cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tree-level entanglement in Quantum Electrodynamics
Creators: name: Fedida, Samuel
name: Serafini, Alessio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on a systematic study on the entanglement between helicity degrees of freedom generated at tree-level in quantum electrodynamics two-particle scattering processes. We determine the necessary and sufficient dynamical conditions for outgoing particles to be entangled with one another, and expose the hitherto unknown generation of maximal or nearly maximal entanglement through Bhabha and Compton scattering. Our work is an early step in revisiting quantum field theory and high-energy physics in the light of quantum information theory.
description: 12 pages, 21 figures
Optical Frequency Combs in Aqueous and Air Environments at Visible to Near-IR Wavelengths
Creators: name: Choi, Gwangho
name: Gin, Adley
name: Su, Judith
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The ability to detect and identify molecules at high sensitivity without the use of labels or capture agents is important for medical diagnostics, threat identification, environmental monitoring, and basic science. Microtoroid optical resonators, when combined with noise reduction techniques, have been shown capable of label-free single molecule detection, however, they still require a capture agent and prior knowledge of the target molecule. Optical frequency combs can potentially provide high precision spectroscopic information on molecules within the evanescent field of the microresonator; however, this has not yet been demonstrated in air or aqueous biological sensing. For aqueous solutions in particular, impediments include coupling and thermal instabilities, reduced Q factor, and changes to the mode spectrum. Here we overcome a key challenge toward single-molecule spectroscopy using optical microresonators: the generation of a frequency comb at visible to near-IR wavelengths when immersed in either air or aqueous solution. The required dispersion is achieved via intermodal coupling, which we show is attainable using larger microtoroids, but with the same shape and material that has previously been shown ideal for ultra-high sensitivity biosensing. We believe that the continuous evolution of this platform will allow us in the future to simultaneously detect and identify single molecules in both gas and liquid at any wavelength without the use of labels.
On local generators of affine distributions on Riemannian manifolds
Creators: name: Tudoran, Razvan M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using a coordinate free characterization of hyperplanes intersection, we provide explicitly a set of local generators for a smooth affine distribution given by those smooth vector fields $X\in\mathfrak{X}(U)$ defined eventually on an open subset $U\subseteq M$ of a smooth Riemannian manifold $(M,g)$, that verifies the relations $g(X,X_1)=\dots =g(X,X_k)=0$, $g(X,Y_1)=h_1, \dots, g(X,Y_p)=h_p$, where $X_1,\dots, X_k, Y_1, \dots, Y_p \in\mathfrak{X}(U)$, and respectively $h_1,\dots, h_p \in \mathcal{C}^{\infty}(U,\mathbb{R})$, are a-priori given quantities. In the case when $X_1,\dots, X_k, Y_1, \dots, Y_p$ are gradient vector fields associated with some smooth functions $I_1,\dots, I_k, D_1, \dots, D_p \in \mathcal{C}^{\infty}(U,\mathbb{R})$, i.e., $X_1 =\nabla_{g}I_1$, $\dots$, $X_k = \nabla_{g}I_k$, $Y_1 = \nabla_{g}D_1$, $\dots, Y_p = \nabla_{g}D_p$, then we obtain a set of local generators for the smooth affine distribution of smooth vector fields which conserve the quantities $I_1, \dots, I_k$ and dissipate the scalar quantities $D_1, \dots, D_p$ with prescribed rates $h_1, \dots, h_p$.
description: 21 pages
Osmeriformes
Creators: name: Cohen, Simone C.
name: Kohn, Anna
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Osmeriformes

description: Order Osmeriformes  Family Galaxiidae
 Galaxias maculatus
 Inserotrema puyei (CH) Philureter trigoniopsis (AR)
description: Published as part of Cohen, Simone C. & Kohn, Anna, 2008, South American Monogenea — list of species, hosts and geographical distribution from 1997 to 2008, pp. 1-42 in Zootaxa 1924 on page 27, DOI: 10.5281/zenodo.184771
title: Susanne Reiter: Die beiden Michelsberger Anlagen von Bruchsal ,Aue' und ,Scheelkopf': Zwei ungleiche Nachbarn, 2005
Creators: name: Schyle, Daniel
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Susanne Reiter: Die beiden Michelsberger Anlagen von Bruchsal ,Aue' und ,Scheelkopf': Zwei ungleiche Nachbarn. Materialhefte zur Archäologie in BadenWürttemberg 65. Hrsg. vom Regierungspräsidium Stuttgart Archäologische
Denkmalpflege. Konrad Theiss Verlag, Stuttgart, 2005. 225 S, 151 Tafeln, 52 Tabellen, 51 Diagramme, 16 z. T. färb. Abbildungen, 4 Beilagen. ISBN 3806217394
Cumulants of net-strangeness multiplicity distributions at energies available at the BNL Relativistic Heavy Ion Collider
Creators: name: Li, Changfeng
name: Biswas, Deeptak
name: Sahoo, Nihar Ranjan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The higher-order cumulants of net-proton number, net-charge, and net-strangeness multiplicity distributions are widely studied to search for the quantum-chromodynamics critical point and extract the chemical freeze-out parameters in heavy-ion collisions. In this context, the event-by-event fluctuations of the net-strangeness multiplicity distributions play important roles in extracting the chemical freeze-out parameter in the strangeness sector. Due to having difficulties in detecting all strange hadrons event by event, the kaon ($K$) and lambda ($Λ$) particles serve as a proxy for the strangeness-related observables in heavy-ion collisions. We have studied the net-$K$, net-$Λ$, and net-($K$ + $Λ$) multiplicity distributions and calculated their different order of cumulants using the ultrarelativistic quantum molecular dynamics model and hadron resonance gas calculation. To adequately account for the net-strangeness cumulants, it has been found that the inclusion of resonance decay contributions in $K$ and $Λ$ is necessary.
