cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution of density and velocity profiles of matter in large voids
Creators: name: Tsizh, Maksym
name: Novosyadlyj, Bohdan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyse the evolution of cosmological perturbations which leads to the formation of large voids in the distribution of galaxies. We assume that perturbations are spherical and all components of the Universe - radiation, matter and dark energy - are continuous media with ideal fluid energy-momentum tensors, which interact only gravitationally. Equations of the evolution of perturbations in the comoving to cosmological background reference frame for every component are obtained from equations of conservation and Einstein's ones and are integrated by modified Euler method. Initial conditions are set at the early stage of evolution in the radiation-dominated epoch, when the scale of perturbation is mush larger than the particle horizon. Results show how the profiles of density and velocity of matter in spherical voids with different overdensity shells are formed.
description: 9 figures
Cyber LOPA: An Integrated Approach for the Design of Dependable and Secure Cyber Physical Systems
Creators: name: Tantawy, Ashraf
name: Abdelwahed, Sherif
name: Erradi, Abdelkarim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Safety risk assessment is an essential process to ensure a dependable Cyber-Physical System (CPS) design. Traditional risk assessment considers only physical failures. For modern CPS, failures caused by cyber attacks are on the rise. The focus of latest research effort is on safety-security lifecycle integration and the expansion of modeling formalisms for risk assessment to incorporate security failures. The interaction between safety and security lifecycles and its impact on the overall system design, as well as the reliability loss resulting from ignoring security failures are some of the overlooked research questions. This paper addresses these research questions by presenting a new safety design method named Cyber Layer Of Protection Analysis (CLOPA) that extends existing LOPA framework to include failures caused by cyber attacks. The proposed method provides a rigorous mathematical formulation that expresses quantitatively the trade-off between designing a highly-reliable versus a highly-secure CPS. We further propose a co-design lifecycle process that integrates the safety and security risk assessment processes. We evaluate the proposed CLOPA approach and the integrated lifecycle on a practical case study of a process reactor controlled by an industrial control testbed, and provide a comparison between the proposed CLOPA and current LOPA risk assessment practice.
description: Preprint version of the published paper
Indexing and querying color sets of images
Creators: name: Belazzougui, Djamal
name: Kolpakov, Roman
name: Raffinot, Mathieu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We aim to study the set of color sets of continuous regions of an image given as a matrix of $m$ rows over $n\geq m$ columns where each element in the matrix is an integer from $[1,σ]$ named a {\em color}. The set of distinct colors in a region is called fingerprint. We aim to compute, index and query the fingerprints of all rectangular regions named rectangles. The set of all such fingerprints is denoted by ${\cal F}$. A rectangle is {\em maximal} if it is not contained in a greater rectangle with the same fingerprint. The set of all locations of maximal rectangles is denoted by $\mathcal{L}.$ We first explain how to determine all the $|\mathcal{L}|$ maximal locations with their fingerprints in expected time $O(nm^2σ)$ using a Monte Carlo algorithm (with polynomially small probability of error) or within deterministic $O(nm^2σ\log(\frac{|\mathcal{L}|}{nm^2}+2))$ time. We then show how to build a data structure which occupies $O(nm\log n+\mathcal{|L|})$ space such that a query which asks for all the maximal locations with a given fingerprint $f$ can be answered in time $O(|f|+\log\log n+k)$, where $k$ is the number of maximal locations with fingerprint $f$. If the query asks only for the presence of the fingerprint, then the space usage becomes $O(nm\log n+|{\cal F}|)$ while the query time becomes $O(|f|+\log\log n)$. We eventually consider the special case of squared regions (squares).
description: 20 pages, 5 figures
title: Ehrenzeichen und Einsatzmedaillen der Bundeswehr
Creators: name: Brammer, Uwe
name: Bundesministerium Der Verteidigung
Publisher: name: Fachinformationszentrum der Bundeswehr
Year: 2023

description: Die Broschüre informiert über Geschichte, Verleihungsvoraussetzungen und Verleihungspraxis der Ehrenzeichen und Einsatzmedaillen der Bundeswehr.
Inverted pendulum driven by a horizontal random force: statistics of the never-falling trajectory and supersymmetry
Creators: name: Stepanov, Nikolai A.
name: Skvortsov, Mikhail A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study stochastic dynamics of an inverted pendulum subject to a random force in the horizontal direction (Whitney's problem). Considered on the entire time axis, the problem admits a unique solution that always remains in the upper half plane. We formulate the problem of statistical description of this never-falling trajectory and solve it by a field-theoretical technique assuming a white-noise driving. In our approach based on the supersymmetric formalism of Parisi and Sourlas, statistic properties of the never-falling trajectory are expressed in terms of the zero mode of the corresponding transfer-matrix Hamiltonian. The emerging mathematical structure is similar to that of the Fokker-Planck equation, which however is written for the "square root" of the probability distribution function. Our results for the statistics of the non-falling trajectory are in perfect agreement with direct numerical simulations of the stochastic pendulum equation. In the limit of strong driving (no gravitation), we obtain an exact analytical solution for the instantaneous joint probability distribution function of the pendulum's angle and its velocity.
description: 25 pages, 5 figures
title: Bekleidung und Uniformen der Bundeswehr : Schutz- und Sonderbekleidung, Kennzeichnungen sowie Abzeichen
Creators: name: Bundesministerium Der Verteidigung
Publisher: name: Fachinformationszentrum der Bundeswehr
Year: 2023

