magnitude and slow SW speed, we find that a possible low magnetic turbulence, which increases the parallel diffusion and reduces the perpendicular diffusion in the polar direction, might be an additional possible mechanism for the high GCR intensity in the solar minimum $P_{23/24}$.
description: Accepted for publication in JGR space physics
Homotopy type of the space of finite propagation unitary operators on $\mathbb{Z}$
Creators: name: Kato, Tsuyoshi
name: Kishimoto, Daisuke
name: Tsutaya, Mitsunobu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Topology (math.AT)
subject: Mathematical Physics (math-ph)
subject: K-Theory and Homology (math.KT)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 55Q52 (Primary), 81R10, 46L80 (Secondary)

description: The index theory for the space of finite propagation unitary operators was developed by Gross, Nesme, Vogts and Werner from the viewpoint of quantum walks in mathematical physics. In particular, they proved that $π_0$ of the space is determined by the index. However, nothing is known about the higher homotopy groups. In this article, we describe the homotopy type of the space of finite propagation unitary operators on the Hilbert space of square summable $\mathbb{C}$-valued $\mathbb{Z}$-sequences, so we can determine its homotopy groups. We also study the space of (end-)periodic finite propagation unitary operators.
description: 27 pages, 2 figures
Are Maxwell's equations Lorentz-covariant?
Creators: name: Redzic, D V
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The statement that Maxwell's electrodynamics in vacuum is already covariant under Lorentz transformations is commonplace in the literature. We analyse the actual meaning of that statement and demonstrate that Maxwell's equations are perfectly fit to be Lorentz-covariant; they become Lorentz-covariant if we construct to be so, by postulating certain transformation properties of field functions. In Aristotelian terms, the covariance is a plain potentiality, but not necessarily entelechy.
description: This is an enlarged version of the paper D V Red\v{z}i\'c, Are Maxwell's equations Lorentz-covariant? Eur. J. Phys. 38 015602 (2017), which contains some new material, 11 pages
Is the cortical dynamics ergodic? A numerical study in partially-symmetric networks of spiking neurons
Creators: name: Tixidre, Ferdinand
name: Mongillo, Gianluigi
name: Torcini, Alessandro
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
On the tube-occupancy of sets in $\mathbb{R}^d$
Creators: name: Orponen, Tuomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Call a pair $(s,t) \in [0,d] \times [0,d]$ admissible, if there exists a compact set $K \subset \mathbb{R}^{d}$ and a constant $C > 0$ such that $0 < \mathcal{H}^{s}(K) < \infty$, and $$\mathcal{H}_{s}(K \cap T) \leq Cw(T)^{t}$$ for all tubes $T \subset \mathbb{R}^{d}$ of width $w(T)$. The purpose of this paper is to show that all pairs $(s,s)$ with $s < 1$ are admissible. Combined with previous results, this settles a question of A. Carbery.
description: 15 pages. v2: referee comments incorporated, to appear in IMRN
Autonomous Recharging and Flight Mission Planning for Battery-operated Autonomous Drones
Creators: name: Alyassi, Rashid
name: Khonji, Majid
name: Karapetyan, Areg
name: Chau, Sid Chi-Kin
name: Elbassioni, Khaled
name: Tseng, Chien-Ming
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Unmanned aerial vehicles (UAVs), commonly known as drones, are being increasingly deployed throughout the globe as a means to streamline monitoring, inspection, mapping, and logistic routines. When dispatched on autonomous missions, drones require an intelligent decision-making system for trajectory planning and tour optimization. Given the limited capacity of their onboard batteries, a key design challenge is to ensure the underlying algorithms can efficiently optimize the mission objectives along with recharging operations during long-haul flights. With this in view, the present work undertakes a comprehensive study on automated tour management systems for an energy-constrained drone: (1) We construct a machine learning model that estimates the energy expenditure of typical multi-rotor drones while accounting for real-world aspects and extrinsic meteorological factors. (2) Leveraging this model, the joint program of flight mission planning and recharging optimization is formulated as a multi-criteria Asymmetric Traveling Salesman Problem (ATSP), wherein a drone seeks for the time-optimal energy-feasible tour that visits all the target sites and refuels whenever necessary. (3) We devise an efficient approximation algorithm with provable worst-case performance guarantees and implement it in a drone management system, which supports real-time flight path tracking and re-computation in dynamic environments. (4) The effectiveness and practicality of the proposed approach are validated through extensive numerical simulations as well as real-world experiments.