description: The title has been modified. Updated following the published version
On the dimension of max-min convex sets
Creators: name: Nitica, Viorel
name: Sergeev, Sergei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 15A80, 52A01, 16Y60

description: We introduce a notion of dimension of max-min convex sets, following the approach of tropical convexity. We introduce a max-min analogue of the tropical rank of a matrix and show that it is equal to the dimension of the associated polytope. We describe the relation between this rank and the notion of strong regularity in max-min algebra, which is traditionally defined in terms of unique solvability of linear systems and trapezoidal property.
description: 19 pages, v2: many corrections in the proofs
Algorithms for minimal Picard-Fuchs operators of Feynman integrals
Creators: name: Lairez, Pierre
name: Vanhove, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In even space-time dimensions the multi-loop Feynman integrals are integrals of rational function in projective space. By using an algorithm that extends the Griffiths--Dwork reduction for the case of projective hypersurfaces with singularities, we derive Fuchsian linear differential equations, the Picard--Fuchs equations, with respect to kinematic parameters for a large class of massive multi-loop Feynman integrals. With this approach we obtain the differential operator for Feynman integrals to high multiplicities and high loop orders. Using recent factorisation algorithms we give the minimal order differential operator in most of the cases studied in this paper. Amongst our results are that the order of Picard--Fuchs operator for the generic massive two-point $n-1$-loop sunset integral in two-dimensions is $2^{n}-\binom{n+1}{\left\lfloor \frac{n+1}{2}\right\rfloor }$ supporting the conjecture that the sunset Feynman integrals are relative periods of Calabi--Yau of dimensions $n-2$. We have checked this explicitly till six loops. As well, we obtain a particular Picard--Fuchs operator of order 11 for the massive five-point tardigrade non-planar two-loop integral in four dimensions for generic mass and kinematic configurations, suggesting that it arises from $K3$ surface with Picard number 11. We determine as well Picard--Fuchs operators of two-loop graphs with various multiplicities in four dimensions, finding Fuchsian differential operators with either Liouvillian or elliptic solutions.
description: 59 pages. v2: version to appear in Letters in Mathematical Physics. Minor corrections and references updated. Results for differential operators are on the repository : https://github.com/pierrevanhove/PicardFuchs#readme
Memory-assisted measurement-device-independent quantum key distribution
Creators: name: Panayi, Christiana
name: Razavi, Mohsen
name: Ma, Xiongfeng
name: Lütkenhaus, Norbert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A protocol with the potential of beating the existing distance records for conventional quantum key distribution (QKD) systems is proposed. It borrows ideas from quantum repeaters by using memories in the middle of the link, and that of measurement-device-independent QKD, which only requires optical source equipment at the user's end. For certain fast memories, our scheme allows a higher repetition rate than that of quantum repeaters, thereby requiring lower coherence times. By accounting for various sources of nonideality, such as memory decoherence, dark counts, misalignment errors, and background noise, as well as timing issues with memories, we develop a mathematical framework within which we can compare QKD systems with and without memories. In particular, we show that with the state-of-the-art technology for quantum memories, it is possible to devise memory-assisted QKD systems that, at certain distances of practical interest, outperform current QKD implementations.
