cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gaussian processes and effective field theory of $f(T)$ gravity under the $H_0$ tension
Creators: name: Ren, Xin
name: Yan, Sheng-Feng
name: Zhao, Yaqi
name: Cai, Yi-Fu
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the effective field theory formulation of torsional gravity in a cosmological framework to alter the background evolution. Then we use the latest $H_0$ measurement from the SH0ES Team as well as observational Hubble data from cosmic chronometer (CC) and radial baryon acoustic oscillations (BAO) and we reconstruct the $f(T)$ form in a model-independent way by applying Gaussian processes. Since the special square-root term does not affect the evolution at the background level, we finally summarize a family of functions that can produce the background evolution required by the data. Lastly, performing a fitting using polynomial functions, and implementing the Bayesian Information Criterion (BIC), we find an analytic expression that may describe the cosmological evolution in great agreement with observations.
description: 10 pages, 6 figures
Melonic phase transition in group field theory
Creators: name: Baratin, Aristide
name: Carrozza, Sylvain
name: Oriti, Daniele
name: Ryan, James P.
name: Smerlak, Matteo
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: Group field theories have recently been shown to admit a 1/N expansion dominated by so-called `melonic graphs', dual to triangulated spheres. In this note, we deepen the analysis of this melonic sector. We obtain a combinatorial formula for the melonic amplitudes in terms of a graph polynomial related to a higher dimensional generalization of the Kirchhoff tree-matrix theorem. Simple bounds on these amplitudes show the existence of a phase transition driven by melonic interaction processes. We restrict our study to the Boulatov-Ooguri models, which describe topological BF theories and are the basis for the construction of four dimensional models of quantum gravity.
description: 8 pages, 4 figures; to appear in Letters in Mathematical Physics
title: Bebenhausen, 1407-1409: Der Glockenturm der Klosterkirche. Ein Schmuckstück spätgotischer Zierarchitektur im europäischen Kontext
Creators: name: Michler, Jürgen
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 26, Nr. 3 (1997), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Bottom Quark Mass with Calibrated Uncertainty
Creators: name: Erler, Jens
name: Masjuan, Pere
name: Spiesberger, Hubert
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the bottom quark mass $\hat{m}_b$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD to ${\cal O} (\hatα_s^3)$. Our approach is based on the mutual consistency across a set of moments where experimental data are required for the resonance contributions only. Additional experimental information from the continuum region can then be used for stability tests and to assess the theoretical uncertainty. We find $\hat{m}_b(\hat{m}_b) = (4180.2 \pm 7.9)$ MeV for $\hatα_s(M_Z) = 0.1182$.
description: 20 pages, 7 figures
title: Staufener Schloßberg. Sicherung eines historischen Weinbergs
Creators: name: Roth, Erik
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 1 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Linear Precoding Based on Polynomial Expansion: Large-Scale Multi-Cell MIMO Systems
Creators: name: Kammoun, Abla
name: Müller, Axel
name: Björnson, Emil
name: Debbah, Mérouane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Large-scale MIMO systems can yield a substantial improvement in spectral efficiency for future communication systems. Due to the finer spatial resolution achieved by a huge number of antennas at the base stations, these systems have shown to be robust to inter-user interference and the use of linear precoding is asymptotically optimal. However, most precoding schemes exhibit high computational complexity as the system dimensions increase. For example, the near-optimal RZF requires the inversion of a large matrix. This motivated our companion paper, where we proposed to solve the issue in single-cell multi-user systems by approximating the matrix inverse by a truncated polynomial expansion (TPE), where the polynomial coefficients are optimized to maximize the system performance. We have shown that the proposed TPE precoding with a small number of coefficients reaches almost the performance of RZF but never exceeds it. In a realistic multi-cell scenario involving large-scale multi-user MIMO systems, the optimization of RZF precoding has thus far not been feasible. This is mainly attributed to the high complexity of the scenario and the non-linear impact of the necessary regularizing parameters. On the other hand, the scalar weights in TPE precoding give hope for possible throughput optimization. Following the same methodology as in the companion paper, we exploit random matrix theory to derive a deterministic expression for the asymptotic SINR for each user. We also provide an optimization algorithm to approximate the weights that maximize the network-wide weighted max-min fairness. The optimization weights can be used to mimic the user throughput distribution of RZF precoding. Using simulations, we compare the network throughput of the TPE precoding with that of the suboptimal RZF scheme and show that our scheme can achieve higher throughput using a TPE order of only 3.