A transprecision floating-point cluster for efficient near-sensor data analytics
Creators: name: Montagna, Fabio
name: Mach, Stefan
name: Benatti, Simone
name: Garofalo, Angelo
name: Ottavi, Gianmarco
name: Benini, Luca
name: Rossi, Davide
name: Tagliavini, Giuseppe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Recent applications in the domain of near-sensor computing require the adoption of floating-point arithmetic to reconcile high precision results with a wide dynamic range. In this paper, we propose a multi-core computing cluster that leverages the fined-grained tunable principles of transprecision computing to provide support to near-sensor applications at a minimum power budget. Our design - based on the open-source RISC-V architecture - combines parallelization and sub-word vectorization with near-threshold operation, leading to a highly scalable and versatile system. We perform an exhaustive exploration of the design space of the transprecision cluster on a cycle-accurate FPGA emulator, with the aim to identify the most efficient configurations in terms of performance, energy efficiency, and area efficiency. We also provide a full-fledged software stack support, including a parallel runtime and a compilation toolchain, to enable the development of end-to-end applications. We perform an experimental assessment of our design on a set of benchmarks representative of the near-sensor processing domain, complementing the timing results with a post place-&-route analysis of the power consumption. Finally, a comparison with the state-of-the-art shows that our solution outperforms the competitors in energy efficiency, reaching a peak of 97 Gflop/s/W on single-precision scalars and 162 Gflop/s/W on half-precision vectors.
title: Wunsch oder Wirklichkeit? Ein barocker Klostergarten an der Birnau
Creators: name: Caesar, Volker
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 3 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Erst das Schloss, dann sein Garten. Der Eichelhofgarten bei Wertheim wird wieder hergestellt
Creators: name: Breuer, Judith
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 3 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Rigid continuation paths II. Structured polynomial systems
Creators: name: Bürgisser, Peter
name: Cucker, Felipe
name: Lairez, Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Complexity (cs.CC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 68Q25, Secondary 65H10, 65H20, 65Y20

description: This work studies the average complexity of solving structured polynomial systems that are characterized by a low evaluation cost, as opposed to the dense random model previously used. Firstly, we design a continuation algorithm that computes, with high probability, an approximate zero of a polynomial system given only as black-box evaluation program. Secondly, we introduce a universal model of random polynomial systems with prescribed evaluation complexity L. Combining both, we show that we can compute an approximate zero of a random structured polynomial system with n equations of degree at most δ in n variables with only poly(n, δ) L operations with high probability. This exceeds the expectations implicit in Smale's 17th problem.
BV solutions for a hydrodynamic model of flocking--type with all-to-all interaction kernel
Creators: name: Amadori, Debora
name: Christoforou, Cleopatra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 35L65, 35B40, Secondary: 35D30, 35Q70, 35L50

description: We consider a hydrodynamic model of flocking-type with all-to-all interaction kernel in one-space dimension and establish global existence of entropy weak solutions with concentration to the Cauchy problem for any BV initial data that has finite total mass confined in a bounded interval and initial density uniformly positive therein. In addition, under a suitable condition on the initial data, we show that entropy weak solutions with concentration admit time-asymptotic flocking.