Black-box Safety Analysis and Retraining of DNNs based on Feature Extraction and Clustering
Creators: name: Attaoui, Mohammed Oualid
name: Fahmy, Hazem
name: Pastore, Fabrizio
name: Briand, Lionel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep neural networks (DNNs) have demonstrated superior performance over classical machine learning to support many features in safety-critical systems. Although DNNs are now widely used in such systems (e.g., self driving cars), there is limited progress regarding automated support for functional safety analysis in DNN-based systems. For example, the identification of root causes of errors, to enable both risk analysis and DNN retraining, remains an open problem. In this paper, we propose SAFE, a black-box approach to automatically characterize the root causes of DNN errors. SAFE relies on a transfer learning model pre-trained on ImageNet to extract the features from error-inducing images. It then applies a density-based clustering algorithm to detect arbitrary shaped clusters of images modeling plausible causes of error. Last, clusters are used to effectively retrain and improve the DNN. The black-box nature of SAFE is motivated by our objective not to require changes or even access to the DNN internals to facilitate adoption. Experimental results show the superior ability of SAFE in identifying different root causes of DNN errors based on case studies in the automotive domain. It also yields significant improvements in DNN accuracy after retraining, while saving significant execution time and memory when compared to alternatives.
description: 41 pages, 12 figures, 15 tables
Cortical feedback shapes high order structure of population activity to improve sensory coding
Creators: name: Yuan, Augustine(Xiaoran)
name: Busse, Laura
name: Młynarski, Wiktor
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Short-term adaptation reshapes retinal ganglion cell selectivity to natural scenes
Creators: name: Lorenzi, Baptiste
name: Virgili, Samuele
name: Varro, Déborah
name: Marre, Olivier
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
title: Stefanie Samida: Wissenschaftskommunikation im Internet. Neue Medien in der Archäologie, 2006
Creators: name: Kircher, Marco
Publisher: name: University Library Heidelberg
Year: 2013

description: Rezension zu: Stefanie Samida: Wissenschaftskommunikation im Internet. Neue Medien in der Archäologie. Verlag Reinhard Fischer, Reihe „Internet Research 26“.
München 2006. 262 Seiten. ISBN 3-88927-404-8, ISSN 1617-6839
The static quark potential from the gauge invariant Abelian decomposition
Creators: name: Cundy, Nigel
name: Cho, Y. M.
name: Lee, Weonjong
name: Leem, Jaehoon
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the relationship between colour confinement and topological structures derived from the gauge invariant Abelian (Cho-Duan-Ge) decomposition. This Abelian decomposition is made imposing an isometry on a colour field $n$ which selects the Abelian direction; the principle novelty of our study is that we have defined this field in terms of the eigenvectors of the Wilson Loop. This allows us to establish an equivalence between the path ordered integral of the non-Abelian gauge fields with an integral over an Abelian restricted gauge field which is tractable both theoretically and numerically in lattice QCD. By using Stokes' theorem, we can relate the Wilson Loop in terms of a surface integral over a restricted field strength, and show that the restricted field strength may be dominated by topological structures, which occur when one of the parameters parametrising the colour field $n$ winds itself around a non-analyticity in the colour field. If they exist, these objects will lead to an area law scaling for the Wilson Loop and provide a mechanism for quark confinement. We search for these structures in quenched lattice QCD. We perform the Abelian decomposition, and find that the restricted field strength is dominated by peaks on the lattice. Wilson Loops containing these peaks show a stronger area-Law and thus provide the dominant contribution to the string tension.
description: 8 pages, 3 figures; v2 some minor changes (including updated numerical results), accepted for publication in Physics Letters
Poisson2Sparse: Self-Supervised Poisson Denoising From a Single Image
Creators: name: Ta, Calvin-Khang
name: Aich, Abhishek
name: Gupta, Akash
name: Roy-Chowdhury, Amit K.
Publisher: name: arXiv
Year: 2022
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: Image enhancement approaches often assume that the noise is signal independent, and approximate the degradation model as zero-mean additive Gaussian. However, this assumption does not hold for biomedical imaging systems where sensor-based sources of noise are proportional to signal strengths, and the noise is better represented as a Poisson process. In this work, we explore a sparsity and dictionary learning-based approach and present a novel self-supervised learning method for single-image denoising where the noise is approximated as a Poisson process, requiring no clean ground-truth data. Specifically, we approximate traditional iterative optimization algorithms for image denoising with a recurrent neural network that enforces sparsity with respect to the weights of the network. Since the sparse representations are based on the underlying image, it is able to suppress the spurious components (noise) in the image patches, thereby introducing implicit regularization for denoising tasks through the network structure. Experiments on two bio-imaging datasets demonstrate that our method outperforms the state-of-the-art approaches in terms of PSNR and SSIM. Our qualitative results demonstrate that, in addition to higher performance on standard quantitative metrics, we are able to recover much more subtle details than other compared approaches. Our code is made publicly available at https://github.com/tacalvin/Poisson2Sparse
description: Accepted to MICCAI 2022
Worldsheet Description of Exotic Five-brane with Two Gauged Isometries
Creators: name: Kimura, Tetsuji
name: Sasaki, Shin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the string worldsheet description of the background geometry of the exotic $5^2_2$-brane where two isometries are gauged. This is an extension of the gauged linear sigma model (GLSM) for the exotic $5^2_2$-brane with a single gauged isometry. The new GLSM with two gauged isometries has only ${\mathcal N}=(2,2)$ supersymmetry rather than ${\mathcal N}=(4,4)$ supersymmetry of the original GLSM. This is caused by a conflict between two different $SU(2)_R$ associated with the two gauge symmetries. However, if we take a certain limit, we can find the genuine string sigma model of the background geometry of the exotic $5^2_2$-brane with ${\mathcal N}=(4,4)$ supersymmetry. We also investigate the worldsheet instanton corrections to the background geometry of the exotic $5^2_2$-brane. The worldsheet instanton corrections to the string sigma model can be traced in terms of the two gauge fields in the new GLSM. This new GLSM gives rise to a different feature of the quantum corrections from the one in the GLSM with the single gauged isometry.
