cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uncovering hidden flows in physical networks
Creators: name: Wang, Chengwei
name: Grebogi, Celso
name: Baptista, Murilo S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Understanding the interactions among nodes in a complex network is of great importance, since they disclose how these nodes are cooperatively supporting the functioning of the network. Scientists have developed numerous methods to uncover the underlying adjacent physical connectivity based on measurements of functional quantities of the nodes states. Often, the physical connectivity, the adjacency matrix, is available. Yet, little is known about how this adjacent connectivity impacts on the "hidden" flows being exchanged between any two arbitrary nodes, after travelling longer non-adjacent paths. In this Letter, we show that hidden physical flows in conservative flow networks, a quantity that is usually inaccessible to measurements, can be determined by the interchange of physical flows between any pair of adjacent nodes. Our approach applies to steady or dynamic state of either linear or non-linear complex networks that can be modelled by conservative flow networks, such as gas supply networks, water supply networks and power grids.
Neutron stars structure in the context of massive gravity
Creators: name: Hendi, S. H.
name: Bordbar, G. H.
name: Panah, B. Eslam
name: Panahiyan, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the recent interests in spin$-2$ massive gravitons, we study the structure of neutron star in the context of massive gravity. The modifications of TOV equation in the presence of massive gravity are explored in $4$ and higher dimensions. Next, by considering the modern equation of state for the neutron star matter (which is extracted by the lowest order constrained variational (LOCV) method with the AV$18$ potential), different physical properties of the neutron star (such as Le Chatelier's principle, stability and energy conditions) are investigated. It is shown that consideration of the massive gravity has specific contributions into the structure of neutron star and introduces new prescriptions for the massive astrophysical objects. The mass-radius relation is examined and the effects of massive gravity on the Schwarzschild radius, average density, compactness, gravitational redshift and dynamical stability are studied. Finally, a relation between mass and radius of neutron star versus the Planck mass is extracted.
description: 17 pages, 6 figures
Stochastic thermodynamics in the strong coupling regime: An unambiguous approach based on coarse-graining
Creators: name: Strasberg, Philipp
name: Esposito, Massimiliano
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a classical and possibly driven composite system $X \otimes Y$ weakly coupled to a Markovian thermal reservoir $R$ so that an unambiguous stochastic thermodynamics ensues for $X \otimes Y$. This setup can be equivalently seen as a system $X$ strongly coupled to a non-Markovian reservoir $Y \otimes R$. We demonstrate that only in the limit where the dynamics of $Y$ is much faster then $X$, our unambiguous expressions for thermodynamic quantities such as heat, entropy or internal energy, are equivalent to the strong coupling expressions recently obtained in the literature using the Hamiltonian of mean force. By doing so, we also significantly extend these results by formulating them at the level of instantaneous rates and by allowing for time-dependent couplings between $X$ and its environment. Away from the limit where $Y$ evolves much faster than $X$, previous approaches fail to reproduce the correct results from the original unambiguous formulation, as we illustrate numerically for an underdamped Brownian particle coupled strongly to a non-Markovian reservoir.