description: Die Broschüre stellt die Uniformen der Teilstreitkräfte Heer, Luftwaffe, Marine und Sanitätsdienst der Bundeswehr vor. Neben Dienstanzug und Feldanzug werden die Dienstgradabzeichen aufgeführt. Darüber hinaus werden Sonderbekleidungen sowie Abzeichen und Auszeichnungen gezeigt.
Einstein-Podolsky-Rosen Entanglement of Narrowband Photons from Cold Atoms
Creators: name: Lee, Jong-Chan
name: Park, Kwang-Kyoon
name: Zhao, Tian-Ming
name: Kim, Yoon-Ho
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Einstein-Podolsky-Rosen (EPR) entanglement introduced in 1935 deals with two particles that are entangled in their positions and momenta. Here we report the first experimental demonstration of EPR position-momentum entanglement of narrowband photon pairs generated from cold atoms. By using two-photon quantum ghost imaging and ghost interference, we demonstrate explicitly that the narrowband photon pairs violate the separability criterion, confirming EPR entanglement. We further demonstrate continuous variable EPR steering for positions and momenta of the two photons. Our new source of EPR-entangled narrowband photons is expected to play an essential role in spatially-multiplexed quantum information processing, such as, storage of quantum correlated images, quantum interface involving hyper-entangled photons, etc.
Independent sets near the lower bound in bounded degree graphs
Creators: name: Dvorak, Zdenek
name: Lidicky, Bernard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2; G.2.2
subject: 05C85 (Primary), 05C69 (Secondary)

description: By Brook's Theorem, every n-vertex graph of maximum degree at most Delta >= 3 and clique number at most Delta is Delta-colorable, and thus it has an independent set of size at least n/Delta. We give an approximate characterization of graphs with independence number close to this bound, and use it to show that the problem of deciding whether such a graph has an indepdendent set of size at least n/Delta+k has a kernel of size O(k).
description: 19 pages, 6 figures; fixes an error pointed out by Andrea Munaro
Limiting Sobolev and Hardy inequalities on stratified homogeneous groups
Creators: name: Van Schaftingen, Jean
name: Yung, Po-Lam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 35R03 (26D15, 35A23, 35H20, 43A80, 46E35)

description: We give a sufficient condition for limiting Sobolev and Hardy inequalities to hold on stratified homogeneous groups. In the Euclidean case, this condition reduces to the known cancelling necessary and sufficient condition. We obtain in particular endpoint Korn--Sobolev and Korn--Hardy inequalities on stratified homogeneous groups.
description: To appear in Ann. Fenn. Math
Multiple scattering of polarized light in disordered media exhibiting short-range structural correlations
Creators: name: Vynck, Kevin
name: Pierrat, Romain
name: Carminati, Rémi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop a model based on a multiple scattering theory to describe the diffusion of polarized light in disordered media exhibiting short-range structural correlations. Starting from exact expressions of the average field and the field spatial correlation function, we derive a radiative transfer equation for the polarization-resolved specific intensity that is valid for weak disorder and we solve it analytically in the diffusion limit. A decomposition of the specific intensity in terms of polarization eigenmodes reveals how structural correlations, represented via the standard anisotropic scattering parameter $g$, affect the diffusion of polarized light. More specifically, we find that propagation through each polarization eigenchannel is described by its own transport mean free path that depends on $g$ in a specific and non-trivial way.
Instructions to set up Zoom events
Creators: name: de Lima, Joelyn
name: Smith, Lilian
Publisher: name: Zenodo
Year: 2021

description: This document provides Instructions to set up Zoom events. Date Created: 19th October 2021 This article/publication is based upon work from COST Action < CA17127 Building on scientific literacy in Evolution towards scientifically responsible Europeans >, supported by COST (European Cooperation in Science and Technology). www.euroscitizen.eu
Parameterizing roots of polynomial congruences
Creators: name: Welsh, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A07 (Primary) 11C08, 11R47, 11F99 (Secondary)