description: 32 pages, accepted version in JHEP
Do direction selective retinal ganglion cells encode information uniformly?
Creators: name: Paris, Carlo
name: Hubert, Felix
name: Franke, Felix
name: Marre, Olivier
name: Chalk, Matthew
name: Ferrari, Ulisse
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Anomalous metals: from "failed superconductor" to "failed insulator"
Creators: name: Zhang, Xinyang
name: Palevski, Alexander
name: Kapitulnik, Aharon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Resistivity saturation is found on both superconducting and insulating sides of an "avoided" magnetic-field-tuned superconductor-to-insulator transition (H-SIT) in a two-dimensional In/InO$_x$ composite, where the anomalous metallic behaviors cut off conductivity or resistivity divergence in the zero-temperature limit. The granular morphology of the material implies a system of Josephson junctions (JJ) with a broad distribution of Josephson coupling E$_J$ and charging energy E$_C$ , with a H-SIT determined by the competition between E$_J$ and E$_C$ . By virtue of self-duality across the true H-SIT, we invoke macroscopic quantum tunneling effects to explain the temperature-independent resistance where the "failed superconductor" side is a consequence of phase fluctuations and the "failed insulator" side results from charge fluctuations. While true self-duality is lost in the avoided transition, its vestiges are argued to persist, owing to the incipient duality of the percolative nature of the dissipative path in the underlying random JJ system.
description: 10 pages, 7 figures, including supplementary
Spectral signatures of a unique charge density wave in Ta$_2$NiSe$_7$
Creators: name: Watson, Matthew D.
name: Louat, Alex
name: Cacho, Cephise
name: Choi, Sungkyun
name: Lee, Young Hee
name: Neumann, Michael
name: Kim, Gideok
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Charge Density Waves (CDW) are commonly associated with the presence of near-Fermi level states which are separated from others, or "nested", by a wavector of $\mathbf{q}$. Here we use Angle-Resolved Photo Emission Spectroscopy (ARPES) on the CDW material Ta$_2$NiSe$_7$ and identify a total absence of any plausible nesting of states at the primary CDW wavevector $\mathbf{q}$. Nevertheless we observe spectral intensity on replicas of the hole-like valence bands, shifted by a wavevector of $\mathbf{q}$, which appears with the CDW transition. In contrast, we find that there is a possible nesting at $\mathbf{2q}$, and associate the characters of these bands with the reported atomic modulations at $\mathbf{2q}$. Our comprehensive electronic structure perspective shows that the CDW-like transition of Ta$_2$NiSe$_7$ is unique, with the primary wavevector $\mathbf{q}$ being unrelated to any low-energy states, but suggests that the reported modulation at $\mathbf{2q}$, which would plausibly connect low-energy states, might be more important for the overall energetics of the problem.
Compactifying de Sitter Naturally Selects a Small Cosmological Constant
Creators: name: Brown, Adam R.
name: Dahlen, Alex
name: Masoumi, Ali
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study compactifications of $D$-dimensional de Sitter space with a $q$-form flux down to $D-Nq$ dimensions. We show that for $(N-1)(q-1)\geq 2$ there are double-exponentially or even infinitely many compact de Sitter vacua, and that their effective cosmological constants accumulate at zero. This population explosion of $Λ\ll 1$ de Sitters arises by a mechanism analogous to natural selection.
description: 11 pages, 5 figures
Individual addressing of trapped ion qubits with geometric phase gates
Creators: name: Sutherland, R. T.
name: Srinivas, R.
name: Allcock, D. T. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new scheme for individual addressing of trapped ion qubits, selecting them via their motional frequency. We show that geometric phase gates can perform single-qubit rotations using the coherent interference of spin-independent and (global) spin-dependent forces. The spin-independent forces, which can be generated via localised electric fields, increase the gate speed while reducing its sensitivity to motional decoherence, which we show analytically and numerically. While the scheme applies to most trapped ion experimental setups, we numerically simulate a specific laser-free implementation, showing cross-talk errors below $10^{-6}$ for reasonable parameters.