description: 10 pages, 2 figures; slightly improved version: Eqs. (63), (64) are new, better comparison with the literature; accepted in Phys. Rev. E
RRING Global Interview Analysis and Validation Outputs (WP3)
Creators: name: Foulds, Chris
name: Sule, Obehi
name: Lorenz, Lars
Publisher: name: Zenodo
Year: 2019

description: The RRING Work Package 3 (WP3) objective was to clarify how organisations undertaking visible RRI-like activities operated within region-specific research and innovation environments. It explored how they navigated the governance and regulatory frameworks for Responsible Research and Innovation (RRI), alongside which they offered their perspectives on the entities responsible for RRI-related policy and action in their locales. WP3 carried out global interviews through and from researchers and innovators working within these RRI-practicing organisations, with a focus on investigating perspectives and experiences of researchers and innovators. The focus was on collecting data (i.e. ascertaining bottom-up views), providing insights on how and why research and innovation are supplied from those who are actually supplying it. In doing this, we paid particular attention to: key RRI-related platforms, spaces and players operating in this region; interactions between different stakeholder types (Research organisation, Research funding organisation, Industry and business, Civil society organisation, Policy body); domain-specific lessons related to Digital (ICT), Energy, Bioeconomy and Waste Management; as well as region-specific insights on what is shaping day-to-day research and innovation practice. Our sampling focused on the following geographical regions: African states; Arab states; Asian and Pacific states; European and North American States; and Latin American and Caribbean states. Across these regions, 113+ interviews were conducted, and the analysis and validation outputs include the following: A codebook Code counts covering all codes across all 113 interviews, including organisation at both themes and world regions Inter-coder reliability data and test results
Phase rotation symmetry and the topology of oriented scattering networks
Creators: name: Delplace, Pierre
name: Fruchart, Michel
name: Tauber, Clément
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the topological properties of dynamical states evolving on periodic oriented graphs. This evolution, that encodes the scattering processes occurring at the nodes of the graph, is described by a single-step global operator, in the spirit of the Ho-Chalker model. When the successive scattering events follow a cyclic sequence, the corresponding scattering network can be equivalently described by a discrete time-periodic unitary evolution, in line with Floquet systems. Such systems may present anomalous topological phases where all the first Chern numbers are vanishing, but where protected edge states appear in a finite geometry. To investigate the origin of such anomalous phases, we introduce the phase rotation symmetry, a generalization of usual symmetries which only occurs in unitary systems (as opposed to Hamiltonian systems). Equipped with this new tool, we explore a possible explanation of the pervasiveness of anomalous phases in scattering network models, and we define bulk topological invariants suited to both equivalent descriptions of the network model, which fully capture the topology of the system. We finally show that the two invariants coincide, again through a phase rotation symmetry arising from the particular structure of the network model.
On the origin of fast radio bursts (FRBs)
Creators: name: Waxman, Eli
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We derive stringent constraints on the persistent source associated with FRB 121102: Size $10^{17}$ cm $
description: Accepted to ApJ. 7 pages, 1 figure. Some explanations expanded. Discussion of beaming added. Some references updated
Manybody aspects of gravity in compact stars
Creators: name: Azam, Mofazzal
name: Bhatt, Jitesh R.
name: Sami, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Compact stars such as neutron stars and black holes are gravitationally bound many body systems. We investigate the importance of short and long range part of gravity for such systems. From our analysis, we conclude that the true essence of gravity lies with the long range nature of the interaction. At the end we show how these arguments in the manybody theory consistently leads to Dvali-Gomez picture of a black holes as a collective bound state of long wavelength gravitons.
description: Five pages, no figures In the revised version we have sharpened our arguments and incorporates some of the suggestions
Inhomogeneous chiral condensate in the quark-meson model
Creators: name: Adhikari, Prabal
name: Andersen, Jens O.
name: Kneschke, Patrick
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The two-flavor quark-meson model is used as a low-energy effective model for QCD to study inhomogeneous chiral condensates at finite %temperature $T$ baryon chemical potential $μ_B$. The parameters of the model are determined by matching the meson and quark masses, and the pion decay constant to their physical values using the on-shell and modified minimal subtraction schemes. Using a chiral-density wave ansatz for the inhomogeneity, we calculate the effective potential in the mean-field approximation and the result is completely analytic. The size of the inhomogeneous phase depends sensitively on the pion mass and whether one includes the vacuum fluctuations or not. Finally, we briefly discuss the mean-field phase diagram.