description: 59 pages, 1 figure
Two-component Yang-Baxter maps and star-triangle relations
Creators: name: Kels, Andrew P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is shown how Yang-Baxter maps may be directly obtained from classical counterparts of the star-triangle relations and quantum Yang-Baxter equations. This is based on reinterpreting the latter equation and its solutions which are given in terms of special functions, as a set-theoretical form of the Yang-Baxter equation whose solutions are given by quadrirational Yang-Baxter maps. The Yang-Baxter maps obtained through this approach are found to satisfy two different types of Yang-Baxter equations, one that is the usual equation involving a single map, and another equation that involves a pair of maps, which is a case of what is also known as an entwining Yang-Baxter equation. Apart from the elliptic case, each of these Yang-Baxter maps are quadrirational, but only maps that solve the former type of Yang-Baxter equation are reversible. The Yang-Baxter maps are expressed in terms of two-component variables, and two-component parameters, and have a natural QRT-like composition of separate maps for each component. Through this approach, sixteen different Yang-Baxter maps are derived from known solutions of the classical star-triangle relations.
description: 48 pages, 9 figures, v7: rewrote text, results unchanged
Convex envelopes for ray-concave functions
Creators: name: Barrera, Javiera
name: Moreno, Eduardo
name: Muñoz, Gonzalo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C26, 90C25

description: Convexification based on convex envelopes is ubiquitous in the non-linear optimization literature. Thanks to considerable efforts of the optimization community for decades, we are able to compute the convex envelopes of a considerable number of functions that appear in practice, and thus obtain tight and tractable approximations to challenging problems. We contribute to this line of work by considering a family of functions that, to the best of our knowledge, has not been considered before in the literature. We call this family ray-concave functions. We show sufficient conditions that allow us to easily compute closed-form expressions for the convex envelope of ray-concave functions over arbitrary polytopes. With these tools, we are able to provide new perspectives to previously known convex envelopes and derive a previously unknown convex envelope for a function that arises in probability contexts.
title: Die Gärten der Alamannen. Bodenfunde zeigen ein neues Bild vom Pflanzenanbau nördlich der Alpen
Creators: name: Rösch, Manfred
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 3 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Investigation of commuting Hamiltonian in quantum Markov network
Creators: name: Jouneghani, Farzad Ghafari
name: Babazadeh, Mohammad
name: Bayramzadeh, Rogayeh
name: Movla, Hossein
Publisher: name: arXiv
Year: 2013
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Graphical Models have various applications in science and engineering which include physics, bioinformatics, telecommunication and etc. Usage of graphical models needs complex computations in order to evaluation of marginal functions,so there are some powerful methods including mean field approximation, belief propagation algorithm and etc. Quantum graphical models have been recently developed in context of quantum information and computation, and quantum statistical physics, which is possible by generalization of classical probability theory to quantum theory. The main goal of this paper is preparing a primary generalization of Markov network, as a type of graphical models, to quantum case and applying in quantum statistical physics.We have investigated the Markov network and the role of commuting Hamiltonian terms in conditional independence with simple examples of quantum statistical physics.
description: 11 pages, 8 figures
Quantum Proofs of Proximity
Creators: name: Dall'Agnol, Marcel
name: Gur, Tom
name: Moulik, Subhayan Roy
name: Thaler, Justin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We initiate the systematic study of QMA algorithms in the setting of property testing, to which we refer as QMA proofs of proximity (QMAPs). These are quantum query algorithms that receive explicit access to a sublinear-size untrusted proof and are required to accept inputs having a property $Π$ and reject inputs that are $\varepsilon$-far from $Π$, while only probing a minuscule portion of their input. We investigate the complexity landscape of this model, showing that QMAPs can be exponentially stronger than both classical proofs of proximity and quantum testers. To this end, we extend the methodology of Blais, Brody, and Matulef (Computational Complexity, 2012) to prove quantum property testing lower bounds via reductions from communication complexity. This also resolves a question raised in 2013 by Montanaro and de Wolf (cf. Theory of Computing, 2016). Our algorithmic results include a purpose an algorithmic framework that enables quantum speedups for testing an expressive class of properties, namely, those that are succinctly decomposable. A consequence of this framework is a QMA algorithm to verify the Parity of an $n$-bit string with $O(n^{2/3})$ queries and proof length. We also propose a QMA algorithm for testing graph bipartitneness, a property that lies outside of this family, for which there is a quantum speedup.