Pleuronectiformes
Creators: name: Cohen, Simone C.
name: Kohn, Anna
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Pleuronectiformes

description: Order Pleuronectiformes  Family Paralichthyidae
 Hippoglossina macrops
 Entobdella brinkmanni (CH) Neoheterobothrium chilensis (CH) Paralichthys patagonicus
 Neoheterobothrium paralichthyi (AR)
description: Published as part of Cohen, Simone C. & Kohn, Anna, 2008, South American Monogenea — list of species, hosts and geographical distribution from 1997 to 2008, pp. 1-42 in Zootaxa 1924 on page 31, DOI: 10.5281/zenodo.184771
End-to-end pipeline to achieve state-of-the-art cell typing in large-scale retinal recordings
Creators: name: Boscarino, Chiara
name: Azeglio, Simone
name: Buffet, Thomas
name: Mahuas, Gabriel
name: Ferrari, Ulisse
name: Marre, Olivier
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Geometric corrections to cosmological entanglement
Creators: name: Belfiglio, Alessio
name: Luongo, Orlando
name: Mancini, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate entanglement production by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, demonstrating that the interplay between quantum and geometric effects can have relevant consequences on entanglement entropy, with respect to homogeneous scenarios. To do so, we focus on a conformally coupled scalar field and discuss how geometric production of scalar particles leads to entanglement. Perturbatively, at first order we find oscillations in entropy correction, whereas at second order the underlying geometry induces mode-mixing on entanglement production. We thus quantify entanglement solely due to geometrical contribution and compare our outcomes with previous findings. We characterize the geometric contribution through geometric (quasi)-particles, interpreted as dark matter candidates.
description: 8 pages, 3 figures
Curvaton with nonminimal derivative coupling to gravity
Creators: name: Feng, Kaixi
name: Qiu, Taotao
name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show a curvaton model, in which the curvaton has a nonminimal derivative coupling to gravity. Thanks to such a coupling, we find that the scale-invariance of the perturbations can be achieved for arbitrary values of the equation-of-state of background, provided that it is nearly a constant. We also discussed about tensor perturbations, the local non-Gaussianities generated by the nonminimal derivative coupling curvaton model, as well as the adiabatic perturbations which are transferred from the field perturbations during the curvaton decay.
description: 11 pages
Statistical Nuclear Spectroscopy with $q$-normal and bivariate $q$-normal distributions and $q$-Hermite polynomials
Creators: name: Kota, V. K. B.
name: Vyas, Manan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Statistical nuclear spectroscopy (also called spectral distribution method), introduced by J.B. French in late 60's and developed in detail in the later years by his group and many other groups, is based on the Gaussian forms for the state (eigenvalue) and transition strength densities in shell model spaces with their extension to partial densities defined over shell model subspaces. The Gaussian forms have their basis in embedded random matrix ensembles with nuclear Hamiltonians consisting of a mean-field one-body part and a residual two-body part. However, following the recent random matrix results for the so called Sachdev-Ye-Kitaev model due to Verbaaarschot et al, embedded random matrix ensembles with $k$-body interactions are re-examined and it is shown that the density of states, transition strength densities and strength functions (partial densities) in fact follow more closely the $q$-normal distribution (the parameter $q$ is related to the fourth moment of these distributions with $q=1$ giving Gaussian and $q=0$ giving semi-circle form). The $q$-normal has the important property that it is bounded for $0 \le q < 1$. The $q$-normal (also its bivariate and general multi-variate extensions) and the associated $q$-Hermite polynomials are studied for their properties by Bryc, Szabowski and others [P.J. Szabowski, Electronic Journal of Probability {\bf 15}, 1296 (2010)]. Following these, in the present article developed is statistical nuclear spectroscopy based on $q$-normal (univariate and bivariate) distributions and the associated $q$-Hermite polynomials. In particular, formulation is presented for nuclear level densities, shell model orbit occupancies, transition strengths (for electromagnetic and $β$ and double $β$-decay type operators) and strength sums.