description: 15 pages and 7 figs
Neutrino-dominated accretion flows as the central engine of gamma-ray bursts
Creators: name: Liu, Tong
name: Gu, Wei-Min
name: Zhang, Bing
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Neutrino-dominated accretion flows (NDAFs) around rotating stellar-mass black holes (BHs) are plausible candidates for the central engines of gamma-ray bursts (GRBs). NDAFs are hyperaccretion disks with accretion rates in the range of around 0.001-10 $M_\odot ~\rm s^{-1}$, which have high density and temperature and therefore are extremely optically thick and geometrically slim or even thick. We review the theoretical progresses in studying the properties of NDAFs as well as their applications to the GRB phenomenology. The topics include: the steady radial and vertical structure of NDAFs and the implications for calculating neutrino luminosity and annihilation luminosity, jet power due to neutrino-antineutrino annihilation and Blandford-Znajek mechanism and their dependences on parameters such as BH mass, spin, and accretion rate, time evolution of NDAFs, effect of magnetic fields, applications of NDAF theories to the GRB phenomenology such as lightcurve variability, extended emission, X-ray flares, kilonovae, etc., as well as probing NDAFs using multi-messenger signals such as MeV neutrinos and gravitational waves.
description: 29 pages, 28 figures, accepted for publication in New Astronomy Reviews
Vortex-vortex control in exciton-polariton condensates
Creators: name: Ma, Xuekai
name: Schumacher, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Vortices are widely studied in fields ranging from nonlinear optics to magnetic systems and superconductors. A vortex carries a binary information corresponding to its topological charge, `plus' or `minus', that can be used for information storage and processing. In spatially extended optical and condensed many-particle systems, achieving full control over vortex formation and its charge is particularly difficult and is not easily extended to systems of multiple vortices. Here we demonstrate the optical creation of multiplets of phase-locked vortices in polariton condensates using off-resonant excitation with ring-shaped pump beams. We find that the vorticity of one vortex can be controlled solely using the phase-locking with other nearby vortices. Using this mechanism, we demonstrate how an existing vortex with a specific topological charge can be inverted to the oppositely charged state, and how the charge state of one reference vortex can be copied to a neighboring vortex. This way we can optically encode any set of binary information onto a chain of vortices. We further show that this information can be modified later by using the possibility to address and manipulate each vortex in the chain individually.
description: Physical Review B, in press
Refining the detection of the zero crossing for the symmetric and asymmetric three-gluon vertices
Creators: name: Boucaud, Ph.
name: De Soto, F.
name: Rodríguez-Quintero, J.
name: Zafeiropoulos, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This article reports on the detailed study of the three-gluon vertex in four-dimensional $SU(3)$ Yang-Mills theory employing lattice simulations with large physical volumes and high statistics. A meticulous scrutiny of the so-called symmetric and asymmetric kinematical configurations is performed and it is shown that the associated form-factor changes sign at a given range of momenta. The lattice results are compared to the model independent predictions of Schwinger-Dyson equations and a very good agreement among the two is found.
description: 24 pages, 4 figures, 2 Tables
Promising Ferroelectricity in 2D Group IV Tellurides: a First-Principles Study
Creators: name: Wan, Wenhui
name: Liu, Chang
name: Xiao, Wende
name: Yao, Yugui
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on the first-principles calculations, we investigated the ferroelectric properties of two-dimensional (2D) Group-IV tellurides XTe (X=Si, Ge and Sn), with a focus on GeTe. 2D Group-IV tellurides energetically prefer an orthorhombic phase with a hinge-like structure and an in-plane spontaneous polarization. The intrinsic Curie temperature Tc of monolayer GeTe is as high as 570 K and can be raised quickly by applying a tensile strain. An out-of-plane electric field can effectively decrease the coercive field for the reversal of polarization, extending its potential for regulating the polarization switching kinetics. Moreover, for bilayer GeTe the ferroelectric phase is still the ground state. Combined with these advantages, 2D GeTe is a promising candidate material for practical integrated ferroelectric applications.
description: 5 pages, 5 figures
title: INSIGHTS INTO THE GENESIS OF APOLLO LUNAR SOILS FROM CADMIUM STABLE ISOTOPES
Creators: name: Abouchami, Wafa
name: Wombacher, Frank
name: Galer, Stephen
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2022

description:
We present Cd isotope data on Apollo 12 (A12) mare soils and Apollo 16 (A16) highland soils to understand the volatile element distribution and processes of mass-dependent stable isotope fractionation at the lunar surface. Further, thermal neutron capture (n.c.) effects, reflected by an enrichment in 114Cd due to neutron absorption by 113Cd, record the history of near-surface exposure to galactic cosmic rays.