description: We use the arithmetic of ideals in orders to parameterize the roots $μ\pmod m$ of the polynomial congruence $F(μ) \equiv 0 \pmod m$, $F(X) \in \mathbb{Z}[X]$ monic, irreducible and degree $d$. Our parameterization generalizes Gauss's classic parameterization of the roots of quadratic congruences using binary quadratic forms, which had previously only been extended to the cubic polynomial $F(X) = X^3 - 2$. We show that only a special class of ideals are needed to parameterize the roots $μ\pmod m$, and that in the cubic setting, $d = 3$, general ideals correspond to pairs of roots $μ_1 \pmod{m_1}$, $μ_2 \pmod {m_2}$ satisfying $\gcd(m_1, m_2, μ_1 - μ_2) = 1$. At the end we illustrate our parameterization and this correspondence between roots and ideals with a few applications, including finding approximations to $\fracμ{m} \in \mathbb{R}/ \mathbb{Z}$, finding an explicit Euler product for the co-type zeta function of $\mathbb{Z}[2^{\frac{1}{3}}]$, and computing the composition of cubic ideals in terms of the roots $μ_1 \pmod {m_1}$ and $μ_2 \pmod {m_2}$.
description: 52 pages, to be published in Algebra and Number Theory
title: Europäische Metrologie
Creators: name: Göbel, Ernst O.
name: Kühne, Michael
name: Schmid, Wolfgang
name: Stenger, Jörn
name: Siegner, Uwe
name: Bosse, Harald
name: Koch, Hans
name: Buck, Wolfgang
name: Leitner, Arnold
name: Pendrill, Leslie
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2014

description: PTB-Mitteilungen. Band 119 (2009), Heft 4, Seite 305 - 342. ISSN 0030-834X
Ginzburg-Landau relaxation for harmonic maps on planar domains into a general compact vacuum manifold
Creators: name: Monteil, Antonin
name: Rodiac, Rémy
name: Van Schaftingen, Jean
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the asymptotic behaviour, as a small parameter $\varepsilon$ tends to zero, of minimisers of a Ginzburg-Landau type energy with a nonlinear penalisation potential vanishing on a compact submanifold $\mathcal{N}$ and with a given $\mathcal{N}$-valued Dirichlet boundary data. We show that minimisers converge up to a subsequence to a singular $\mathcal{N}$-valued harmonic map, which is smooth outside a finite number of points around which the energy concentrates and whose singularities' location minimises a renormalised energy, generalising known results by Bethuel, Brezis and Hélein for the circle $\mathbb{S}^1$. We also obtain $Γ$-convergence results and uniform Marcinkiewicz weak $L^2$ or Lorentz $L^2$ estimates on the derivatives. We prove that solutions to the corresponding Euler-Lagrange equation converge uniformly to the constraint and converge to harmonic maps away from singularities.
description: 41 pages, minor revision
title: PTR/PTB: 125 Jahre metrologische Forschung (Auszug aus: PTB-Mitteilungen 2012, Band 122, Heft 2. ISSN 0030-834X)
Creators: name: Bosse, Harald
name: Buck, Wolfgang
name: Göbel, Ernst Otto
name: Hoffmann, Dieter
name: Hollandt, Jörg
name: Kind, Dieter
name: Rechenberg, Helmut
name: Schmid, Wolfgang
name: Schwartz, Roman
name: Simon, Jens
name: Ulbig, Peter
name: Wynands, Robert
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2015

description: PTB-Mitteilungen. Band 122 (2012), Heft 2. ISSN 0030-834X
Combinatorial Ricci flows and the hyperbolization of a class of compact 3-manifolds
Creators: name: Feng, Ke
name: Ge, Huabin
name: Hua, Bobo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We prove that for a compact 3-manifold M with boundary admitting an ideal triangulation T with valence at least 10 at all edges, there exists a unique complete hyperbolic metric with totally geodesic boundary, so that T is isotopic to a geometric decomposition of M. Our approach is to use a variant of the combinatorial Ricci flow introduced by Luo [Luo05] for pseudo 3-manifolds. In this case, we prove that the extended Ricci flow converges to the hyperbolic metric exponentially fast.
description: 31 pages. This is a revision of the paper
Mitiq: A software package for error mitigation on noisy quantum computers
Creators: name: LaRose, Ryan
name: Mari, Andrea
name: Kaiser, Sarah
name: Karalekas, Peter J.
name: Alves, Andre A.
name: Czarnik, Piotr
name: Mandouh, Mohamed El
name: Gordon, Max H.
name: Hindy, Yousef
name: Robertson, Aaron
name: Thakre, Purva
name: Wahl, Misty
name: Samuel, Danny
name: Mistri, Rahul
name: Tremblay, Maxime
name: Gardner, Nick
name: Stemen, Nathaniel T.
name: Shammah, Nathan
name: Zeng, William J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce Mitiq, a Python package for error mitigation on noisy quantum computers. Error mitigation techniques can reduce the impact of noise on near-term quantum computers with minimal overhead in quantum resources by relying on a mixture of quantum sampling and classical post-processing techniques. Mitiq is an extensible toolkit of different error mitigation methods, including zero-noise extrapolation, probabilistic error cancellation, and Clifford data regression. The library is designed to be compatible with generic backends and interfaces with different quantum software frameworks. We describe Mitiq using code snippets to demonstrate usage and discuss features and contribution guidelines. We present several examples demonstrating error mitigation on IBM and Rigetti superconducting quantum processors as well as on noisy simulators.
description: 33 pages, 8 figures. The Mitiq GitHub is https://github.com/unitaryfund/mitiq and the Mitiq documentation is https://mitiq.readthedocs.io/en/stable/
A Network Simplex Method for the Budget-Constrained Minimum Cost Flow Problem
Creators: name: Holzhauser, Michael
name: Krumke, Sven O.
name: Thielen, Clemens
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a specialized network simplex algorithm for the budget-constrained minimum cost flow problem, which is an extension of the traditional minimum cost flow problem by a second kind of costs associated with each edge, whose total value in a feasible flow is constrained by a given budget B. We present a fully combinatorial description of the algorithm that is based on a novel incorporation of two kinds of integral node potentials and three kinds of reduced costs. We prove optimality criteria and combine two methods that are commonly used to avoid cycling in traditional network simplex algorithms into new techniques that are applicable to our problem. With these techniques and our definition of the reduced costs, we are able to prove a pseudo-polynomial running time of the overall procedure, which can be further improved by incorporating Dantzig's pivoting rule. Moreover, we present computational results that compare our procedure with Gurobi.
The integral monodromy of isolated quasihomogeneous singularities
Creators: name: Hertling, Claus
name: Mase, Makiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 32S40, 15B36, 11C20, 47A80

