cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
What does FAIR mean to you?
Creators: name: Hooft, R.W.W.
Publisher: name: Zenodo
Year: 2022
Subjects: Data Stewardship
Data Stewardship Wizard
FAIR

description: Presentation given as a webinar for the Nutrigenomics association. The FAIR principles are often seen as an obligation that funding organisations place on research, to satisfy their wish that the data that is collected on their money provides the most societal value. In this webinar we will turn this burden into a benefit by using FAIR to guide data management decisions from the start of the project. We will argue that this can save a lot more time than it costs, and strongly reduces time needed to publish the data at the end of a project. We will show the first steps any project can take towards more FAIR data, and introduce the Data Stewardship Wizard as a tool to explore more options. There will also be ample time for questions and discussion. What does FAIR mean to you?
Structural Control of Metamaterial Oscillator Strength and Electric Field Enhancement at Terahertz Frequencies
Creators: name: Keiser, George R.
name: Seren, Huseyin R.
name: Strikwerda, Andrew C.
name: Zhang, Xin
name: Averitt, Richard D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The design of artificial nonlinear materials requires control over the internal resonant charge densities and local electric field distributions. We present a MM design with a structurally controllable oscillator strength and local electric field enhancement at terahertz frequencies. The MM consists of a split ring resonator (SRR) array stacked above an array of nonresonant closed conducting rings. An in-plane, lateral shift of a half unit cell between the SRR and closed ring arrays results in a decrease of the MM oscillator strength by a factor of 4 and a 40% change in the amplitude of the resonant electric field enhancement in the SRR capacitive gap. We use terahertz time-domain spectroscopy and numerical simulations to confirm our results and we propose a qualitative inductive coupling model to explain the observed electromagnetic reponse.
description: 11 pages, 5 figures
Scattering amplitudes in N=2 Maxwell-Einstein and Yang-Mills/Einstein supergravity
Creators: name: Chiodaroli, Marco
name: Gunaydin, Murat
name: Johansson, Henrik
name: Roiban, Radu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We expose a double-copy structure in the scattering amplitudes of the generic Jordan family of N=2 Maxwell-Einstein and Yang-Mills/Einstein supergravity theories in four and five dimensions. The Maxwell-Einstein supergravity amplitudes are obtained through the color/kinematics duality as a product of two gauge-theory factors; one originating from pure N=2 super-Yang-Mills theory and the other from the dimensional reduction of a bosonic higher-dimensional pure Yang-Mills theory. We identify a specific symplectic frame in four dimensions for which the on-shell fields and amplitudes from the double-copy construction can be identified with the ones obtained from the supergravity Lagrangian and Feynman-rule computations. The Yang-Mills/Einstein supergravity theories are obtained by gauging a compact subgroup of the isometry group of their Maxwell-Einstein counterparts. For the generic Jordan family this process is identified with the introduction of cubic scalar couplings on the bosonic gauge-theory side, which through the double copy are responsible for the non-abelian vector interactions in the supergravity theory. As a demonstration of the power of this structure, we present explicit computations at tree-level and one loop. The double-copy construction allows us to obtain compact expressions for the supergravity superamplitudes which are naturally organized as polynomials in the gauge coupling constant.
description: 60 pages, 2 figures, PDFLaTex, version published on JHEP
SUPPLEMENTARY: DIFFUSION-BASED COMPRESSION QUALITY TRADEOFFS WITHOUT RETRAINING
Publisher: name: IEEE Signal Processing Society
Year: 2025

description: Learned image compression methods using a generative decoder can reconstruct images at significantly higher perceptual quality than new hand-crafted codecs or other learned methods. Recently, diffusion models have been integrated into the decoding process to further enhance image quality.
However, the diffusion process is sensitive to several hyper-parameters, such as the number of steps, which are typically hard-coded and expected to perform well across various images. When applied to a single image, these parameters are often suboptimal.
In this work, we propose enhancing reconstruction quality by optimizing the diffusion process's decoding parameters for each image individually during encoding. This approach improves final quality with virtually no increase in bits-per-pixel. Additionally, we compare methods to minimize the additional computational impact during encoding.
We validate our approach on the CDC (Yang et al., 2024) and PerCo (Careil et al., 2023) image compression models using datasets like Kodak and DIV2K. Our results show clear improvements in LPIPS and PSNR without negatively impacting bits-per-pixel. This concept of optimizing quality tradeoffs can be readily applied to other diffusion-based image compression methods without the necessity of additional network training.