description: 31 pages, 4 figures. Ann. Phys. (N. Y.), Available online 29 September 2022
The Rigorous Stochastic Matrix Multiplication Scheme for the Calculations of Reduced Equilibrium Density Matrices of Open Multilevel Quantum Systems
Creators: name: Chen, Xin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding the roles of the temporary and spatial structures of quantum functional noise in open multilevel quantum molecular systems attracts a lot of theoretical interests. I want to establish a rigorous and general framework for functional quantum noises from the constructive and computational perspectives, $\it{i.e.}$ how to generate the random trajectories to reproduce the kernel and path ordering of the influence functional with effective Monte Carlo methods for arbitrary spectral densities. This construction approach aims to unify the existing stochastic models to rigorously describe the temporary and spatial structure of Gaussian quantum noises. In this paper, I review the Euclidean imaginary time influence functional and propose the stochastic matrix multiplication scheme to calculate reduced equilibrium density matrices (REDM). In addition, I review and discuss the Feynman-Vernom influence functional according to the Gaussian quadratic integral, particularly its imaginary part which is critical to the rigorous description of the quantum detailed balance. As a result, I establish the conditions under which the influence functional can be interpreted as the average of exponential functional operator over real-valued Gaussian processes for open multilevel quantum systems. I also show the difference between the local and nonlocal phonons within this framework. With the stochastic matrix multiplication scheme, I compare the normalized REDM with the Boltzmann equilibrium distribution for open multilevel quantum systems.
Asymptotic State Discrimination and a Strict Hierarchy in Distinguishability Norms
Creators: name: Chitambar, Eric
name: Hsieh, Min-Hsiu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we consider the problem of discriminating quantum states by local operations and classical communication (LOCC) when an arbitrarily small amount of error is permitted. This paradigm is known as asymptotic state discrimination, and we derive necessary conditions for when two multipartite states of any size can be discriminated perfectly by asymptotic LOCC. We use this new criterion to prove a gap in the LOCC and separable distinguishability norms. We then turn to the operational advantage of using two-way classical communication over one-way communication in LOCC processing. With a simple two-qubit product state ensemble, we demonstrate a strict majorization of the two-way LOCC norm over the one-way norm.
description: Corrected errors from the previous draft. Close to publication form
Bayesian inference and arousal modulation in spatial perception to mitigate stochasticity and volatility
Creators: name: Meijer, David
name: Dorok, Fabian
name: Barumerli, Roberto
name: Bayram, Burcu
name: Spierings, Michelle
name: Pomper, Ulrich
name: Baumgartner, Robert
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
title: Éthique de l’interrogation Ironie, exil et sexualité dans l’écriture « sadienne » de Kangni Alem
Creators: name: Dorn, Eva Andrea
Publisher: name: University Library Heidelberg
Year: 2014

description: This article deals with aspects of movement in several of Togolese author Kangni Alem’s fictional compositions. Analyzing Alem’s Cola Cola Jazz and Canailles et Charlatans permits an examination of several such sequences in detail. These texts are characterized by a particular arrangement of “auto-graphical” segments, which achieves new dimensions of polyphonic and humoristic tendencies. I propose to raise awareness of a double-sided irony, one that maps the influence of the literary market while also subverting normative discourses. Techniques of detachment or “distancing” help to weaken essentialist constructs of identity, while images are revealed as artificially made, thus disturbing the pact between author and reader.
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 6 (2013): HeLix, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2
Scorpaeniformes
Creators: name: Cohen, Simone C.
name: Kohn, Anna
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Scorpaeniformes

description: Order Scorpaeniformes   Family Sebastidae Helicolenus lengerichi
 Udonella australis (CH)
 Sebastes capensis
 Neobenedenia melleni (CH, PE)
 Udonella australis (CH)
description: Published as part of Cohen, Simone C. & Kohn, Anna, 2008, South American Monogenea — list of species, hosts and geographical distribution from 1997 to 2008, pp. 1-42 in Zootaxa 1924 on pages 31-32, DOI: 10.5281/zenodo.184771
Highly cooperative stress relaxation in two-dimensional soft colloidal crystals
Creators: name: van der Meer, B.
name: Qi, W.
name: Fokkink, R.
name: van der Gucht, J.
name: Dijkstra, M.
name: Sprakel, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Stress relaxation in crystalline solids is mediated by the formation and diffusion of defects. While it is well established how externally-generated stresses relax, through the proliferation and motion of dislocations in the lattice, it remains relatively unknown how crystals cope with internal stresses. We investigate, both experimentally and in simulations, how highly localized stresses relax in two-dimensional soft colloidal crystals. When a single particle is actively excited, by means of optical tweezing, a rich variety of highly collective stress relaxation mechanisms results. These manifest in the form of open strings of cooperatively moving particles through the motion of dissociated vacancy-interstitial pairs, and closed loops of mobile particles, which either result from cooperative rotations in transiently generated circular grain boundaries or through the closure of an open string by annihilation of a vacancy-interstitial pair. Surprisingly, we find that the same collective events occur in crystals which are excited by thermal fluctuations alone; a large thermal agitation inside the crystal lattice can trigger the irreversible displacements of hundreds of particles. Our results illustrate how local stresses can induce large scale cooperative dynamics in two-dimensional soft colloidal crystals and shed new light on the stabilisation mechanisms in ultrasoft crystals.