Our results show that Cd concentrations are on average lower in A12 than A16 soils. Covariations between ε112/110Cd and the maturity index are observed for A12 soils but not for A16 soils. Likewise, the positive covariation between n.c. effects and maturity index of A12 soils is lacking for A16 soils. In ε112/110Cd-Cd space, A12 and A16 soils define distinct negative correlations indicative of a Cd isotope dichotomy. These correlations reflect either Rayleigh fractionation due to evaporative Cd loss or binary mixing between mare basalt, highland feldspathic crust and Procellarum KREEP components. The Apollo 12 correlation intersects the BSE value corresponding also to the composition of the immature and KREEP-rich soil 12033. The ε112/110Cd-n.c. effect correlation in A12 soils constrains further the compositions of the KREEP and mare components to be, respectively, isotopically light and heavy. A corollary of a KREEP composition comparable to the bulk Earth value is that the Moon and Earth share a similar Cd isotope signature. This, in turn, would imply Moon formation from a well-mixed vapor disk without significant isotope fractionation imparted by volatile loss during and following the giant impact.
Photonic chiral vortical effect
Creators: name: Yamamoto, Naoki
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Circularly polarized photons have the Berry curvature in the semiclassical regime. Based on the kinetic equation for such chiral photons, we derive the (non)equilibrium expression of the photon current in the direction of the vorticity. We briefly discuss the relevance of this "photonic chiral vortical effect" in pulsars and rotating massive stars and its possible realization in semiconductors.
description: 9 pages; v2: published version
On the large-Q^2 behavior of the pion transition form factor
Creators: name: Eichmann, Gernot
name: Fischer, Christian S.
name: Weil, Esther
name: Williams, Richard
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the transition of non-perturbative to perturbative QCD in situations with possible violations of scaling limits. To this end we consider the singly- and doubly-virtual pion transition form factor $π^0\toγγ$ at all momentum scales of symmetric and asymmetric photon momenta within the Dyson-Schwinger/Bethe-Salpeter approach. For the doubly virtual form factor we find good agreement with perturbative asymptotic scaling laws. For the singly-virtual form factor our results agree with the Belle data. At very large off-shell photon momenta we identify a mechanism that introduces quantitative modifications to Efremov-Radyushkin-Brodsky-Lepage scaling.
description: 5 pages, 7 figures, v3:contents revised, version published in PLB
The index of singular zeros of harmonic mappings of anti-analytic degree one
Creators: name: Luce, Robert
name: Sète, Olivier
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 31A05, 30C55

description: We study harmonic mappings of the form $f(z) = h(z) - \overline{z}$, where $h$ is an analytic function. In particular we are interested in the index (a generalized multiplicity) of the zeros of such functions. Outside the critical set of $f$, where the Jacobian of $f$ is non-vanishing, it is known that this index has similar properties as the classical multiplicity of zeros of analytic functions. Little is known about the index of zeros on the critical set, where the Jacobian vanishes; such zeros are called singular zeros. Our main result is a characterization of the index of singular zeros, which enables one to determine the index directly from the power series of $h$.
Derivation of Feynman Rules for Higher Order Poles Using Cross-ratio Identities in CHY Construction
Creators: name: Zhou, Kang
name: Rao, Junjie
name: Feng, Bo
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order to generalize the integration rules to general CHY integrands which include higher order poles, algorithms are proposed in two directions. One is to conjecture new rules, and the other is to use the cross-ratio identity method. In this paper,we use the cross-ratio identity approach to re-derive the conjectured integration rules involving higher order poles for several special cases: the single double pole, single triple pole and duplex-double pole. The equivalence between the present formulas and the previously conjectured ones is discussed for the first two situations.
description: 29 pages, 11 figures
Communicating & Disseminating Your Project
Creators: name: Cheripka, Michelle
Publisher: name: Zenodo
Year: 2024

description: In this workshop, we will examine the trajectory of the concept of “common(s)” and its application to theactivities of the SEEKCommons network.