Phase diagram of the symbiotic two-species contact process
Creators: name: de Oliveira, Marcelo M.
name: Dickman, Ronald
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study the two-species symbiotic contact process (2SCP), recently proposed in [de Oliveira, Santos and Dickman, Phys. Rev. E {\bf 86}, 011121 (2012)] . In this model, each site of a lattice may be vacant or host single individuals of species A and/or B. Individuals at sites with both species present interact in a symbiotic manner, having a reduced death rate, $μ< 1$. Otherwise, the dynamics follows the rules of the basic CP, with individuals reproducing to vacant neighbor sites at rate $λ$ and dying at a rate of unity. We determine the full phase diagram in the $λ-μ$ plane in one and two dimensions by means of exact numerical quasistationary distributions, cluster approximations, and Monte Carlo simulations. We also study the effects of asymmetric creation rates and diffusion of individuals. In two dimensions, for sufficiently strong symbiosis (i.e., small $μ$), the absorbing-state phase transition becomes discontinuous for diffusion rates $D$ within a certain range. We report preliminary results on the critical surface and tricritical line in the $λ-μ-D$ space. Our results raise the possibility that strongly symbiotic associations of mobile species may be vulnerable to sudden extinction under increasingly adverse conditions.
description: to appear in Physical Review E
Acceleration of matrix element computations for precision measurements
Creators: name: Brandt, Oleg
name: Gutierrez, Gaston
name: Wang, Michael H. L. S.
name: Ye, Zhenyu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The matrix element technique provides a superior statistical sensitivity for precision measurements of important parameters at hadron colliders, such as the mass of the top quark or the cross section for the production of Higgs bosons. The main practical limitation of the technique is its high computational demand. Using the concrete example of the top quark mass, we present two approaches to reduce the computation time of the technique by a factor of 90. First, we utilize low-discrepancy sequences for numerical Monte Carlo integration in conjunction with a dedicated estimator of numerical uncertainty, a novelty in the context of the matrix element technique. Second, we utilize a new approach that factorizes the overall jet energy scale from the matrix element computation, a novelty in the context of top quark mass measurements. The utilization of low-discrepancy sequences is of particular general interest, as it is universally applicable to Monte Carlo integration, and independent of the computing environment.
description: submitted to Nuclear Instruments and Methods in Physics Research A
Geometric phases of water waves
Creators: name: Fedele, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Recently, Banner et al. (2014) highlighted a new fundamental property of open ocean wave groups, the so-called crest slowdown. For linear narrowband waves, this is related to the geometric and dynamical phase velocities $U_d$ and $U_g$ associated with the parallel transport through the principal fiber bundle of the wave motion with $\mathit{U}(1)$ symmetry. The theoretical predictions are shown to be in fair agreement with ocean field observations, from which the average crest speed $c=U_d+U_g$ with $c/U_d\approx0.8$ and $U_{g}/U_d\approx-0.2$.
Gaussian and Airy wave packets of massive particles with orbital angular momentum
Creators: name: Karlovets, Dmitry V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While wave-packet solutions for relativistic wave equations are oftentimes thought to be approximate (paraxial), we demonstrate that there is a family of such solutions, which are exact, by employing a null-plane (light-cone) variables formalism. A scalar Gaussian wave-packet in transverse plane is generalized so that it acquires a well-defined z-component of the orbital angular momentum (OAM), while may not acquire a typical "doughnut" spatial profile. Such quantum states and beams, in contrast to the Bessel ones, may have an azimuthal-angle-dependent probability density and finite quantum uncertainty of the OAM, which is determined by the packet's width. We construct a well-normalized Airy wave-packet, which can be interpreted as a one-particle state for relativistic massive boson, show that its center moves along the same quasi-classical straight path and, what is more important, spreads with time and distance exactly as a Gaussian wave-packet does, in accordance with the uncertainty principle. It is explained that this fact does not contradict the well-known "non-spreading" feature of the Airy beams. While the effective OAM for such states is zero, its quantum uncertainty (or the beam's OAM bandwidth) is found to be finite, and it depends on the packet's parameters. A link between exact solutions for the Klein-Gordon equation in the null-plane-variables formalism and the approximate ones in the usual approach is indicated, generalizations of these states for a boson in external field of a plane electromagnetic wave are also presented.