Highly-efficient third-harmonic generation from ultrapure diamond crystals
Creators: name: Abulikemu, Aizitiaili
name: Hase, Muneaki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report on a direct generation of efficient and wavelength-tunable third-harmonic generation (THG) from ultrapure electronic-grade (EG) diamond crystals. Under an ultrafast infrared excitation at 1280 nm, the considerably high optical conversion efficiency of ~ 0.7% at a THG wavelength of 427 nm is obtained, and the THG signal can be tuned over ultra-broadband range from 420 to 730 nm. We argue that the THG efficiency is originating from minimum absorption loss and phase-matching conditions in EG diamond. Enhanced THG from EG diamond crystal represents a new paradigm for establishing efficient diamond-based frequency converters, quantum sensing, and quantum communications platforms.
description: 8 pages, 4 figures
Hidden Starbursts and Active Galactic Nuclei at 0
Creators: name: Lemaux, Brian C.
name: Floc'h, Emeric Le
name: Fèvre, Olivier Le
name: Ilbert, Olivier
name: Tresse, Laurence
name: Lubin, Lori M.
name: Zamorani, Giovanni
name: Gal, Roy R.
name: Ciliegi, Paolo
name: Cassata, Paolo
name: Kocevski, Dale D.
name: McGrath, Elizabeth J.
name: Bardelli, Sandro
name: Zucca, Elena
name: Squires, Gordon K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate of the properties of $\sim$2000 Herschel/SPIRE-selected galaxies from $00.5$), the highest $L_{TIR}$ galaxies in a given redshift bin are unobserved by SPIRE at subsequently lower redshifts, a trend linked to downsizing. In conjunction with other results, this evidence is used to argue for prevalent AGN-driven quenching in starburst galaxies across cosmic time.
description: 39 pages, 19 figures, 6 tables, accepted to A&A. Updated version contains minor revisions and corrects a typo made in equation 5. All data used in the paper is now available online through CDS
title: Erhaltende Sanierung. Ein Bericht über die Sanierung des Instituts für Biophysik und Strahlenbiologie der Universität Freiburg
Creators: name: Olbricht, Heinz
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 1 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Quantum corrections to the quasinormal modes of the Schwarzschild black hole
Creators: name: Chen, Hao
name: Hassanabadi, Hassan
name: Lütfüoğlu, Bekir Can
name: Long, Zheng-Wen
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Based on the minimum measurable momentum concepts associated with the quantum gravity effects acting on the large-scale dynamics of the universe, we study the quantum effect of the EUP on the Hawking evaporation of the black hole. The results show the quantum corrections may shorten the lifetime of the massive black hole. To verify the new EUP on the black hole stability, the scalar field and electromagnetic field are derived and the time evolution of the black hole is analyzed in terms of the time domain integration method, the quantum effect alters the oscillation and decay time of black hole. Furthermore, we use the WKB numerical approximation method to calculate the quasinormal mode frequencies and analyze the influence of the EUP parameter $α$ on the scattering problem. This shows that the EUP significantly increases the area of the total absorption cross-section of the black hole.
description: 10 pages, 9 figures
title: Ausstellungen ; Abbildungsnachweis
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 1 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
On small energy stabilization in the NLS with a trapping potential
Creators: name: Cuccagna, Scipio
name: Maeda, Masaya
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We describe the asymptotic behavior of small energy solutions of an NLS with a trapping potential. In particular we generalize work of Soffer and Weinstein, and of Tsai et. al. The novelty is that we allow generic spectra associated to the potential. This is yet a new application of the idea to interpret the nonlinear Fermi Golden Rule as a consequence of the Hamiltonian structure.
description: Revised version
title: Die Rahmenplanungen zum Gewerbepark Neckartal. Die ehemalige Pulverfabrik bei Rottweil
Creators: name: Laule, Bernhard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 2 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
On the well-posedness of relativistic viscous fluids
Creators: name: Disconzi, Marcelo M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83C05, 35L77, 35Q35

description: Using a simple and well-motivated modification of the stress-energy tensor for a viscous fluid proposed by Lichnerowicz, we prove that Einstein's equations coupled to a relativistic version of the Navier-Stokes equations are well-posed in a suitable Gevrey class if the fluid is incompressible and irrotational. These last two conditions are given an appropriate relativistic interpretation. The solutions enjoy the domain of dependence or finite propagation speed property. We also derive a full set of equations, describing a relativistic fluid that is not necessarily incompressible or irrotational, which is well-suited for comparisons with the system of an inviscid fluid.
title: Der Schlachthof Konstanz wird Bibliothek der Fachhochschule
Creators: name: Leusch, Frank T.