description: The integral monodromy on the Milnor lattice of an isolated quasihomogeneous singularity is subject of an almost untouched conjecture of Orlik from 1972. We prove this conjecture for all iterated Thom-Sebastiani sums of chain type singularities and cycle type singularities. The main part of the paper is purely algebraic. It provides tools for dealing with sums and tensor products of ${\mathbb Z}$-lattices with automorphisms of finite order and with cyclic generators. The calculations are involved. They use fine properties of unit roots, cyclotomic polynomials, their resultants and discriminants.
description: 84 pages
Machine learning quantum phases of matter beyond the fermion sign problem
Creators: name: Broecker, Peter
name: Carrasquilla, Juan
name: Melko, Roger G.
name: Trebst, Simon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: State-of-the-art machine learning techniques promise to become a powerful tool in statistical mechanics via their capacity to distinguish different phases of matter in an automated way. Here we demonstrate that convolutional neural networks (CNN) can be optimized for quantum many-fermion systems such that they correctly identify and locate quantum phase transitions in such systems. Using auxiliary-field quantum Monte Carlo (QMC) simulations to sample the many-fermion system, we show that the Green's function (but not the auxiliary field) holds sufficient information to allow for the distinction of different fermionic phases via a CNN. We demonstrate that this QMC + machine learning approach works even for systems exhibiting a severe fermion sign problem where conventional approaches to extract information from the Green's function, e.g.~in the form of equal-time correlation functions, fail. We expect that this capacity of hierarchical machine learning techniques to circumvent the fermion sign problem will drive novel insights into some of the most fundamental problems in statistical physics.
description: Comments: 8 pages, 6 figures
Discrete Conformal Geometry of Polyhedral Surfaces and Its Convergence
Creators: name: Luo, Feng
name: Sun, Jian
name: Wu, Tianqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The paper proves a result on the convergence of discrete conformal maps to the Riemann mappings for Jordan domains. It is a counterpart of Rodin-Sullivan's theorem on convergence of circle packing mappings to the Riemann mapping in the new setting of discrete conformality. The proof follows the same strategy that Rodin-Sullivan used by establishing a rigidity result for regular hexagonal triangulations of the plane and estimating the quasiconformal constants associated to the discrete conformal maps.
description: 37 pages, 11 figures
Gamma-ray Novae: Rare or Nearby?
Creators: name: Morris, Paul J.
name: Cotter, Garret
name: Brown, Anthony M.
name: Chadwick, Paula M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Classical Novae were revealed as a surprise source of gamma-rays in Fermi LAT observations. During the first 8 years since the LAT was launched, 6 novae in total have been detected to > 5 sigma in gamma-rays, in contrast to the 69 discovered optically in the same period. We attempt to resolve this discrepancy by assuming all novae are gamma-ray emitters, and assigning peak one-day fluxes based on a flat distribution of the known emitters to a simulated population. To determine optical parameters, the spatial distribution and magnitudes of bulge and disc novae in M31 are scaled to the Milky Way, which we approximate as a disc with a 20 kpc radius and elliptical bulge with semi major axis 3 kpc and axis ratios 2:1 in the xy plane. We approximate Galactic reddening using a double exponential disc with vertical and radial scale heights of r_d = 5 kpc and z_d = 0.2 kpc, and demonstrate that even such a rudimentary model can easily reproduce the observed fraction of gamma-ray novae, implying that these apparently rare sources are in fact nearby and not intrinsically rare. We conclude that classical novae with m_R < 12 and within ~8 kpc are likely to be discovered in gamma-rays using the Fermi LAT.
description: Accepted by MNRAS, 10 pages, 7 figures
Active DMPs for Photon and Neutron RIs
Creators: name: Goerzig, Heike
name: Bunakov, Vasily
name: Gonzalez-Beltran, Alejandra
name: Malka, Janusz
name: Matthews, Brian
name: McBirnie, Abigail
name: Soler, Nicolas
name: Vizcaino, Noel
name: Bodin, Marjolaine
name: Bolmsten, Fredrik
name: Vukolov, Andrei
name: Ounsy, Majid
Publisher: name: Zenodo
Year: 2022
Subjects: Active DMP
Data Management Plan
ExPaNDS
Photons and Neutrons
FAIR