description: 16 pages, 4 figures; some additional comments have been added
Blue-Cloud at European Research and Innovation Days 2022
Creators: name: Pittonet, Sara
Publisher: name: Zenodo
Year: 2022
Subjects: Blue-Cloud, Green Deal, Digital Twin

description: Sara Pittonet, Trust-IT Services & Blue-Cloud Project Coordinator, joined the session ‘Mission Restore our Ocean and Waters: Synergies and next steps’ on 29 September 16:00-16.45.  This session addressed how to connect and align other EU and national programmes with the Mission to achieve its ambitious 2030 objectives. This session highlighted potential synergies to deliver with impact on this EU Missions, through Horizon Europe and other programmes: CEF, EMFF, H2020, Interreg, LIFE. Discussion centred on the synergies among R&I portfolios funded under different EU programmes and how they can be linked up to the three objectives of the Mission “Restore our Ocean and Waters” to take stock of what has been already put in place and what more can be done to fill potential gaps. Speakers represented different EU programmes highly relevant to this EU Mission. Blue-Cloud, the flagship initiative of the "Future of the Seas and Oceans" programme of the EC, set up an ambitious Synergies programme that managed to achieve, in a relatively limited period of time, outstanding impacts in terms of adoption and exploitation of Blue-Cloud Open Science platform and services by different communities. From the Blue-Cloud Virtual Labs, to the pilot applications developed by the Blue-Cloud Hackathon early careers, from Horizon2020 and Interreg intiatives to the ambitious Digital Twin of the Oceans programme: this slidedeck gives an overview of Blue-Cloud cross-programmes contribution to the Mission Restore our Ocean and Waters.
Supplementary document for Backward multiplex coherent anti-Stokes Raman (CARS) spectroscopic imaging with electron-multiplying CCD (EM-CCD) camera - 6533546.pdf
Creators: name: MURAKAMI, YUSUKE
name: Yoshimura, Minami
name: Klement, W.J.
name: Oda, Atsuki
name: Sakamoto, Ryo
name: Yakabe, Miho
name: Matsumoto, Atsushi
name: Oketani, Ryosuke
name: Leproux, Philippe
name: Ikenouchi, Junichi
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Fig. S1, S2
Thubana albiprata Wu 1994
Creators: name: Yu, Shuai
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Thubana
Thubana albiprata

description: Thubana albiprata Wu, 1994: 130.
TL: China (Sichuan). TD: IZCAS.
Distribution. China (Sichuan).
description: Published as part of Yu, Shuai & Wang, Shuxia, 2025, New species and new records of the genus Thubana Walker (Lepidoptera: Lecithoceridae) from China, with a checklist of the genus in the country, pp. 81-97 in European Journal of Taxonomy 987 on page 94, DOI: 10.5852/ejt.2025.987.2861, http://zenodo.org/record/15196489
Experimental research on the feature of an X-ray Talbot-Lau interferometer vs. tube accelerating voltage
Creators: name: Wang, Shenghao
name: Hu, Renfang
name: Wang, Zhili
name: Gao, Kun
name: Zhang, Kai
name: Momose, Atsushi
name: Wu, Ziyu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: X-ray Talbot-Lau interferometer has been used most widely to perform X-ray phase-contrast imaging with a conventional low-brilliance X-ray source, it yields high-sensitivity phase and dark-field images of sample producing low absorption contrast, thus bearing tremendous potential for future clinical diagnosis. In this manuscript, while changing accelerating voltage of the X-ray tube from 35KV to 45KV, X-ray phase-contrast imaging of a test sample were performed at each integer KV position to investigate the characteristic of an X-ray Talbot-Lau interferometer (located in the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan) vs. tube voltage. Experimental results and data analysis show that this X-ray Talbot-Lau interferometer is insensitive to the tube accelerating voltage within a certain range, fringe visibility around 44% is maintained in the aforementioned tube voltage range. This experimental research implies that potential new dual energy phase-contrast X-ray imaging strategy and rough refraction spectrum measurement is feasible with this X-ray Talbot-Lau interferometer.
description: 9 pages, 7 figures.(English improved and discussion part revised)
The DARIAH ELDAH consent form wizard
Creators: name: Hannesschläger, Vanessa
name: Kuzman Šlogar, Koraljka
name: Scholger, Walter
Publisher: name: Zenodo
Year: 2020
Subjects: Consent Forms
Legal Consent
Legal Issues
Data Privacy
GDPR

description: In this poster, we would like to introduce the “consent form wizard” developed by the DARIAH-EU working group “Ethics and Legality in Digital Arts and Humanities” (ELDAH).
 This tool is currently under development and will be finalized and available in time for the DARIAH annual meeting. It will enable digital scholars as well as the wider research infrastructure community to quickly and easily obtain a standardized consent form that is conforming to the obligations and regulations of the European Union General Data Protection regulation (GDPR) and therefore legally valid in all of the European Union.