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 2 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
The Log-Volume of Optimal Codes for Memoryless Channels, Asymptotically Within A Few Nats
Creators: name: Moulin, Pierre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Shannon's analysis of the fundamental capacity limits for memoryless communication channels has been refined over time. In this paper, the maximum volume $M_\avg^*(n,ε)$ of length-$n$ codes subject to an average decoding error probability $ε$ is shown to satisfy the following tight asymptotic lower and upper bounds as $n \to \infty$: \[ \underline{A}_ε+ o(1) \le \log M_\avg^*(n,ε) - [nC - \sqrt{nV_ε} \,Q^{-1}(ε) + \frac{1}{2} \log n] \le \overline{A}_ε+ o(1) \] where $C$ is the Shannon capacity, $V_ε$ the $ε$-channel dispersion, or second-order coding rate, $Q$ the tail probability of the normal distribution, and the constants $\underline{A}_ε$ and $\overline{A}_ε$ are explicitly identified. This expression holds under mild regularity assumptions on the channel, including nonsingularity. The gap $\overline{A}_ε- \underline{A}_ε$ is one nat for weakly symmetric channels in the Cover-Thomas sense, and typically a few nats for other symmetric channels, for the binary symmetric channel, and for the $Z$ channel. The derivation is based on strong large-deviations analysis and refined central limit asymptotics. A random coding scheme that achieves the lower bound is presented. The codewords are drawn from a capacity-achieving input distribution modified by an $O(1/\sqrt{n})$ correction term.
description: 75 pages, 8 figures. This is the final version to appear in the IEEE Transactions on Information Theory, 2017
eV Hubble Scale Inflation with Radiative Plateau: Very light Inflaton, Reheating & Dark Matter in B-L Extensions
Creators: name: Ghoshal, Anish
name: Okada, Nobuchika
name: Paul, Arnab
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study radiative plateau-like inflation \& Z$_{BL}$-portal freeze-in fermionic dark matter (DM) in a minimal B-L extended model. The U(1)$_{B-L}$ Higgs, responsible for heavy neutrino masses, also drives inflation in the early universe, thanks to radiative corrections from the heavy neutrinos \& the Z$_{BL}$ gauge boson. In our benchmark choice for the U(1)$_{B-L}$ gauge coupling $g_{B-L}\sim10^{-4}$, a light Z$_{BL}$ boson can be explored by current and future lifetime frontier experiments, such as FASER and FASER 2 at the LHC, SHiP, Belle II and LHCb. For the benchmark, the Hubble scale of inflation ($\mathcal{H}_{inf}$) is very low ($\mathcal{H}_{inf} = \mathcal{O}(100)$ eV) \& the inflaton turns out to be very light with mass of $\mathcal{O}(1)$ eV, and consequently the decay width of inflaton is extremely small. We investigate a 2-field system with the inflaton/B-L Higgs and the Standard Model (SM) Higgs, and find that the reheating with a suffuciently high temperature occurs when the water-fall direction to the SM Higgs direction opens up in the trajectory of the scalar field evolution.
description: 19 pages, 5 figures, This version is accepted in PRD
title: Dieter Hasler, Karl-Heinz Glaser (Hrsg.): Steine, Hitze, Hungerkünstler - Gochsheim und seine Trockenmauern. 64 S., 60 teilweise farbige Abbildungen, 5 Pläne. Ubstadt-Weiner 1997: Verlag Regionalkultur. ISBN 3-929366-62-2
Creators: name: Freyer, Konrad
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 2 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Dienststellen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 2 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Quantum Shuffles and Quantum Supergroups of Basic Type
Creators: name: Clark, Sean
name: Hill, David
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We initiate the study of several distinguished bases for the positive half of a quantum supergroup $U_q$ associated to a general super Cartan datum $(\mathrm{I}, (\cdot,\cdot))$ of basic type inside a quantum shuffle superalgebra. The combinatorics of words for an arbitrary total ordering on $\mathrm{I}$ is developed in connection with the root system associated to $\mathrm{I}$. The monomial, Lyndon, and PBW bases of $U_q$ are constructed, and moreover, a direct proof of the orthogonality of the PBW basis is provided within the framework of quantum shuffles. Consequently, the canonical basis is constructed for $U_q$ associated to the standard super Cartan datum of type $\mathfrak{gl}(n|1)$, $\mathfrak{osp}(1|2n)$, or $\mathfrak{osp}(2|2n)$ or an arbitrary non-super Cartan datum. In the non-super case, this refines Leclerc's work and provides a new self-contained construction of canonical bases. The canonical bases of $U_q$, of its polynomial modules, as well as of Kac modules in the case of quantum $\mathfrak{gl}(2|1)$ are explicitly worked out.
description: 50 pages, v2 added Lemmas 4.3 and 4.4, improved the proof of Lemma 4.5, added Theorem 5.5; v3 final version, to appear in Quantum Topology
On multiplicity bounds for Schrodinger eigenvalues on Riemannian surfaces
Creators: name: Kokarev, Gerasim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: A classical result by Cheng in 1976, improved later by Besson and Nadirashvili, says that the multiplicities of the eigenvalues of the Schrodinger operator with a smooth potential on a compact Riemannian surface M are bounded in terms of the eigenvalue index and the genus of M. We prove that these multiplicity bounds hold for an L^p-potential, where p>1. We also discuss similar multiplicity bounds for Laplace eigenvalues on singular Riemannian surfaces.