Fellows are requested to bring one example of a meaningful experience with the common(s) with respectto their fellowship project. The final portion of the workshop will examine these examples vis-a-vis the
An Empirical Analysis of NMT-Derived Interlingual Embeddings and their Use in Parallel Sentence Identification
Creators: name: España-Bonet, Cristina
name: Varga, Ádám Csaba
name: Barrón-Cedeño, Alberto
name: van Genabith, Josef
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: End-to-end neural machine translation has overtaken statistical machine translation in terms of translation quality for some language pairs, specially those with large amounts of parallel data. Besides this palpable improvement, neural networks provide several new properties. A single system can be trained to translate between many languages at almost no additional cost other than training time. Furthermore, internal representations learned by the network serve as a new semantic representation of words -or sentences- which, unlike standard word embeddings, are learned in an essentially bilingual or even multilingual context. In view of these properties, the contribution of the present work is two-fold. First, we systematically study the NMT context vectors, i.e. output of the encoder, and their power as an interlingua representation of a sentence. We assess their quality and effectiveness by measuring similarities across translations, as well as semantically related and semantically unrelated sentence pairs. Second, as extrinsic evaluation of the first point, we identify parallel sentences in comparable corpora, obtaining an F1=98.2% on data from a shared task when using only NMT context vectors. Using context vectors jointly with similarity measures F1 reaches 98.9%.
description: 11 pages, 4 figures
Vibrational assisted conduction in a molecular wire
Creators: name: Pigeon, Simon
name: Fusco, Lorenzo
name: De Chiara, Gabriele
name: Paternostro, Mauro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed study of the conduction properties of a molecular wire where hopping processes between electronic sites are coupled to a vibrational mode of the molecule. The latter is sandwiched between two electronic leads at finite temperatures. We show that the electro-mechanical coupling can lead to a strong enhancement of the lead-to-lead conduction. Moreover, under suitable driving of the molecular vibrational mode, the device can act as a transistor passing sharply from enhanced conduction to short-circuit configuration.
description: 10 pages with appendix and 5 figures
Jet clustering dependence of VBF Higgs production
Creators: name: Rauch, Michael
name: Zeppenfeld, Dieter
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Precise predictions for Higgs production via vector-boson fusion play an important role when testing the properties of the Higgs boson and probing new-physics effects. While the inclusive cross section changes little when including NNLO and N3LO QCD corrections, a differential NNLO calculation with typical VBF cuts shows large corrections of up to 10% in distributions. In this article, we investigate the dependence of the differential NNLO QCD calculation on the jet definition. Starting from the known results at a fixed jet clustering choice, we use the electroweak H+3 jets production cross section at NLO precision to derive NNLO results for H+2 jets production for other jet definitions. We find that larger clustering radii significantly reduce the impact of NNLO corrections. The sizable NNLO corrections for distributions are largely caused by the broader energy flow inside jets at NNLO and are to be expected generally for processes with jets at LO.