description: In TQC 2021
The Picard group of the universal moduli stack of principal bundles on pointed smooth curves II
Creators: name: Fringuelli, Roberto
name: Viviani, Filippo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H60, 14D20, 14C22, 20G07, 14H10

description: In this paper, which is a sequel of arXiv:2002.07494, we investigate, for any reductive group $G$ over an algebraically closed field $k$, the Picard group of the universal moduli stack $\mathrm{Bun}_{G,g,n}$ of $G$-bundles over $n$-pointed smooth projective curves of genus $g$. In particular: we give new functorial presentations of the Picard group of $\mathrm{Bun}_{G,g,n}$; we study the restriction homomorphism onto the Picard group of the moduli stack of principal $G$-bundles over a fixed smooth curve; we determine the Picard group of the rigidification of $\mathrm{Bun}_{G,g,n}$ by the center of $G$ as well as the image of the obstruction homomorphism of the associated gerbe. As a consequence, we compute the divisor class group of the moduli space of semistable $G$-bundles over $n$-pointed smooth projective curves of genus $g$.
description: 56 pages. Final version, to appear on Ann. Sc. Norm. Super. Pisa
Critical organisation for complex temporal tasks in neural networks
Creators: name: Ramesan, Gayathri
name: Nandan, Akhilesh
name: Koch, Daniel
name: Koseska, Aneta
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Cascaded Models With Cyclic Feedback For Direct Speech Translation
Creators: name: Lam, Tsz Kin
name: Schamoni, Shigehiko
name: Riezler, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Direct speech translation describes a scenario where only speech inputs and corresponding translations are available. Such data are notoriously limited. We present a technique that allows cascades of automatic speech recognition (ASR) and machine translation (MT) to exploit in-domain direct speech translation data in addition to out-of-domain MT and ASR data. After pre-training MT and ASR, we use a feedback cycle where the downstream performance of the MT system is used as a signal to improve the ASR system by self-training, and the MT component is fine-tuned on multiple ASR outputs, making it more tolerant towards spelling variations. A comparison to end-to-end speech translation using components of identical architecture and the same data shows gains of up to 3.8 BLEU points on LibriVoxDeEn and up to 5.1 BLEU points on CoVoST for German-to-English speech translation.
description: Accepted at ICASSP 2021
A note on decreasing rearrangement and mean oscillation on measure spaces
Creators: name: Burchard, Almut
name: Dafni, Galia
name: Gibara, Ryan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 30L15, 42B35, 46E30

description: We derive bounds on the mean oscillation of the decreasing rearrangement $f^*$ on $\mathbb{R}_+$ in terms of the mean oscillation of $f$ on a suitable measure space $X$. In the special case of a doubling metric measure space, the bound depends only on the doubling constant.
Constraints on the explosion mechanism and progenitors of type Ia supernovae
Creators: name: Dessart, Luc
name: Blondin, Stephane
name: Hillier, D. John
name: Khokhlov, Alexei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Observations of SN 2011fe at early times reveal an evolution analogous to a fireball model of constant color. In contrast, our unmixed delayed detonations of Chandrasekhar-mass white dwarfs (DDC series) exhibit a faster brightening concomitant with a shift in color to the blue. In this paper, we study the origin of these discrepancies. We find that strong chemical mixing largely resolves the photometric mismatch at early times, but it leads to an enhanced line broadening that contrasts, for example, with the markedly narrow SiII6355A line of SN 2011fe. We also explore an alternative configuration with pulsational-delayed detonations (PDDEL model series). Because of the pulsation, PDDEL models retain more unburnt carbon, have little mass at high velocity, and have a much hotter outer ejecta after the explosion. The pulsation does not influence the inner ejecta, so PDDEL and DDC models exhibit similar radiative properties beyond maximum. However, at early times, PDDEL models show bluer optical colors and a higher luminosity, even for weak mixing. Their early-time radiation is derived primarily from the initial shock-deposited energy in the outer ejecta rather than radioactive decay heating. Furthermore, PDDEL models show short-lived CII lines, reminiscent of SN 2013dy. They typically exhibit lines that are weaker, narrower, and of near-constant width, reminiscent of SN 2011fe. In addition to multi-dimensional effects, varying configurations for such ``pulsations" offer a source of spectral diversity amongst SNe Ia. PDDEL and DDC models also provide one explanation for low- and high-velocity gradient SNe Ia.