description: 22 pages, revised version, minor stylistic corrections made, misprints corrected, to appear in Analysis & PDE
The effect of resonant magnetic perturbations on the divertor heat and particle fluxes in MAST
Creators: name: Thornton, A. J.
name: Kirk, A.
name: Cahyna, P.
name: Chapman, I. T.
name: Harrison, J. R.
name: Liu, Yueqiang
name: Team, MAST
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Edge localised modes (ELMs) are a concern for future devices, such as ITER, due to the large transient heat loads they generate on the divertor surfaces which could limit the operational time of the device. This paper discusses the application of resonant magnetic perturbations (RMPs) as a mechanism for ELM control on MAST. Experiments have been performed using an n=3 toroidal mode number perturbation and measurements of the strike point splitting performed. The measurements have been made using both infrared and visible imaging to measure the heat and particle flux to the divertor. The measured profiles have shown clear splitting in L-mode which compares well with the predication of the splitting location from modelling including the effect of screening. The splitting of the strike point has also been studied as a function of time during the ELM. The splitting varies during the ELM, being the strongest at the time of the peak heat flux and becoming more filamentary at the end of the ELM (200 microseconds after the peak midplane D(alpha) emission). Variation in the splitting profiles has also been seen, with some ELMs showing clear splitting and others no splitting. A possible explanation of this effect is proposed, and supported by modelling, which concerns the relative phase between the RMP field and the ELM filament location.
description: 26 pages, 26 figures. Presented at the Stochasticity in Fusion Plasmas Workshop, Aachen, March 2013
Multivariate distributions with fixed marginals and correlations
Creators: name: Huber, Mark
name: Maric, Nevena
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Computation (stat.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Consider the problem of drawing random variates $(X_1,\ldots,X_n)$ from a distribution where the marginal of each $X_i$ is specified, as well as the correlation between every pair $X_i$ and $X_j$. For given marginals, the Fréchet-Hoeffding bounds put a lower and upper bound on the correlation between $X_i$ and $X_j$. Any achievable correlation between $X_i$ and $X_j$ is a convex combinations of these bounds. The value $λ(X_i,X_j) \in [0,1]$ of this convex combination is called here the convexity parameter of $(X_i,X_j),$ with $λ(X_i,X_j) = 1$ corresponding to the upper bound and maximal correlation. For given marginal distributions functions $F_1,\ldots,F_n$ of $(X_1,\ldots,X_n)$ we show that $λ(X_i,X_j) = λ_{ij}$ if and only if there exist symmetric Bernoulli random variables $(B_1,\ldots,B_n)$ (that is $\{0,1\}$ random variables with mean 1/2) such that $λ(B_i,B_j) = λ_{ij}$. In addition, we characterize completely the set of convexity parameters for symmetric Bernoulli marginals in two, three and four dimensions.
description: Compared to the journal version, here Lemma 4 and Theorem 3, for case n=4, are slightly corrected
Manipulating synthetic gauge fluxes via multicolor dressing of Rydberg-atom arrays
Creators: name: Wu, Xiaoling
name: Yang, Fan
name: Yang, Shuo
name: Mølmer, Klaus
name: Pohl, Thomas
name: Tey, Meng Khoon
name: You, Li
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Arrays of highly excited Rydberg atoms can be used as powerful quantum simulation platforms. Here, we introduce an approach that makes it possible to implement fully controllable effective spin interactions in such systems. We show that optical Rydberg dressing with multicolor laser fields opens up distinct interaction channels that enable complete site-selective control of the induced interactions and favorable scaling with respect to decoherence. We apply this method to generate synthetic gauge fields for Rydberg excitations where the effective magnetic flux can be manipulated at the single-plaquette level by simply varying the phase of the local dressing field. The system can be mapped to a highly anisotropic Heisenberg model, and the resulting spin interaction opens the door for explorations of topological phenomena with nonlocal density interactions. A remarkable consequence of the interaction is the emergence of topologically protected long-range doublons, which exhibit strongly correlated motion in a chiral and robust manner.
description: 8+11 pages, 5+7 figures
title: Das Thema „Umnutzung von Baudenkmälern" im historischen Kontext
Creators: name: Michler, Jürgen
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 3 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Combining thermal resummation and gauge invariance for electroweak phase transition
Creators: name: Schicho, Philipp
name: Tenkanen, Tuomas V. I.