Moderating strain hardening rate to produce high ductility and high strength in a medium carbon TRIP steel
Creators: name: Dong, X. X.
name: Shen, Y. F.
name: Zhu, Y. T.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: High strain hardening rate is usually pursued for high ductility. Here we report that moderate strain hardening rate is desired for producing better ductility and high yield strength, which is demonstrated in a medium carbon TRIP steel. By adjusting the temperature for bainitic transformation, the morphology, carbon content and residue stress of retained austenite were tuned to tailor the TRIP kinetics during tensile tests, which produced moderated but long-lasting strain hardening for high ductility while at the same time resulted in high yield strength. This strategy should work well for most materials, which usually have a limited ultimate strength. A principle is proposed and verified that an optimized moderate strain hardening rate is desired to produce the best mechanical properties for metallic materials.
title: Diffraction-optimized aperiodic surface structures for enhanced current density in organic solar cells
Creators: name: Merkel, Melina
name: Imbrock, Jörg
name: Denz, Cornelia
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 530 Physics

description: Novel diffractive surface structures are designed, evaluated, and optimized to achieve a significant increase in current density in organic solar cells. The surface relief phase gratings are patterned based on concentric rings, a Fermat’s spiral, and an Archimedean spiral, respectively, and thus diffract incident light independent of its azimuthal angle, as they all exhibit circularly symmetric diffraction patterns. The grating pillars are arranged on the rings or spirals according to periodic or deterministic aperiodic Thue-Morse and Rudin-Shapiro sequences, tailoring the desired diffraction patterns. After evaluating the surface patterns against each other and further parameter optimization, a final current density enhancement of 5 % is achieved for one of the most promising patterns, the Thue-Morse sequence on an Archimedean spiral.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Visualisation materials and tools available for MR1 development
Creators: name: Adalbjornsson, Steinar B.
name: Dagsson, Thormodur
Publisher: name: Zenodo
Year: 2018
Subjects: Case Study
Common Fishery Policy
Decision Support Network
Fisheries Partnership Agreement
Joint Scientific Committee
Framework Programme for Research and Development
Horizon 2020
Maximum Sustainable Yield
International Fishing Waters
High Seas
Visualisations

description: Visualization materials, and other tools, that can assist operators and other stakeholders in developing Management Plan Recommendations (MPRs), are an important part of each case study in the FarFish project, as well as for the outcome of the project. The visualization tools will give information on important biological, ecological, economic and social issues that can be relevant for the MPR1 development and give information on potential effects of MPR1 implementation (what if? scenarios). For the project to be successful, as with any project of relevance, it is of utter importance to make sure that complex issues and concepts are broken down for additional understanding. This will lay the path for increased stakeholder involvement and will provide additional tools so that the co-creation is successful. It is said that “picture is worth a thousand words”. It is important to remember that sometimes visualization is the only way for successful dissemination of results. The visualization materials and other tools that will be available for the MPR1 development are likely to be "imperfect" given the timing, but will nevertheless provide important input to developing an applicable MPR alternative. The tools are likely to consist mainly of static maps and charts, as well as simple GIS. In this deliverable we list the possible visualization materials that are and can be available within the FarFish project. Both ideas and concrete examples will be listed on the use of visualisation tools for enhanced understanding and better use of the data created within the project.
description: This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement no. 727891.
The Signature of Single-Degenerate Accretion Induced Collapse
Creators: name: Piro, Anthony L.
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The accretion induced collapse (AIC) of a white dwarf to a neutron star has long been suggested as a natural theoretical outcome in stellar evolution, but there has never been a direct detection of such an event. This is not surprising since the small amount of radioactive nickel synthesized ($\sim10^{-3}\,M_\odot$) implies a relatively dim optical transient. Here we argue that a particularly strong signature of an AIC would occur for an oxygen-neon-magnesium (ONeMg) white dwarf accreting from a star that is experiencing Roche-lobe overflow as it becomes a red giant. In such cases, the $\sim10^{50}\,{\rm erg}$ explosion from the AIC collides with and shock-heats the surface of the extended companion, creating an X-ray flash lasting $\sim1\,{\rm hr}$ followed by an optical signature that peaks at an absolute magnitude of $\sim -16$ to $-18$ and lasts for a few days to a week. These events would be especially striking in old stellar environments where hydrogen-rich supernova-like, transients would not normally be expected. Although the rate of such events is not currently known, we describe observing strategies that could be utilized with high cadence surveys that should either detect these events or place strong constraints on their rates.
description: Revised version accepted for publication in The Astrophysical Journal, 5 pages, 2 figures
Azimuthal velocity profiles in Rayleigh-stable Taylor-Couette flow and implied axial angular momentum transport
Creators: name: Nordsiek, Freja
name: Huisman, Sander G.
name: van der Veen, Roeland C. A.