description: Accepted to MNRAS
title: Tag des Offenen Denkmals. 2006 Eröffnungsfeier in Sigmaringen am 9. September 2006
Creators: name: Bofinger, Jörg
name: Obmann, Jürgen
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 4 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Multimode photon blockade
Creators: name: Chakram, Srivatsan
name: He, Kevin
name: Dixit, Akash V.
name: Oriani, Andrew E.
name: Naik, Ravi K.
name: Leung, Nelson
name: Kwon, Hyeokshin
name: Ma, Wen-Long
name: Jiang, Liang
name: Schuster, David I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Interactions are essential for the creation of correlated quantum many-body states. While two-body interactions underlie most natural phenomena, three- and four-body interactions are important for the physics of nuclei [1], exotic few-body states in ultracold quantum gases [2], the fractional quantum Hall effect [3], quantum error correction [4], and holography [5, 6]. Recently, a number of artificial quantum systems have emerged as simulators for many-body physics, featuring the ability to engineer strong interactions. However, the interactions in these systems have largely been limited to the two-body paradigm, and require building up multi-body interactions by combining two-body forces. Here, we demonstrate a pure N-body interaction between microwave photons stored in an arbitrary number of electromagnetic modes of a multimode cavity. The system is dressed such that there is collectively no interaction until a target total photon number is reached across multiple distinct modes, at which point they interact strongly. The microwave cavity features 9 modes with photon lifetimes of $\sim 2$ ms coupled to a superconducting transmon circuit, forming a multimode circuit QED system with single photon cooperativities of $\sim10^9$. We generate multimode interactions by using cavity photon number resolved drives on the transmon circuit to blockade any multiphoton state with a chosen total photon number distributed across the target modes. We harness the interaction for state preparation, preparing Fock states of increasing photon number via quantum optimal control pulses acting only on the cavity modes. We demonstrate multimode interactions by generating entanglement purely with uniform cavity drives and multimode photon blockade, and characterize the resulting two- and three-mode W states using a new protocol for multimode Wigner tomography.
description: 5 pages of main text with 5 figures. 11 pages of supplementary information with 10 figures
The role of gap junctions and clustered connectivity in emergent synchronisation patterns of spiking inhibitory neuronal networks
Creators: name: Todd, Helene
name: Gutkin, Boris
name: Cayco-Gajic, Alex
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
title: Risse im Mauerwerk und im Gewölbe der Tübinger Stiftskirche. Verformungen millimetergenau beobachtet und die Ergebnisse der Verformungsanalyse
Creators: name: Eckstein, Günter
name: Gräber, Friedrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 35, Nr. 4 (2006), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Numerical methods for backward stochastic differential equations: A survey
Creators: name: Chessari, Jared
name: Kawai, Reiichiro
name: Shinozaki, Yuji
name: Yamada, Toshihiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 65C30, 65C05, 93E24, 49L20, 60H07

description: Backward Stochastic Differential Equations (BSDEs) have been widely employed in various areas of social and natural sciences, such as the pricing and hedging of financial derivatives, stochastic optimal control problems, optimal stopping problems and gene expression. Most BSDEs cannot be solved analytically and thus numerical methods must be applied to approximate their solutions. There have been a variety of numerical methods proposed over the past few decades as well as many more currently being developed. For the most part, they exist in a complex and scattered manner with each requiring a variety of assumptions and conditions. The aim of the present work is thus to systematically survey various numerical methods for BSDEs, and in particular, compare and categorize them, for further developments and improvements. To achieve this goal, we focus primarily on the core features of each method based on an extensive collection of 333 references: the main assumptions, the numerical algorithm itself, key convergence properties and advantages and disadvantages, to provide an up-to-date coverage of numerical methods for BSDEs, with insightful summaries of each and a useful comparison and categorization.