name: White, Graham
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For computing thermodynamics of the electroweak phase transition, we discuss a minimal approach that reconciles both gauge invariance and thermal resummation. Such a minimal setup consists of a two-loop dimensional reduction to three-dimensional effective theory, a one-loop computation of the effective potential and its expansion around the leading-order minima within the effective theory. This approach is tractable and provides formulae for resummation that are arguably no more complicated than those that appear in standard techniques ubiquitous in the literature. In particular, we implement renormalisation group improvement related to the hard thermal scale. Despite its generic nature, we present this approach for the complex singlet extension of the Standard Model which has interesting prospects for high energy collider phenomenology and dark matter predictions. The presented expressions can be used in future studies of phase transition thermodynamics and gravitational wave production.
description: 38 pages, 5 figures, no gauge dependence
Do Small Code Changes Merge Faster? A Multi-Language Empirical Investigation
Creators: name: Kudrjavets, Gunnar
name: Nagappan, Nachiappan
name: Rastogi, Ayushi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Code velocity, or the speed with which code changes are integrated into a production environment, plays a crucial role in Continuous Integration and Continuous Deployment. Many studies report factors influencing code velocity. However, solutions to increase code velocity are unclear. Meanwhile, the industry continues to issue guidelines on "ideal" code change size, believing it increases code velocity despite lacking evidence validating the practice. Surprisingly, this fundamental question has not been studied to date. This study investigates the practicality of improving code velocity by optimizing pull request size and composition (ratio of insertions, deletions, and modifications). We start with a hypothesis that a moderate correlation exists between pull request size and time-to-merge. We selected 100 most popular, actively developed projects from 10 programming languages on GitHub. We analyzed our dataset of 845,316 pull requests by size, composition, and context to explore its relationship to time-to-merge - a proxy to measure code velocity. Our study shows that pull request size and composition do not relate to time-to-merge. Regardless of the contextual factors that can influence pull request size or composition (e.g., programming language), the observation holds. Pull request data from two other platforms: Gerrit and Phabricator (401,790 code reviews) confirms the lack of relationship. This negative result as in "... eliminate useless hypotheses ..." challenges a widespread belief by showing that small code changes do not merge faster to increase code velocity.
description: 12 pages. To be published in Proceedings of MSR '22: Proceedings of the 19th International Conference on Mining Software Repositories (MSR 2022). ACM, New York, NY, USA
Non-modal linear stability of the Schwarzschild black hole
Creators: name: Dotti, Gustavo
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A proof is given that the space $Ł$ of solutions of the linearized vacuum Einstein's equation around a Schwarzschild black hole is parameterized by two scalar fields which are gauge invariant combinations of perturbed algebraic and differential invariants of the Weyl tensor, and encode the information on the odd (-) and even (+) sectors $Ł_{\pm}$ These fields measure the distortion of the geometry caused by a generic perturbation, and are shown to be pointwise bounded on the outer region $r \geq 2M$.
description: Inclusion of \ell=0,1 modes. Changes in the treatment of even perturbations
Mining Code Review Data to Understand Waiting Times Between Acceptance and Merging: An Empirical Analysis
Creators: name: Kudrjavets, Gunnar
name: Kumar, Aditya
name: Nagappan, Nachiappan
name: Rastogi, Ayushi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Increasing code velocity (or the speed with which code changes are reviewed and merged) is integral to speeding up development and contributes to the work satisfaction of engineers. While factors affecting code change acceptance have been investigated in the past, solutions to decrease the code review lifetime are less understood. This study investigates the code review process to quantify delays and investigate opportunities to potentially increase code velocity. We study the temporal characteristics of half a million code reviews hosted on Gerrit and Phabricator, starting from the first response, to a decision to accept or reject the changes, and until the changes are merged into a target branch. We identified two types of time delays: (a) the wait time from the proposal of code changes until first response, and (b) the wait time between acceptance and merging. Our study indicates that reducing the time between acceptance and merging has the potential to speed up Phabricator code reviews by 29-63%. Small code changes and changes made by authors with a large number of previously accepted code reviews have a higher chance of being immediately accepted, without code review iterations. Our analysis suggests that switching from manual to automatic merges can help increase code velocity.
description: 12 pages. To be published in Proceedings of MSR '22: Proceedings of the 19th International Conference on Mining Software Repositories (MSR 2022). ACM, New York, NY, USA
title: Die ehemalige katholische Kirche in Angelbachtal-Eichtersheim und andere Kirchenumnutzungen im Rhein-Neckar-Kreis
Creators: name: Laun, Rainer
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 3 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Training and Projecting: A Reduced Basis Method Emulator for Many-Body Physics
Creators: name: Bonilla, Edgard
name: Giuliani, Pablo
name: Godbey, Kyle
name: Lee, Dean
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Computation (stat.CO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present the reduced basis method as a tool for developing emulators for equations with tunable parameters within the context of the nuclear many-body problem. The method uses a basis expansion informed by a set of solutions for a few values of the model parameters and then projects the equations over a well-chosen low-dimensional subspace. We connect some of the results in the eigenvector continuation literature to the formalism of reduced basis methods and show how these methods can be applied to a broad set of problems. As we illustrate, the possible success of the formalism on such problems can be diagnosed beforehand by a principal component analysis. We apply the reduced basis method to the one-dimensional Gross-Pitaevskii equation with a harmonic trapping potential and to nuclear density functional theory for $^{48}$Ca, achieving speed-ups of more than x150 in both cases when compared to traditional solvers. The outstanding performance of the approach, together with its straightforward implementation, show promise for its application to the emulation of computationally demanding calculations, including uncertainty quantification.