description: This deliverable envisions an integrated aDMP system which supports the (semi-) automated generation of DMPs by maximising reuse of information generated during the research life-cycle and also aiming to support the scientists and other stakeholders by supporting information transfer. Therefore, a data model for aDMPs focusing on the integration of information that exists before a proposal is submitted and its life-cycle integration is introduced. It relates the data model also to the template created in PaNOSC.
Equation of state dependence of directed flow in a microscopic transport model
Creators: name: Nara, Yasushi
name: Niemi, Harri
name: Steinheimer, Jan
name: Stoecker, Horst
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study the sensitivities of the directed flow in Au+Au collisions on the equation of state (EoS), employing the transport theoretical model JAM. The EoS is modified by introducing a new collision term in order to control the pressure of a system by appropriately selecting an azimuthal angle in two-body collisions according to a given EoS. It is shown that this approach is an efficient method to modify the EoS in a transport model. The beam energy dependence of the directed flow of protons is examined with two different EoS, a first-order phase transition and crossover. It is found that our approach yields quite similar results as hydrodynamical predictions on the beam energy dependence of the directed flow; Transport theory predicts a minimum in the excitation function of the slope of proton directed flow and does indeed yield negative directed flow, if the EoS with a first-order phase transition is employed. Our result strongly suggests that the highest sensitivity for the critical point can be seen in the beam energy range of $4.7\leq\srtNN\leq11.5$ GeV.
description: 7 pages, 5 figures
A counterexample to the extension space conjecture for realizable oriented matroids
Creators: name: Liu, Gaku
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C40

description: The extension space conjecture of oriented matroid theory states that the space of all one-element, non-loop, non-coloop extensions of a realizable oriented matroid of rank $d$ has the homotopy type of a sphere of dimension $d-1$. We disprove this conjecture by showing the existence of a realizable uniform oriented matroid of high rank and corank 3 with disconnected extension space.
description: 23 pages. v2: Revised introduction, corrected statement of Proposition 3.3, other minor edits
Note on surface growth approach for bulk reconstruction
Creators: name: Yu, Chao
name: Chen, Fang Zhong
name: Lin, Yi-Yu
name: Sun, Jia-Rui
name: Sun, Yuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a recent paper, a novel surface growth approach for reconstructing bulk geometry and matter fields was proposed, it was shown that this picture can be explicitly realized by the one-shot entanglement distillation tensor network and the surface state correspondence. In the present paper, we give direct analysis for the growth of the bulk minimal surfaces in asymptotically AdS 3 spacetime and show that bulk geometry can be efficiently reproduced in this way, which provides further support for the surface growth approach in entanglement wedge reconstruction.
NNLO QCD corrections to Higgs boson production at large transverse momentum
Creators: name: Chen, X.
name: Cruz-Martinez, J.
name: Gehrmann, T.
name: Glover, E. W. N.
name: Jaquier, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We derive the second-order QCD corrections to the production of a Higgs boson recoiling against a parton with finite transverse momentum, working in the effective field theory in which the top quark contributions are integrated out. To account for quark mass effects, we supplement the effective field theory result by the full quark mass dependence at leading order. Our calculation is fully differential in the final state kinematics and includes the decay of the Higgs boson to a photon pair. It allows one to make next-to-next-to- leading order (NNLO)-accurate theory predictions for Higgs-plus-jet final states and for the transverse momentum distribution of the Higgs boson, accounting for the experimental definition of the fiducial cross sections. The NNLO QCD corrections are found to be moderate and positive, they lead to a substantial reduction of the theory uncertainty on the predictions. We compare our results to 8 TeV LHC data from ATLAS and CMS. While the shape of the data is well-described for both experiments, we agree on the normalization only for CMS. By normalizing data and theory to the inclusive fiducial cross section for Higgs production, good agreement is found for both experiments, however at the expense of an increased theory uncertainty. We make predictions for Higgs production observables at the 13 TeV LHC, which are in good agreement with recent ATLAS data. At this energy, the leading order mass corrections to the effective field theory prediction become significant at large transverse momenta, and we discuss the resulting uncertainties on the predictions.
description: 28 pages, 13 figures
A step further in bioremediation: mycoremediation for soil recovery
Creators: name: Herrero, Jofre
Publisher: name: Zenodo
Year: 2023