description: 51 pages
Spatial Non-Locality Induced Non-Markovian EIT in a Single Giant Atom
Creators: name: Zhu, Yuting
name: Wu, Rebing
name: Xue, Shibei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In recent experiments, electromagnetically induced transparency (EIT) were observed with giant atoms, but nothing unconventional were found from the transmission spectra. In this letter, we show that unconventional EIT does exist in giant atoms, and indicate why it has not been observed so far. Different from these existing works, this letter presents a consistent theory including a real space method and a time delayed master equation for observing unconventional EIT. We discover that this phenomenon is a quantum effect which cannot be correctly described in a semi-classical way as those in recent works. Our theory shows that it can be observed when the time delay between two neighboring coupling points is comparable to the relaxation time of the atom, which is crucial for a future experimental observation. This new phenomenon results from inherent non-locality of the giant atom, which physically forces propagating fields to be standing waves in space and the atom exhibiting retardations in time. Our theory establishes a framework for application of nonlocal systems to quantum information processing.
description: 6 pages, 3 figures, Comments are welcome
On the Convergence of Stochastic Gradient Descent with Bandwidth-based Step Size
Creators: name: Wang, Xiaoyu
name: Yuan, Ya-xiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 65K05, 65K10, 90C15

description: We investigate the stochastic gradient descent (SGD) method where the step size lies within a banded region instead of being given by a fixed formula. The optimal convergence rate under mild conditions and large initial step size is proved. Our analysis provides comparable theoretical error bounds for SGD associated with a variety of step sizes. In addition, the convergence rates for some existing step size strategies, e.g., triangular policy and cosine-wave, can be revealed by our analytical framework under the boundary constraints. The bandwidth-based step size provides efficient and flexible step size selection in optimization. We also propose a $1/t$ up-down policy and give several non-monotonic step sizes. Numerical experiments demonstrate the efficiency and significant potential of the bandwidth-based step-size in many applications.
A note on directional Lipschitz continuity in the Euclidean plane
Creators: name: Hruška, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26B05

description: We prove a stronger version of a conjecture stated in a paper from 2017 by J. M. Ash and S. Catoiu concerning relations between various notions of the Lipschitz property and differentiability in the Euclidean plane. We also provide an improved version of the main result of that paper.