Regularity theory for nonlinear systems of SPDEs
Creators: name: Breit, Dominic
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R60, 35D30, 60H15, 35K55, 35B65

description: We consider systems of stochastic evolutionary equations of the type $$du=\mathrm{div}\,S(\nabla u)\,dt+Φ(u)dW_t$$ where $S$ is a non-linear operator, for instance the $p$-Laplacian $$S(ξ)=(1+|ξ|)^{p-2}ξ,\quad ξ\in\mathbb R^{d\times D},$$ with $p\in(1,\infty)$ and $Φ$ grows linearly. We extend known results about the deterministic problem to the stochastic situation. First we verify the natural regularity: $$\mathbb E\bigg[\sup_{t\in(0,T)}\int_{G'}|\nabla u(t)|^2\,dx+\int_0^T\int_{G'}|\nabla F(\nabla u)|^2\,dx\,dt\bigg]
title: Der alte Stadtbahnhof in Baden-Baden
Creators: name: Ohr, Karl-Friedrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 3 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Time Reversal Invariant Topologically Insulating Circuits
Creators: name: Jia, Ningyuan
name: Owens, Clai
name: Sommer, Ariel
name: Schuster, David
name: Simon, Jonathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: From studies of exotic quantum many-body phenomena to applications in spintronics and quantum information processing, topological materials are poised to revolutionize the condensed matter frontier and the landscape of modern materials science. Accordingly, there is a broad effort to realize topologically non-trivial electronic and photonic materials for fundamental science as well as practical applications. In this work, we demonstrate the first simultaneous site- and time- resolved measurements of a time reversal invariant topological band-structure, which we realize in a radio frequency (RF) photonic circuit. We control band-structure topology via local permutation of a traveling wave capacitor-inductor network, increasing robustness by going beyond the tight-binding limit. We observe a gapped density of states consistent with a modified Hofstadter spectrum at a flux per plaquette of $ϕ=π/2$. In-situ probes of the band-gaps reveal spatially-localized bulk-states and de-localized edge-states. Time-resolved measurements reveal dynamical separation of localized edge-excitations into spin-polarized currents. The RF circuit paradigm is naturally compatible with non-local coupling schemes, allowing us to implement a Möbius strip topology inaccessible in conventional systems. This room-temperature experiment illuminates the origins of topology in band-structure, and when combined with circuit quantum electrodynamics (QED) techniques, provides a direct path to topologically-ordered quantum matter.
description: 15 pages, 4 figures & 6 supplementary figures
Absence of Walker breakdown in the dynamics of chiral Neel domain walls driven by in-plane strain gradients
Creators: name: Fattouhi, Mouad
name: Garcia-Sanchez, Felipe
name: Yanes, Rocio
name: Raposo, Victor
name: Martinez, Eduardo
name: Lopez-Diaz, Luis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate theoretically the motion of chiral Néel domain walls in perpendicularly magnetized systems driven by in-plane strain gradients. We show that such strain drives domain walls efficiently towards increasing tensile (compressive) strain for positive (negative) magnetostrictive materials. During their motion a local damping torque that opposes the precessional torque due to the strain gradient arises. This torque prevents the onset of turbulent dynamics, and steady domain wall motion with constant velocity is asymptotically reached for any arbitrary large strain gradient. Withal, velocities in the range of 500 m/s can be obtained using voltage-induced strain under realistic conditions.