description: 10 pages, 4 figures; v2: extended discussion of procedure, results and conclusions unchanged, version to appear in PRD
Non-convex optimization for self-calibration of direction-dependent effects in radio interferometric imaging
Creators: name: Repetti, Audrey
name: Birdi, Jasleen
name: Dabbech, Arwa
name: Wiaux, Yves
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radio interferometric imaging aims to estimate an unknown sky intensity image from degraded observations, acquired through an antenna array. In the theoretical case of a perfectly calibrated array, it has been shown that solving the corresponding imaging problem by iterative algorithms based on convex optimization and compressive sensing theory can be competitive with classical algorithms such as CLEAN. However, in practice, antenna-based gains are unknown and have to be calibrated. Future radio telescopes, such as the SKA, aim at improving imaging resolution and sensitivity by orders of magnitude. At this precision level, the direction-dependency of the gains must be accounted for, and radio interferometric imaging can be understood as a blind deconvolution problem. In this context, the underlying minimization problem is non-convex, and adapted techniques have to be designed. In this work, leveraging recent developments in non-convex optimization, we propose the first joint calibration and imaging method in radio interferometry, with proven convergence guarantees. Our approach, based on a block-coordinate forward-backward algorithm, jointly accounts for visibilities and suitable priors on both the image and the direction-dependent effects (DDEs). As demonstrated in recent works, sparsity remains the prior of choice for the image, while DDEs are modelled as smooth functions of the sky, i.e. spatially band-limited. Finally, we show through simulations the efficiency of our method, for the reconstruction of both images of point sources and complex extended sources. MATLAB code is available on GitHub.
Theoretical description of the decays $Λ_b \to Λ^{(\ast)}(\frac12^\pm,\frac32^\pm) + J/ψ$
Creators: name: Gutsche, Thomas
name: Ivanov, Mikhail A.
name: Körner, Jürgen G.
name: Lyubovitskij, Valery E.
name: Lyubushkin, Vladimir V.
name: Santorelli, Pietro
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We calculate the invariant and helicity amplitudes for the transitions $Λ_b~\to~Λ^{(\ast)}(J^P)~+~J/ψ$ where the $Λ^{(\ast)}(J^P)$ are $Λ(sud)$-type ground and excited states with $J^P$ quantum numbers $J^P=\frac12^{\pm},\frac32^{\pm}$. The calculations are performed in the framework of a covariant confined quark model previously developed by us. We find that the values of the helicity amplitudes for the $Λ^\ast(1520,\,\frac32^-)$ and the $Λ^\ast(1890,\,\frac32^+)$ are suppressed compared with those for the ground state $Λ(1116,\,\frac12^+)$ and the excited state $Λ^\ast(1405,\,\frac12^-)$. This analysis is important for the identification of the hidden charm pentaquark states $P_c^+(4380)$ and $P_c^+(4450)$ which were discovered in the decay chain $Λ_b^0~\to~P_c^+(~\to~p~J/ψ)~+~K^- $ because the cascade decay chain $Λ_b~\to~Λ^\ast(\frac32^\pm)(~\to~pK^-)~+~J/ψ$ involves the same final state.
description: 15 pages, 4 figures. Minor corrections done
Deliberate Practice zur Weiterentwicklung therapeutischer Fertigkeitened
Creators: name: Jacobi, Frank
name: Brehm, Michelle
Publisher: name: figshare
Year: 2022
Subjects: Clinical Psychology

description: Wir möchten ein Schlaglicht auf einen besonders vielversprechenden Ansatz - " Deliberate Practice" - werfen, der zwar mit Supervision bzw. Intervision vertrauten Menschen nichtwirklich neue Erkenntnisse liefert. Aber er ist mittlerweileim angloamerikanischen Raum so praxisbewährt und wissenschaftlich so gut fundiert, dass wir es für die Profession nützlich finden, ihn zu kennen.Unsere Kurzdarstellung von Deliberate Practice liefert einige Basic Facts zu diesem international zunehmend populären Ansatz und soll dafür sensibilisieren, wie ein erfolgreiches internes, selbstgesteuertes Qualitätsmanagement in der Psychotherapie mit unmittelbarem Bezug zu der eigenen klinischen Arbeit aussehen kann.