description: 6 pages
Intrinsic dimension of neural activity: comparing artificial and biological neural networks
Creators: name: Fadanni, Jacopo
name: Gasparotto, Giacomo
name: Pacelli, Rosalba
name: Dal Maschio, Marco
name: Salamanca, Marco
name: Albanesi, Marica
name: Rotondo, Pietro
name: Allegra, Michele
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Phanaeus chalcomelas
Creators: name: Lizardo, Viridiana
name: Moctezuma, Víctor
name: Escobar-Sarria, Federico
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Phanaeus
Phanaeus chalcomelas

description: Phanaeus chalcomelas (Perty, 1830) Recorded Distribution: BOLIVIA: Cochabamba — Carrasco, Santa Cruz — Ichilo; BRAZIL: Amapá — Laranjal do Jari, Amazonas — São Gabriel de Cahoeira, Rio Preto da Eva, Pará — Almerim, Rondônia — Cacaulândia; COLOMBIA: Amazonas — Leticia, Caquetá — Solano, Guaviare — San José del Guaviare, Meta — Puerto López, San Martín, La Uribe, Putumayo — Puerto Asís, Vaupés — Taraira, Vichada — Santa Rita, ECUADOR: Azuay — Pucará, Loja — Saraguro, Morona Santiago — Taisha, Morona, Sucúa, Limón Indanza, Tiwintza, Napo — El Chaco, Tena, Orellana — La Joya de los Sachas, Loreto, Orellana, Aguarico, Pastaza — Arajuno, Mejía, Pastaza, Pichincha — Quito, Sucumbios — Lago Agrio, Cascales, Putumayo, Gonzalo Pizarro, Shushufindi, Tungurahua — Santiago de Pillaro, Zamora Chinchipe — Zamora, FRENCH GUIANA: Cayenne — Iracoubo, Kourou, Roura, Saint-Elie, Régina (-Kaw), Camopi, Saint-Laurent-du- Maroni — Saint-Laurent (du Maroni), Saül, Maripasoula, PERU: Amazonas — Condorcanqui, Cusco — La Convención, Paucartambo, Junín — Satipo, Loreto — Maynas, Loreto, Requena, Madre de Dios — Manu, Tambopata, Ucayali — Coronel Portillo, SURINAME: Brokopondo — Brownsweg, Sipaliwini — Tapanahony. Altitude: from 25 to 3508 m a.s.l. Biomes: Tropical & Subtropical Grasslands, Savannas & Shrublands, Tropical & Subtropical Moist Broadleaf Forests. Ecorregions: NEOTROPIC: Llanos, Guianan lowland moist forests, Negro-Branco moist forests, Guianan Highlands moist forests, Caqueta moist forests, Rio Negro campinarana, Napo moist forests, Purus várzea, Northwest Andean montane forests, Eastern Cordillera Real montane forests, Uatumã-Trombetas moist forests, Marajó várzea, Solimões-Japurá moist forests, Ucayali moist forests, Southwest Amazon moist forests, Madeira-Tapajós moist forests, Southwest Amazon moist forest. Predicted distribution: This species distributes from -17.88° to 10.75° latitude in an area of 2,221,692 Km2. Its predicted distribution has a mean annual temperature of 24.96-26.07° C with a maximum difference of temperature of 11.65° C during the year and mean precipitation of 2249-2994 mm per year.
description: Published as part of Lizardo, Viridiana, Moctezuma, Víctor & Escobar-Sarria, Federico, 2022, Predicted and recorded distribution maps of the genus Phanaeus (Coleoptera: Scarabaeidae). Supplementary material of Distribution, Regionalization, and Diversity of the dung beetle genus Phanaeus MacLeay (Coleoptera: Scarabaeidae) using Species Distribution Models, pp. 1-77 in Zootaxa (suppl.) (suppl.) 5213 (5) on pages 16-17, DOI: 10.5281/zenodo.7387492
Optimal arbitrarily accurate composite pulse sequences
Creators: name: Low, Guang Hao
name: Yoder, Theodore J.
name: Chuang, Isaac L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Implementing a single qubit unitary is often hampered by imperfect control. Systematic amplitude errors $ε$, caused by incorrect duration or strength of a pulse, are an especially common problem. But a sequence of imperfect pulses can provide a better implementation of a desired operation, as compared to a single primitive pulse. We find optimal pulse sequences consisting of $L$ primitive $π$ or $2π$ rotations that suppress such errors to arbitrary order $\mathcal{O}(ε^{n})$ on arbitrary initial states. Optimality is demonstrated by proving an $L=\mathcal{O}(n)$ lower bound and saturating it with $L=2n$ solutions. Closed-form solutions for arbitrary rotation angles are given for $n=1,2,3,4$. Perturbative solutions for any $n$ are proven for small angles, while arbitrary angle solutions are obtained by analytic continuation up to $n=12$. The derivation proceeds by a novel algebraic and non-recursive approach, in which finding amplitude error correcting sequences can be reduced to solving polynomial equations.
description: 12 pages, 5 figures, submitted to Physical Review A