ICDAR 2023 Video Text Reading Competition for Dense and Small Text
Creators: name: Wu, Weijia
name: Zhao, Yuzhong
name: Li, Zhuang
name: Li, Jiahong
name: Shou, Mike Zheng
name: Pal, Umapada
name: Karatzas, Dimosthenis
name: Bai, Xiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recently, video text detection, tracking, and recognition in natural scenes are becoming very popular in the computer vision community. However, most existing algorithms and benchmarks focus on common text cases (e.g., normal size, density) and single scenarios, while ignoring extreme video text challenges, i.e., dense and small text in various scenarios. In this competition report, we establish a video text reading benchmark, DSText, which focuses on dense and small text reading challenges in the video with various scenarios. Compared with the previous datasets, the proposed dataset mainly include three new challenges: 1) Dense video texts, a new challenge for video text spotter. 2) High-proportioned small texts. 3) Various new scenarios, e.g., Game, sports, etc. The proposed DSText includes 100 video clips from 12 open scenarios, supporting two tasks (i.e., video text tracking (Task 1) and end-to-end video text spotting (Task 2)). During the competition period (opened on 15th February 2023 and closed on 20th March 2023), a total of 24 teams participated in the three proposed tasks with around 30 valid submissions, respectively. In this article, we describe detailed statistical information of the dataset, tasks, evaluation protocols and the results summaries of the ICDAR 2023 on DSText competition. Moreover, we hope the benchmark will promise video text research in the community.
d_{xy}-Density wave in fermion-fermion cold atom mixtures
Creators: name: Lai, Chen-Yen
name: Huang, Wen-Min
name: Campbell, David K.
name: Tsai, Shan-Wen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study density wave instabilities in a doubly-degenerate Fermi-Fermi mixture with $SU(2)\times SU(2)$ symmetry on a square lattice. For sufficiently large on-site inter-species repulsion, when the two species of fermions are both at half-filling, two conventional ($s$-wave) number density waves are formed with a $π$-phase difference between them to minimize the inter-species repulsion. Upon moving one species away from half-filling, an unconventional density wave with $d_{xy}$-wave symmetry emerges. When both species are away from the vicinity of half-filling, superconducting instabilities dominate. We present results of a functional renormalization-group calculation that maps out the phase diagram at weak couplings. Also, we provide a simple explanation for the emergence of the $d_{xy}$-density wave phase based on a four-patch model. We find a robust and general mechanism for $d_{xy}$-density-wave formation that is related to the shape and size of the Fermi surfaces. The density imbalance between the two species of fermions in the vicinity of half-filling leads to phase-space discrepancy for different inter-species Umklapp couplings. Using a phase space argument for leading corrections in the one-loop renormalization group approach to fermions, we show that the phase-space discrepancy in our system causes opposite flows for the two leading intra-species Umklapp couplings and that this triggers the $d_{xy}$-density-wave instability.
description: revised long version; 8 pages, 7 figures
title: Nur ist es eine ganz andere Else als ich gedichtet hatte
Creators: name: Lejsek, Susanne
Year: 2023

description: Diese Untersuchung beschäftigt sich mit den verändernden Auswirkungen auf die Figurendarstellung und die Sympathielenkung in Bezug auf die Protagonistin von Arthur Schnitzlers gleichnamiger Novelle „Fräulein Else“ in sogenannten ‚Adaptionen von Adaptionen‘. Diese Mehrfachadaptionen sind dadurch spezifiziert, dass sie nicht auf Schnitzlers ursprüngliche Monologerzählung, sondern auf eine Adaption des Prätextes referenzieren. Zunächst wird Manuele Fiors Graphic Novel „Fräulein Else“ in ihren beiden deutschen Ausgaben 2010 und 2017 analysiert, wobei die spätere Ausgabe mit mehreren paratextuellen Ergänzungen und insbesondere mit einem deutlich sexualisierten Portrait der Protagonistin auf dem Buchcover als intramediale Adaption der vorherigen Ausgabe zu qualifizieren ist. Als weiteres Beispiel einer nun intermedialen Adaption der Adaption dient das multimediale Bühnen-Remake „Czinner: Fräulein Else“, das aus der kabarettistischen Live-Synchronisierung durch das Autorenduo „Maschek“ und der konzertanten Vertonung durch die „Musicbanda Franui“ des Stummfilms „Fräulein Else“ von Paul Czinner besteht. Mit den jeweils mediengerechten Instrumenten der Figurenanalyse von Fotis Jannidis, Jens Eder und Jakob F. Dittmar und gemäß den Ansätzen der medialen Emotionalisierungsforschung von Kathrin Fehlberg, Henrike Hahn und Scott McCloud wird festgestellt, dass sich die Protagonistin in jeder Adaption von der ursprünglichen literarischen Figur, dem „Fräulein Else“ in Schnitzlers Prätext deutlich und mitunter markant unterscheidet. Die Veränderungen zeigen sich dabei in mengenmäßig und qualitativ unterschiedlicher Ausprägung, betreffen aber immer sowohl das figurale Erscheinungsbild und die der Figur zugeschriebenen Charakter¬eigenschaften als auch das Emotionalisierungspotential und die Sympathieausstrahlung. Dennoch lassen sich in jedem einzelnen adaptierten „Fräulein Else“ nach wie vor Figureninformationen der ursprünglichen Frauengestalt Schnitzlers wiederfinden. Insbesondere das Stummfilmremake ist bislang wissenschaftlich unerforscht, zur auktorialen Interpretation des Werkes und auch zur Absicherung der Forschungsergebnisse dient ein authentisches Interview mit den adaptierenden Autoren Peter Hörmanseder und Robert Stachel („Maschek“).