Spatial scale and coordinates of motion representation in the mouse Nucleus of the Optic Tract
Creators: name: Rosselli, Federica B.
name: Buettner, Marc
name: Franke, Felix
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Sensory processing and perception

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
title: Techniques and historical characteristics of brown slip – a correction
Creators: name: Wolters, Jochem
Publisher: name: University Library Heidelberg
Year: 2014

description: Der Braunfirnis ist eine der am wenigsten erforschten Goldschmiedetechniken. Dieser Beitrag beschreibt erstmals u. a. auf Basis neu erschlossener Quellen die Varianten der Technik, geht auf Eigenschaften und Geschichte der verwendeten Werkstoffe ein, revidiert die überkommenen Ansichten von der zeitlichen sowie geographischen Verbreitung dieser Technik, schildert die spät einsetzende Rezeptionsgeschichte und gibt in einem Katalog mit 236 Nummern einen Überblick über die heute bekannten historischen Braunfirnisarbeiten, ihre technischen Merkmale, ihre gestalterischen Motive und ihre Herkunft. Den Abschluss bildet ein umfangreiches Literaturverzeichnis, das die äußerst verstreut erschienenen Beiträge zu dieser Technik zusammenfasst
description: The brown slip is one of the least investigated techniques of goldsmithry. For the first time this paper describes the variations of the technique and is based upon amongst others newly accessible sources; it discusses the characteristics and history of the materials used; it revises the traditional views on the chronological
and geographical spread of this technique; it describes the history of reception, which started very ate, and provides in a catalogue with 236 numbers an overview of the historical works of brown slip known today, its technical traits, its formative motives and its origins. The conclusion is provided by a comprehensive bibliography which collates the widely scattered published articles on this technique
Moderate deviation principle for multiscale systems driven by fractional Brownian motion
Creators: name: Bourguin, Solesne
name: Dang, Thanh
name: Spiliopoulos, Konstantinos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we study the moderate deviations principle (MDP) for slow-fast stochastic dynamical systems where the slow motion is governed by small fractional Brownian motion (fBm) with Hurst parameter $H\in(1/2,1)$. We derive conditions on the moderate deviations scaling and on the Hurst parameter $H$ under which the MDP holds. In addition, we show that in typical situations the resulting action functional is discontinuous in $H$ at $H=1/2$, suggesting that the tail behavior of stochastic dynamical systems perturbed by fBm can have different characteristics than the tail behavior of such systems that are perturbed by standard Brownian motion.
Nontrivial Deformation of a Trivial Bundle
Creators: name: Hajac, Piotr M.
name: Zieliński, Bartosz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: The ${\rm SU}(2)$-prolongation of the Hopf fibration $S^3\to S^2$ is a trivializable principal ${\rm SU}(2)$-bundle. We present a noncommutative deformation of this bundle to a quantum principal ${\rm SU}_q(2)$-bundle that is not trivializable. On the other hand, we show that the ${\rm SU}_q(2)$-bundle is piecewise trivializable with respect to the closed covering of $S^2$ by two hemispheres intersecting at the equator.
description: The present paper has been extracted from an earlier version of arXiv:1101.0201, so that there are some overlaps in introductory parts and standard definitions
The Response of Dark Matter Haloes to Gas Ejection: CuspCore II
Creators: name: Li, Zhaozhou
name: Dekel, Avishai
name: Mandelker, Nir
name: Freundlich, Jonathan
name: François, Thibaut
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose an analytic model, CuspCore II, for the response of dark matter (DM) haloes to central gas ejection, as a mechanism for generating DM-deficient cores in dwarfs and high-z massive galaxies. We test this model and three other methods using idealized N-body simulations. The current model is physically justified and provides more accurate predictions than the earlier version, CuspCore I (Freundlich et al. 2020). The CuspCore model assumes an instantaneous change of potential, followed by a relaxation to a new Jeans equilibrium. The relaxation turns out to be violent relaxation during the first orbital period, followed by phase mixing. By tracing the energy diffusion dE=dU(r) iteratively, the model reproduces the simulated DM profiles with ~10% accuracy or better. A method based on adiabatic invariants shows similar precision for moderate mass change but underestimates the DM expansion for strong gas ejection. A method based on a simple empirical relation between DM and total mass ratios makes slightly inferior predictions. The crude assumption used in CuspCore I, of energy conservation for shells that encompass a fixed DM mass, turns out to underestimate the DM response, which can be partially remedied by introducing an alternative "energy" definition. Our model is being generalized to address the differential response of a multi-component system of stars and DM in the formation of DM-deficient galaxies.