description: LIFE MySOIL project presentation delivered by Jofre Herrero, from Eurecat, during the workshop “Mycoremediation, a sustainable strategy for the recovery of oil-contaminated sites”, organised online by LIFE MySOIL on May 11th, 2023.
description: This project has received funding from the LIFE Programme of the European Commission under contract number LIFE20 ENV/ES/000416.
Asymptotically rigid mapping class groups I: Finiteness properties of braided Thompson's and Houghton's groups
Creators: name: Genevois, Anthony
name: Lonjou, Anne
name: Urech, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F65, 20J05

description: This article is dedicated to the study of asymptotically rigid mapping class groups of infinitely-punctured surfaces obtained by thickening planar trees. Such groups include the braided Ptolemy-Thompson groups $T^\sharp,T^\ast$ introduced by Funar and Kapoudjian, and the braided Houghton groups $\mathrm{br}H_n$ introduced by Degenhardt. We present an elementary construction of a contractible cube complex, on which these groups act with cube-stabilisers isomorphic to finite extensions of braid groups. As an application, we prove Funar-Kapoudjian's and Degenhardt's conjectures by showing that $T^\sharp,T^\ast$ are of type $F_\infty$ and that $\mathrm{br}H_n$ is of type $F_{n-1}$ but not of type $F_n$.
description: 36 pages, 11 figures. Comments are welcome!
Oscillations Beyond Three-Neutrino Mixing
Creators: name: Giunti, Carlo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The current status of the phenomenology of short-baseline neutrino oscillations induced by light sterile neutrinos in the framework of 3+1 mixing is reviewed.
description: 8 pages; proceedings of Neutrino 2016, XXVII International Conference on Neutrino Physics and Astrophysics, 4-9 July 2016, London, UK
Massless Interacting Scalar Fields in de Sitter space
Creators: name: Nacir, Diana López
name: Mazzitelli, Francisco D.
name: Trombetta, Leonardo G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a method to compute the two-point functions for an $O(N)$ scalar field model in de Sitter spacetime, avoiding the well known infrared problems for massless fields. The method is based on an exact treatment of the Euclidean zero modes and a perturbative one of the nonzero modes, and involves a partial resummation of the leading secular terms. This resummation, crucial to obtain a decay of the correlation functions, is implemented along with a double expansion in an effective coupling constant $\sqrtλ$ and in $1/N$. The results reduce to those known in the leading infrared approximation and coincide with the ones obtained directly in Lorentzian de Sitter spacetime in the large $N$ limit. The new method allows for a systematic calculation of higher order corrections both in $\sqrtλ$ and in $1/N$.
description: 8 pages. Summarized version of JHEP 09 (2016) 117 [arXiv:1606.03481]. Published in the Proceedings of the 19th International Seminar on High Energy Physics (QUARKS-2016)
Shape Constrained CNN for Cardiac MR Segmentation with Simultaneous Prediction of Shape and Pose Parameters
Creators: name: Tilborghs, Sofie
name: Dresselaers, Tom
name: Claus, Piet
name: Bogaert, Jan
name: Maes, Frederik
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: Semantic segmentation using convolutional neural networks (CNNs) is the state-of-the-art for many medical segmentation tasks including left ventricle (LV) segmentation in cardiac MR images. However, a drawback is that these CNNs lack explicit shape constraints, occasionally resulting in unrealistic segmentations. In this paper, we perform LV and myocardial segmentation by regression of pose and shape parameters derived from a statistical shape model. The integrated shape model regularizes predicted segmentations and guarantees realistic shapes. Furthermore, in contrast to semantic segmentation, it allows direct calculation of regional measures such as myocardial thickness. We enforce robustness of shape and pose prediction by simultaneously constructing a segmentation distance map during training. We evaluated the proposed method in a fivefold cross validation on a in-house clinical dataset with 75 subjects containing a total of 1539 delineated short-axis slices covering LV from apex to base, and achieved a correlation of 99% for LV area, 94% for myocardial area, 98% for LV dimensions and 88% for regional wall thicknesses. The method was additionally validated on the LVQuan18 and LVQuan19 public datasets and achieved state-of-the-art results.
description: Presented at the 11th Workshop on Statistical Atlases and Computational Modeling of the Heart (STACOM 2020), held in conjunction with MICCAI 2020
This Looks Like That, Because ... Explaining Prototypes for Interpretable Image Recognition
Creators: name: Nauta, Meike
name: Jutte, Annemarie
name: Provoost, Jesper