title: Verschwörungstheorien & Populismus
Creators: name: Lackner, Nathalie
Year: 2023

description: Diese Arbeit beschäftigt sich mit dem Thema Verschwörungstheorien & Populismus in Zeiten der Corona-Pandemie. Anhand einer Analyse der Online-Kommunikation der Freiheitlichen Partei Österreichs (FPÖ) wurde untersucht, inwiefern die Verbreitung von Verschwörungstheorien im Bezug auf Covid-19 durch die rechtspopulistische Partei unterstützt wurde. Nach einer ausführlichen Literaturrecherche wurde eine quantitative empirische Forschung in Form einer Inhaltsanalyse durchgeführt. Analysiert wurden veröffentlichte Beiträge der FPÖ auf den Social Media Plattformen Facebook und Youtube. Die Analyse zeigte, dass die beiden Merkmale „Anti-Elitism“ und „People-Centrism“, mit hochsignifikanten Ergebnissen, in einer überwiegenden Zahl der Postings der Freiheitlichen Partei erkennbar waren und mit der Variable „Verschwörungstheorien“ korrelierten. Auch die Verwendung von rhetorischen Fragen konnte teilweise festgestellt werden. Insgesamt waren Verschwörungstheorien in den Online-Inhalten der FPÖ jedoch nur in einem geringen Ausmaß konkret erkennbar (in etwa 13 Prozent der Fälle). Die Verschwörungstheorie „The Great Reset“ fand dabei am meisten Anklang, gefolgt von der Theorie „Impfgegnerschaft“. Die Beiträge waren überwiegend emotional formuliert und mehr als die Hälfte der Postings beinhaltete Aussagen, die Ängste bekräftigen könnten.
Why are the effective equations of loop quantum cosmology so accurate?
Creators: name: Rovelli, Carlo
name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We point out that the relative Heisenberg uncertainty relations vanish for non-compact spaces in homogeneous loop quantum cosmology. As a consequence, for sharply peaked states quantum fluctuations in the scale factor never become important, even near the bounce point. This shows why quantum back-reaction effects remain negligible and explains the surprising accuracy of the effective equations in describing the dynamics of sharply peaked wave packets. This also underlines the fact that minisuperspace models ---where it is global variables that are quantized--- do not capture the local quantum fluctuations of the geometry.
description: 6 pages, v2: Clarifications and references added
Cluster categories for marked surfaces: punctured case
Creators: name: Qiu, Yu
name: Zhou, Yu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 16G20, 18E30, 16E30, 57M50 (primary), 16G70 (secondary)

description: We study the cluster categories arising from marked surfaces (with punctures and non-empty boundaries). By constructing skewed-gentle algebras, we show that there is a bijection between tagged curves and string objects. Applications include interpreting dimensions of $\operatorname{Ext}^1$ as intersection numbers of tagged curves and Auslander-Reiten translation as tagged rotation. An important consequence is that the cluster(-tilting) exchange graphs of such cluster categories are connected.
description: Final version, to appear in Compositio Mathematica
title: Ursprüngliche Kelter wird Festhalle. Farrenstall, Meierhof 13, in Denkendorf
Creators: name: Weyrauch, Sabine
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 3 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Kelter in Beuren wird Festsaal
Creators: name: Weyrauch, Sabine
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 3 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Deformations of log-symplectic structures
Creators: name: Marcut, Ioan
name: Torres, Boris Osorno
Publisher: name: arXiv
Year: 2013
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We describe the space of Poisson bivectors near a log-symplectic structure up to small diffeomorphisms.
description: 16 pages, Journal of the London Mathematical Society 2014
title: Editorial
Creators: name: Biel, Jörg
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 4 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Acute physiological responses of blood flow restriction during recovery in high-intensity interval training in trained cyclists
Creators: name: Pugh, Charles
name: Paton, Carl
name: Ferguson, Richard
name: Driller, Matthew
name: Beaven, Christopher Martyn
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4207
subject: Sports science and exercise

description: No description supplied
title: Montanarchäologische Forschungen im Südschwarzwald
Creators: name: Goldenberg, Gert
name: Steuer, Heiko
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 4 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
The 42 reducts of the random ordered graph
Creators: name: Bodirsky, Manuel
name: Pinsker, Michael
name: Pongrácz, András
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The random ordered graph is the up to isomorphism unique countable homogeneous linearly ordered graph that embeds all finite linearly ordered graphs. We determine the reducts of the random ordered graph up to first-order interdefinability.
description: 42 pages (!)