name: Sun, Chao
name: Lohse, Detlef
name: Lathrop, Daniel P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present azimuthal velocity profiles measured in a Taylor-Couette apparatus, which has been used as a model of stellar and planetary accretion disks. The apparatus has a cylinder radius ratio of $η= 0.716$, an aspect-ratio of $Γ= 11.74$, and the plates closing the cylinders in the axial direction are attached to the outer cylinder. We investigate angular momentum transport and Ekman pumping in the Rayleigh-stable regime. The regime is linearly stable and is characterized by radially increasing specific angular momentum. We present several Rayleigh-stable profiles for shear Reynolds numbers $Re_S \sim O(10^5) \,$, both for $Ω_i > Ω_o > 0$ (quasi-Keplerian regime) and $Ω_o > Ω_i > 0$ (sub-rotating regime) where $Ω_{i,o}$ is the inner/outer cylinder rotation rate. None of the velocity profiles matches the non-vortical laminar Taylor-Couette profile. The deviation from that profile increased as solid-body rotation is approached at fixed $Re_S$. Flow super-rotation, an angular velocity greater than that of both cylinders, is observed in the sub-rotating regime. The velocity profiles give lower bounds for the torques required to rotate the inner cylinder that were larger than the torques for the case of laminar Taylor-Couette flow. The quasi-Keplerian profiles are composed of a well mixed inner region, having approximately constant angular momentum, connected to an outer region in solid-body rotation with the outer cylinder and attached axial boundaries. These regions suggest that the angular momentum is transported axially to the axial boundaries. Therefore, Taylor-Couette flow with closing plates attached to the outer cylinder is an imperfect model for accretion disk flows, especially with regard to their stability.
description: 22 pages, 10 figures, 2 tables, under consideration for publication in Journal of Fluid Mechanics (JFM)
Strong bulk spin–orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2
Creators: name: Martin, Franziska
name: Lee, Kyujoon
name: Schmitt, Maurice
name: Liedtke, Anna
name: Shahee, Aga
name: Simensen, Haakon Thømt
name: Scholz, Tanja
name: Saunderson, Tom G.
name: Go, Dongwook
name: Gradhand, Martin
name: Mokrousov, Yuriy
name: Denneulin, Thibaud
name: Kovács, András
name: Lotsch, Bettina
name: Brataas, Arne
name: Kläui, Mathias
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plasma Physics

description: The recent emergence of magnetic van der Waals materials allows for the investigation of current-induced magnetisation manipulation in two-dimensional materials. Uniquely, Fe3GeTe2 has a crystalline structure that allows for the presence of bulk spin–orbit torques (SOTs) that we quantify in a Fe3GeTe2 flake. From the symmetry of the measured torques, we identify current induced effective fields using harmonic analysis and find dominant bulk SOTs arising from the symmetry in the crystal structure. Our results show that Fe3GeTe2 can exhibit bulk SOTs in addition to the conventional interfacial SOTs enabling magnetisation manipulation even in thick flakes without the need for complex multilayer engineering. Spin–orbit torques which demonstrates efficient magnetisation switching requires multilayer structures. In FeGe3Te2 van der Waals materials we demonstrate bulk spin–orbit torques in a sole material with possibilities for spintronics applications.
Suppressing dislocations in normalized hypercubic smearing
Creators: name: DeGrand, Thomas
name: Shamir, Yigal
name: Svetitsky, Benjamin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Normalized hypercubic smearing improves the behavior of dynamical Wilson-clover fermions, but has the unwanted side effect that it can occasionally produce spikes in the fermion force. These spikes originate in the chain rule connecting the derivative with respect to the smeared links to the derivative with respect to the dynamical links, and are associated with the presence of dislocations in the dynamical gauge field. We propose and study an action designed to suppress these dislocations. We present evidence for improved performance of the hybrid Monte Carlo algorithm. A side benefit is improvement in the properties of valence chiral fermions.
description: Revtex, 10 pages, 2 figures
Diffusion of interacting particles in discrete geometries: equilibrium and dynamical properties
Creators: name: Becker, T.
name: Nelissen, K.
name: Cleuren, B.
name: Partoens, B.
name: Broeck, C. Van den
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We expand on a recent study of a lattice model of interacting particles [Phys. Rev. Lett. 111, 110601 (2013)]. The adsorption isotherm and equilibrium fluctuations in particle number are discussed as a function of the interaction. Their behavior is similar to that of interacting particles in porous materials. Different expressions for the particle jump rates are derived from transition state theory. Which expression should be used depends on the strength of the inter-particle interactions. Analytical expressions for the self- and transport diffusion are derived when correlations, caused by memory effects in the environment, are neglected. The diffusive behavior is studied numerically with kinetic Monte Carlo (kMC) simulations, which reproduces the diffusion including correlations. The effect of correlations is studied by comparing the analytical expressions with the kMC simulations. It is found that the Maxwell-Stefan diffusion can exceed the self-diffusion. To our knowledge, this is the first time this is observed. The diffusive behavior in one-dimensional and higher dimensional systems is qualitatively the same, with the effect of correlations decreasing for increasing dimension. The length dependence of both the self- and transport diffusion is studied for one-dimensional systems. For long lengths the self-diffusion shows a one over length dependence. Finally, we discuss when agreement with experiments and simulations can be expected. The assumption that particles in different cavities do not interact is expected to hold quantitatively at low and medium particle concentrations, if the particles are not strongly interacting.