name: Seifert, Christin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Image recognition with prototypes is considered an interpretable alternative for black box deep learning models. Classification depends on the extent to which a test image "looks like" a prototype. However, perceptual similarity for humans can be different from the similarity learned by the classification model. Hence, only visualising prototypes can be insufficient for a user to understand what a prototype exactly represents, and why the model considers a prototype and an image to be similar. We address this ambiguity and argue that prototypes should be explained. We improve interpretability by automatically enhancing visual prototypes with textual quantitative information about visual characteristics deemed important by the classification model. Specifically, our method clarifies the meaning of a prototype by quantifying the influence of colour hue, shape, texture, contrast and saturation and can generate both global and local explanations. Because of the generality of our approach, it can improve the interpretability of any similarity-based method for prototypical image recognition. In our experiments, we apply our method to the existing Prototypical Part Network (ProtoPNet). Our analysis confirms that the global explanations are generalisable, and often correspond to the visually perceptible properties of a prototype. Our explanations are especially relevant for prototypes which might have been interpreted incorrectly otherwise. By explaining such 'misleading' prototypes, we improve the interpretability and simulatability of a prototype-based classification model. We also use our method to check whether visually similar prototypes have similar explanations, and are able to discover redundancy. Code is available at https://github.com/M-Nauta/Explaining_Prototypes .
description: 10 pages, 9 figures
Area moment of inertia of a “flower-shaped” cross section and generalization for N-fold rotational symmetry and multipole moments
Creators: name: Jelitto, Hans
Publisher: name: TUHH Universitätsbibliothek
Year: 2020
Subjects: subject: bending test
subject: area moment of inertia
subject: rotational symmetry
subject: second moment of area
subject: central binomial coefficient
subject: trigonometric identity
classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: Motiviert durch 3-Punkt-Biegetests mit einem Nanoindenter und die notwendige Analyse wurde das Flächenträgheitsmoment von sehr kleinen Biegeproben mit speziellem „Blüten-förmigem“ Querschnitt analytisch berechnet. Wenn solche Querschnitte eine vierfache Rotationssymmetrie besitzen, kann gezeigt werden, dass eine Drehung des Querschnitts um einen beliebigen Winkel in Bezug auf die Referenzebene das Resultat nicht ändert. Indem gezeigt wurde, dass dies ebenfalls für N-fache Rotationssymmetrie mit N ≥ 3 als auch für eine Generalisierung auf Multipolmomente beliebiger Ordnung gilt, wurden eine Reihe interessanter Gleichungen und Prinzipien entdeckt. (Ursprünglich waren die Abschnitte 1 bis 4 eine interne Kommunikation am Institut für Keramische Hochleistungswerkstoffe, TUHH. Später kamen die Abschnitte 5 bis 7 und die Anhänge hinzu und die Einleitung wurde erweitert. Auch wenn es sich um Standardberechnungen handelt, sind sie eventuell auch für andere interessant. Damit die Idee und die Berechnungen nicht verloren gehen, werden sie auf diese Weise publiziert.)
description: Motivated by three-point bending tests with a nanoindenter and the necessary analysis, the area moment of inertia of tiny bending specimens, with a special “flower-shaped” cross section, is calculated analytically. If such cross sections have a four-fold rotational symmetry, it can be shown that a rotation of the cross section by any angle, with respect to the reference plane, does not change the result. By demonstrating that this is valid also for N-fold rotational symmetry with N ≥ 3 and by generalization for multipole moments of any order, some interesting equations and principles are found. (Originally, the chapters 1–4 were an internal communication in the Institute of Advanced Ceramics, TUHH. Later on, the chapters 5–7 and the appendices were added, and the introduction was extended. Although the calculations are standard, they are perhaps also of interest to others. In order not to lose track of the idea and the calculations, they are published in this format.)
Classical Shadows With Noise
Creators: name: Koh, Dax Enshan
name: Grewal, Sabee
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The classical shadows protocol, recently introduced by Huang, Kueng, and Preskill [Nat. Phys. 16, 1050 (2020)], is a quantum-classical protocol to estimate properties of an unknown quantum state. Unlike full quantum state tomography, the protocol can be implemented on near-term quantum hardware and requires few quantum measurements to make many predictions with a high success probability. In this paper, we study the effects of noise on the classical shadows protocol. In particular, we consider the scenario in which the quantum circuits involved in the protocol are subject to various known noise channels and derive an analytical upper bound for the sample complexity in terms of a shadow seminorm for both local and global noise. Additionally, by modifying the classical post-processing step of the noiseless protocol, we define a new estimator that remains unbiased in the presence of noise. As applications, we show that our results can be used to prove rigorous sample complexity upper bounds in the cases of depolarizing noise and amplitude damping.
description: 57 pages
The upgraded Pixel detector and the commissioning of the Inner Detector tracking of the ATLAS experiment for Run-2 at the Large Hadron Collider