description: 20 pages, 15 figures, accepted version
Correlating sparse sensing for large-scale traffic speed estimation: A Laplacian-enhanced low-rank tensor kriging approach
Creators: name: Nie, Tong
name: Qin, Guoyang
name: Wang, Yunpeng
name: Sun, Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Traffic speed is central to characterizing the fluidity of the road network. Many transportation applications rely on it, such as real-time navigation, dynamic route planning, and congestion management. Rapid advances in sensing and communication techniques make traffic speed detection easier than ever. However, due to sparse deployment of static sensors or low penetration of mobile sensors, speeds detected are incomplete and far from network-wide use. In addition, sensors are prone to error or missing data due to various kinds of reasons, speeds from these sensors can become highly noisy. These drawbacks call for effective techniques to recover credible estimates from the incomplete data. In this work, we first identify the issue as a spatiotemporal kriging problem and propose a Laplacian enhanced low-rank tensor completion (LETC) framework featuring both lowrankness and multi-dimensional correlations for large-scale traffic speed kriging under limited observations. To be specific, three types of speed correlation including temporal continuity, temporal periodicity, and spatial proximity are carefully chosen and simultaneously modeled by three different forms of graph Laplacian, named temporal graph Fourier transform, generalized temporal consistency regularization, and diffusion graph regularization. We then design an efficient solution algorithm via several effective numeric techniques to scale up the proposed model to network-wide kriging. By performing experiments on two public million-level traffic speed datasets, we finally draw the conclusion and find our proposed LETC achieves the state-of-the-art kriging performance even under low observation rates, while at the same time saving more than half computing time compared with baseline methods. Some insights into spatiotemporal traffic data modeling and kriging at the network level are provided as well.
Ramanujan's radial limits and mixed mock modular bilateral $q$-hypergeometric series
Creators: name: Mortenson, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B65, 11F27

description: Using results from Ramanujan's lost notebook, Zudilin recently gave an insightful proof of a radial limit result of Folsom, Ono, and Rhoades for mock theta functions. Here we see that the author's previous work on the dual nature of Appell--Lerch sums and partial theta functions and on constructing bilateral $q$-series with mixed mock modular behaviour is well-suited for such radial limits. We present five more radial limit results which follow from mixed mock modular bilateral $q$-hypergeometric series. We also obtain the mixed mock modular bilateral series for a universal mock theta function of Gordon and McIntosh. The later bilateral series can be used to compute radial limits for many classical second, sixth, eight, and tenth order mock theta functions.
description: To be published in the Proceedings of the Edinburgh Mathematical Society
Learning entanglement breakdown as a phase transition by confusion
Creators: name: Gavreev, M. A.
name: Mastiukova, A. S.
name: Kiktenko, E. O.
name: Fedorov, A. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum technologies require methods for preparing and manipulating entangled multiparticle states. However, the problem of determining whether a given quantum state is entangled or separable is known to be an NP-hard problem in general, and even the task of detecting entanglement breakdown for a given class of quantum states is difficult. In this work, we develop an approach for revealing entanglement breakdown using a machine learning technique, which is known as 'learning by confusion'. We consider a family of quantum states, which is parameterized such that there is a single critical value dividing states within this family into separate and entangled. We demonstrate the 'learning by confusion' scheme allows us to determine the critical value. Specifically, we study the performance of the method for the two-qubit, two-qutrit, and two-ququart entangled state. In addition, we investigate the properties of the local depolarization and the generalized amplitude damping channel in the framework of the confusion scheme. Within our approach and setting the parameterization of special trajectories, we obtain an entanglement-breakdown 'phase diagram' of a quantum channel, which indicates regions of entangled (separable) states and the entanglement-breakdown region. Then we extend the way of using the 'learning by confusion' scheme for recognizing whether an arbitrary given state is entangled or separable. We show that the developed method provides correct answers for a variety of states, including entangled states with positive partial transpose. We also present a more practical version of the method, which is suitable for studying entanglement breakdown in noisy intermediate-scale quantum devices. We demonstrate its performance using an available cloud-based IBM quantum processor.
description: 14 pages, 9 figures, 4 tables
Group actions and Monotone Quantum Metric Tensors
Creators: name: Ciaglia, Florio M.
name: Di Nocera, Fabio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The interplay between actions of Lie groups and monotone quantum metric tensors on the space of faithful quantum states of a finite-level system observed recently in DOI: 10.1140/epjp/s13360-020-00537-y and DOI: 10.1007/978-3-030-80209-7_17 is here further developed.