description: (18 pages, 16 figures, published version)
title: Brief von Michael Steiner an Kurt Rothschild
Creators: name: Steiner, Michael
Year: 2017

description: Mit Beilage (6 Blätter): Inhaltsverzeichnis "Nachdenken über Politik - jenseits des Alltags und diesseits der Utopie".
description: Typoskript mit Unterschrift, 5 Blätter, 8 Seiten
Fe2C- and Mn2(W/Mo)B4-based rare-earth-free permanent magnets as a result of the high-throughput and data-mining search
Creators: name: Vishina, Alena
name: Eriksson, O.
name: Herper, H. C.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: A high-throughput and data-mining search for rare-earth-free permanent magnets is reported for materials containing a 3d and p-element of the Periodic Table. Three of the most promising compounds, Fe2C, Mn2MoB4, and Mn2WB4, were investigated in detail by ab initio electronic structure theory coupled to atomistic spin-dynamics. For these systems doping protocols were also investigated and, in particular, (Fe0.75X0.25)2C (X = Mn, Cr, V, and Ti), Mn2XB4 (X = Mo and W) along with Mn2(X0.5Y0.5)B4 (X,Y = Mo, W, Ta, Cr) are suggested here as promising candidates for applications as permanent magnets. Several promising high-performance rare-earth-free permanent magnets have been found as a result of an ab initio high-throughput search. Alteration proposed to improve their stability and magnetic properties.
On D-brane moduli stabilisation
Creators: name: Marchesano, Fernando
name: Regalado, Diego
name: Zoccarato, Gianluca
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Standard results in 4d N=1 string compactifications assign a number of moduli to each space-time filling D-brane, computed by analysing the D-brane action in a fixed background. We revisit such conventional wisdom and argue that this naive counting of open string moduli is incorrect, in the sense that some of them will be lifted when making dynamical the bulk degrees of freedom. We explicitly discuss this effect for D6-branes wrapping special Lagrangian three-cycles, showing that some geometric and Wilson line moduli are lifted even before taking into account worldsheet instanton effects. From a 4d effective theory viewpoint the moduli lifting is due to an F-term potential, and can be deduced from the superpotentials in the literature. From a microscopic viewpoint the lifting is due to D-brane backreaction effects and flux quantisation in a compact manifold, and provides a mechanism for lifting Wilson line moduli. The latter applies to certain D6-branes and D7-brane Wilson lines, yielding new possibilities to build models of inflation in string theory.
description: 29 pages, typos corrected and references added
On the superconductivity of graphite interfaces
Creators: name: Esquinazi, Pablo
name: Heikkilä, Tero T.
name: Lysogorskiy, Yury V.
name: Tayurskii, Dmitrii A.
name: Volovik, Grigory E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose an explanation for the appearance of superconductivity at the interfaces of graphite with Bernal stacking order. A network of line defects with flat bands appears at the interfaces between two slightly twisted graphite structures. Due to the flat band the probability to find high temperature superconductivity at these quasi one-dimensional corridors is strongly enhanced. When the network of superconducting lines is dense it becomes effectively two-dimensional. The model provides an explanation for several reports on the observation of superconductivity up to room temperature in different oriented graphite samples, graphite powders as well as graphite-composite samples published in the past.
description: 4 pages, two figures, JETP Letters (September 2014, in press)
Hawking-Page transition in holographic massive gravity
Creators: name: Adams, Allan
name: Roberts, Daniel A.
name: Saremi, Omid
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Hawking-Page transition in a holographic model of field theories with momentum dissipation. We find that the deconfinement temperature strictly decreases as momentum dissipation is increased. For sufficiently strong momentum dissipation, the critical temperature goes to zero, indicating a zero-temperature deconfinement transition in the dual field theory.