Creators: name: Potamianos, Karolos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Run-2 of the Large Hadron Collider (LHC) will provide new challenges to track and vertex reconstruction with higher energies, denser jets and higher rates. Therefore the ATLAS experiment has constructed the first 4-layer Pixel Detector in HEP, installing a new pixel layer, also called Insertable B-Layer (IBL). The IBL is a fourth layer of pixel detectors, and has been installed in May 2014 at a radius of 3.3 cm between the existing Pixel Detector and a new smaller radius beam-pipe. The new detector, built to cope with the high radiation and expected occupancy, is the first large scale application of 3D sensors and CMOS 130~nm readout electronics. In addition, the Pixel Detector was improved with a new service quarter panel to recover about 3\% of defective modules lost during Run-1 and a new optical readout system to readout the data at higher speed while reducing the occupancy when running with increased luminosity. Complementing detector improvements, many improvements to Inner Detector track and vertex reconstruction were developed during the two-year shutdown of the LHC. These include novel techniques developed to improve the performance in the dense cores of jets, optimisation for the expected conditions, and a software campaign which lead to a factor of three decrease in the CPU time needed to process each recorded event.
description: 15 pages, EPS-HEP 2015 Proceedings
Double-Slit Interference Pattern for a Macroscopic Quantum System
Creators: name: Naeij, Hamid Reza
name: Shafiee, Afshin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this study, we solve analytically the Schrodinger equation for a macroscopic quantum oscillator as a central system coupled to two environmental micro-oscillating particles. Then, the double-slit interference patterns are investigated in two limiting cases, considering the limits of uncertainty in the position probability distribution. Moreover, we analyze the interference patterns based on a recent proposal called stochastic electrodynamics with spin. Our results show that when the quantum character of the macro-system is decreased, the diffraction pattern becomes more similar to a classical one. We also show that, depending on the size of the slits, the predictions of quantum approach could be apparently different with those of the aforementioned stochastic description
description: Foundations of physics, Springer,2016
Probing transport and slow relaxation in the mass-imbalanced Fermi-Hubbard model
Creators: name: Oppong, Nelson Darkwah
name: Pasqualetti, Giulio
name: Bettermann, Oscar
name: Zechmann, Philip
name: Knap, Michael
name: Bloch, Immanuel
name: Fölling, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Constraints in the dynamics of quantum many-body systems can dramatically alter transport properties and relaxation timescales even in the absence of static disorder. Here, we report on the observation of such constrained dynamics arising from the distinct mobility of two species in the one-dimensional mass-imbalanced Fermi-Hubbard model, realized with ultracold ytterbium atoms in a state-dependent optical lattice. By displacing the trap potential and monitoring the subsequent dynamical response of the system, we identify suppressed transport and slow relaxation with a strong dependence on the mass imbalance and interspecies interaction strength, consistent with eventual thermalization for long times. Our observations demonstrate the potential for quantum simulators to provide insights into unconventional relaxation dynamics arising from constraints.
description: 8 pages, 4 figures; Supplemental Material
Report on lessons learned and future prospects for adopting best practices
Creators: name: Konrad, Uwe
name: Knodel, Oliver
name: Valcarcel-Orti, Ana
name: Padovani, Antoine
name: Albert, Clara
name: Gutierrez, Marta
Publisher: name: Zenodo
Year: 2023
Subjects: PaN training
ExPaNDS
FAIR
e-learning
training

description: Report on lessons learned and future prospects for adopting best practices in education and training (incl. the training platform) on data FAIR principles, data management and data stewardship at the ExPaNDS RIs and in the PaN community at large.
A Study of Universal Thermodynamics in Lanczos-Lovelock gravity
Creators: name: Mitra, Saugata
name: Saha, Subhajit
name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A study of Universal thermodynamics is done in Lanczos-Lovelock gravity. The Universe is chosen as FRW model bounded by apparent or event horizon. The unified first law is examined, assuming extended Hawking temperature on the horizon. As a result there is a modification of Bekenstein entropy on the horizons. Further the validity of generalized second law of thermodynamics and thermodynamical equilibrium are also investigated for perfect fluid (with constant equation of state), modified chaplygin gas model and holographic dark energy model.
Best Practises and Guidelines for Hybrid COST Meetings
Creators: name: de Lima, Joelyn
name: Smith, Lilian
Publisher: name: Zenodo
Year: 2021

description: This document provides Best Practises and Guidelines for Hybrid COST Meetings Date Created: 19th October 2021
 This article/publication is based upon work from COST Action < CA17127 Building on scientific literacy in Evolution towards scientifically responsible Europeans >, supported by COST (European Cooperation in Science and Technology). www.euroscitizen.eu