description: 17 pages, 1 figure, uncomment \newcommand*{\ShowCalculations}{} in the tex file for additional details. Journal version (PRD). Presentation clarified, reference added, and line spacing and title updated
Diseño y validación de un test de evaluación del potencial en emprendimiento social ppt
Creators: name: Portuguez Castro, May
Publisher: name: Zenodo
Year: 2018
Subjects: emprendimiento social

description: Portuguez Castro, M., Valenzuela González, J.R. & Navarro Corona, C. (2018). Diseño y validación de un test de evaluación del potencial en emprendimiento social. Revista de Estudios Cooperativos Revesco 1 28, 192 211. DOI:https://doi.org/10.5209/REVE. 60207
Cooperation of different exchange mechanisms in confined magnetic systems
Creators: name: Schwabe, Andrej
name: Hänsel, Mirek
name: Potthoff, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The diluted Kondo lattice model is investigated at strong antiferromagnetic local exchange couplings J, where almost local Kondo clouds drastically restrict the motion of conduction electrons, giving rise to the possibility of quantum localization of conduction electrons for certain geometries of impurity spins. This localization may lead to the formation of local magnetic moments in the conduction-electron system, and the inverse indirect magnetic exchange (IIME), provided by virtual excitations of the Kondo singlets, couples those local moments to the remaining electrons. Exemplarily, we study the one-dimensional two-impurity Kondo model with impurity spins near the chain ends, which supports the formation of conduction-electron magnetic moments at the edges of the chain for sufficiently strong J. Employing degenerate perturbation theory as well as analyzing spin gaps numerically by means of the density-matrix renormalization group, it is shown that the low-energy physics of the model can be well captured within an effective antiferromagnetic RKKY-like two-spin model ("RKKY from IIME") or within an effective central-spin model, depending on edge-spin distance and system size.
description: 7 pages, 3 figures, v2 with minor corrections
Revista Saída 03 colapso do capital e contemporaneidade
Creators: name: Canarim, Guilherme Orestes
Publisher: name: Zenodo
Year: 2022

description: Editorial Um fantasma ronda o mundo, na beira da ponta de nossas línguas ele habita incólume, é o fantasma da indignação. Solapar a sociedade — contemporânea, baseada na administração da pobreza humana que a si trouxe um agouro de morte colapsando-se por meio do seu modus operandi, urge hoje mais que nunca, em razão disso toda esta edição esta disposta.
Coupling approach for the realization of a $\mathcal{PT}$-symmetric potential for a Bose-Einstein condensate in a double well
Creators: name: Single, Fabian
name: Cartarius, Holger
name: Wunner, Günter
name: Main, Jörg
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show how non-Hermitian potentials used to describe probability gain and loss in effective theories of open quantum systems can be achieved by a coupling of the system to an environment. We do this by coupling a Bose-Einstein condensate (BEC) trapped in an attractive double-delta potential to a condensate fraction outside the double well. We investigate which requirements have to be imposed on possible environments with a linear coupling to the system. This information is used to determine an environment required for stationary states of the BEC. To investigate the stability of the system we use fully numerical simulations of the dynamics. It turns out that the approach is viable and possible setups for the realization of a $\mathcal{PT}$-symmetric potential for a BEC are accessible. Vulnerabilities of the whole system to small perturbations can be adhered to the singular character of the simplified delta-shaped potential used in our model.
description: 9 pages, 6 figures, minor changes in the text, correction of two references
Locality of the Aharonov-Bohm-Casher effect
Creators: name: Kang, Kicheon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We address the question of the locality versus nonlocality in the Aharonov-Bohm and the Aharonov-Casher effects. For this purpose, we investigate all possible configurations of ideal shielding of the overlap between the electromagnetic fields generated by a charge and by a magnetic flux, and analyze their consequences on the Aharonov-Bohm-Casher interference. In a classical treatment of shielding, the Aharonov-Bohm-Casher effect vanishes regardless of the geometry of shielding, when the local overlap of electromagnetic fields is completely eliminated. On the other hand, the result depends on the configuration of shielding if the charge quantization in the superconducting shield is taken into account. It is shown that our results are fully understood in terms of the fluctuating local-field interaction. Our analysis strongly supports the alternative view on the Aharonov-Bohm-Casher interference that the effects originate from the local action of electromagnetic fields.
description: 7 pages, 3 figures
Parafermion stabilizer codes
Creators: name: Güngördü, Utkan
name: Nepal, Rabindra
name: Kovalev, Alexey A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We define and study parafermion stabilizer codes which can be viewed as generalizations of Kitaev's one dimensional model of unpaired Majorana fermions. Parafermion stabilizer codes can protect against low-weight errors acting on a small subset of parafermion modes in analogy to qudit stabilizer codes. Examples of several smallest parafermion stabilizer codes are given. A locality preserving embedding of qudit operators into parafermion operators is established which allows one to map known qudit stabilizer codes to parafermion codes. We also present a local 2D parafermion construction that combines topological protection of Kitaev's toric code with additional protection relying on parity conservation.
EFTCAMB/EFTCosmoMC: massive neutrinos in dark cosmologies
Creators: name: Hu, Bin
name: Raveri, Marco
name: Silvestri, Alessandra
name: Frusciante, Noemi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the degeneracy between massive neutrinos and generalized theories of gravity in the framework of effective field theory of cosmic acceleration. In particular we consider f(R) theories and a class of non-minimally coupled models parametrized via a coupling to gravity which is linear in the scale factor. In the former case, we find a slightly lower degeneracy with respect to what found so far in the literature, due to the fact that we implement exact designer f(R) models and evolve the full linear dynamics of perturbations. As a consequence, our bounds are slightly tighter on the f(R) parameter but looser on the summed neutrino mass. We also set a new upper bound on the Compton wavelength parameter ${\rm Log}_{10}B_0
description: 9 pages, 3 figures. Typing error fixed in a plot. The EFTCAMB/EFTCosmoMC codes are available at: http://wwwhome.lorentz.leidenuniv.nl/~hu/codes/
Concordance and discordance in the phylogenomics of the wrasses and parrotfishes (Teleostei: Labridae)
Creators: name: Hughes, Lily C.
name: Nash, Chloe M.
name: White, William T.
name: Westneat, Mark W.
Publisher: name: Zenodo
Year: 2022
Subjects: incomplete lineage sorting
exon capture
divergence time estimation
Fossil calibration

description: Phylogenomic analysis of large genome-wide sequence data sets can resolve phylogenetic tree topologies for large species groups, help test the accuracy of and improve resolution for earlier multilocus studies, and reveal the level of agreement or concordance within partitions of the genome for various tree topologies. Here we used a target-capture approach to sequence more than 1,000 single-copy exons for more than 200 labrid fishes together with more than 100 outgroup taxa to generate a new data-rich phylogeny for the family Labridae. Our time-calibrated phylogenetic analysis of exon-capture data pushes the root node age of the family Labridae back into the Cretaceous to about 79 Ma years ago. The monotypic Centrogenys vaigiensis, and the order Uranoscopiformes (stargazers) are identified as the sister lineages of Labridae. The phylogenetic relationships among major labrid subfamilies and within these clades was largely congruent with prior analyses of select mitochondrial and nuclear datasets. However, the position of the tribe Cirrhilabrini (fairy and flame wrasses) showed discordance, resolving either as the sister to a crown julidine clade or alternatively sister to a group formed by the labrines, cheilines and scarines. Exploration of this pattern using multiple approaches leads to slightly higher support for this latter hypothesis, highlighting the importance of genome-level data sets for resolving short internodes at key phylogenetic positions in large, economically important groups of coral reef fishes.
description: See ReadMe.docx for an explanation of Supplemental Tables, Figures, and Appendices.Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: DEB 1541547
The double attractor behavior of induced inflation
Creators: name: Kallosh, Renata
name: Linde, Andrei
name: Roest, Diederik
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe an induced inflation, which refers to a class of inflationary models with a generalized non-minimal coupling $ξg(ϕ) R$ and a specific scalar potential. The defining property of these models is that the scalar field takes a vev in the vacuum and thus induces an effective Planck mass. We study this model as a function of the coupling parameter $ξ$. At large $ξ$, the predictions of the theory are known to have an attractor behavior, converging to a universal result independent on the choice of the function $g(ϕ)$. We find that at small $ξ$, the theory approaches a second attractor. The inflationary predictions of this class of theories continuously interpolate between those of the Starobinsky model and the predictions of the simplest chaotic inflation with a quadratic potential.
description: 5 pages, 2 figures; v2: refs added, accepted by JHEP
Lambda-Lambda interaction from relativistic heavy-ion collisions
Creators: name: Morita, Kenji
name: Furumoto, Takenori
name: Ohnishi, Akira
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate the two-particle intensity correlation function of $Λ$ in relativistic heavy-ion collisions. We find that the behavior of the $ΛΛ$ correlation function at small relative momenta is fairly sensitive to the interaction potential and collective flows. By comparing the results of different source functions and potentials, we explore the effect of intrinsic collective motions on the correlation function. We find that the recent STAR data gives a strong constraint on the scattering length and effective range of $ΛΛ$ interaction as, $-1.8 \mathrm{fm}^{-1} < 1/a_0 < -0.8 \mathrm{fm}^{-1}$ and $3.5 \mathrm{fm} < r_\mathrm{eff} < 7 \mathrm{fm}$, respectively,if $Λ$ samples do not include feed-down contribution from long-lived particles. We find that feed-down correction for $Σ^0$ decay reduces the sensitivity of the correlation function to the detail of the $ΛΛ$ interaction. As a result, we obtain a weaker constraint $1/a_0
description: 18 pages, 14 figures, discussions on feed-down contribution and possible residual correlation are added. To appear in Phys.Rev.C