Strong Coupling between a Single NV Spin and the Rotational Mode of Diamonds Levitating in an Ion Trap
Creators: name: Delord, T.
name: Nicolas, L.
name: Chassagneux, Y.
name: Hétet, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A scheme for strong coupling between a single atomic spin and the rotational mode of levitating nanoparticles is proposed. The idea is based on spin read-out of NV centers embedded in aspherical nanodiamonds levitating in an ion trap. We show that the asymmetry of the diamond induces a rotational confinement in the ion trap. Using a weak homogeneous magnetic field and a strong microwave driving we then demonstrate that the spin of the NV center can be strongly coupled to the rotational motion of the diamond.
description: New version with a focus on the strong coupling. "Torsional" has also been changed to "rotational"
Quasi-distribution amplitudes for pion and kaon via the nonlocal chiral-quark model
Creators: name: Nam, Seung-il
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the pseudoscalar (PS) meson ($π$ and $K$) quasi-distribution amplitude (QDA), which is supposed to be an asymptotic analog to the meson distribution amplitude (DA) $ϕ_{π,K}(x)$ in the limit of the large longitudinal PS-meson momentum, i.e. $p_3\to\infty$, in the nonperturbative region. For this purpose, we employ the nonlocal chiral-quark model (NLChQM) in the light-front formalism with a minimal Fock-state for the mesons $\sim q\bar{q}$ at the low-energy scale parameter of the model $Λ\sim1$ GeV. As a trial, we extract the transverse-momentum distribution amplitude (TMDA) from the light-front wave function within the model, and convert it to QDA with help of the virtuality-distribution amplitude. By doing that, we derive an analytical expression for the nonperturbative QDA with the current-quark mass correction up to $\mathcal{O}(Δm_q)$. Numerically, we confirm that the obtained TMDA reproduces the experimental data for the photon-pion transition form factor $F_{γγ^*π^0}(Q^2)$ at the low-$Q^2$ qualitatively well. We also observe that the obtained QDA approaches to DA as $p_3$ increases, showing the symmetric and asymmetric curves with respect to $x$ for the pion and kaon, respectively, due to the current-quark mass difference $m_{u,d}\ll m_s$. Assigning $ξ\equiv2x-1$, the moments $\langleξ^n\rangle_{π,K}$ are computed, using the pion and kaon QDAs, and there appear only a few percent deviations in the moments for $p_3\gtrsim30Λ$ in comparison to the values calculated directly from DAs. It turns out that the higher moments are more sensitive to the change of $p_3$, whereas the lower ones depend less on it.
description: 12 pages, 8 figures, accepted for publication via Mod. Phys. Lett. A
A Lower Bound on the Energy Density in Classical and Quantum Field Theories
Creators: name: Wall, Aron C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A novel method for deriving energy conditions in stable field theories is described. In a local classical theory with one spatial dimension, a local energy condition always exists. For a relativistic field theory, one obtains the dominant energy condition. In a quantum field theory, there instead exists a quantum energy condition, i.e. a lower bound on the energy density that depends on information-theoretic quantities. Some extensions to higher dimensions are briefly discussed.
description: 7 pages, no figures. v2: fixed typos, added refs, other minor changes, v3: minor corrections, changed title (was "From Global to Local Energy Conditions")
The LWA1 Low Frequency Sky Survey
Creators: name: Dowell, Jayce
name: Taylor, Gregory B.
name: Schinzel, Frank K.
name: Kassim, Namir E.
name: Stovall, Kevin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a survey of the radio sky accessible from the first station of the Long Wavelength Array (LWA1). Images are presented at nine frequencies between 35 and 80 MHz with spatial resolutions ranging from $4.7^\circ$ to $2.0^\circ$, respectively. The maps cover the sky north of a declination of $-40^\circ$ and represent the most modern systematic survey of the diffuse Galactic emission within this frequency range. We also combine our survey with other low frequency sky maps to create an updated model of the low frequency sky. Due to the low frequencies probed by our survey, the updated model better accounts for the effects of free-free absorption from Galactic ionized Hydrogen. A longer term motivation behind this survey is to understand the foreground emission that obscures the redshifted 21 cm transition of neutral hydrogen from the cosmic dark ages ($z>10$) and, at higher frequencies, the epoch of reionization ($z>6$).
description: MNRAS accepted: 15 pages, 16 figures
Barjols, rue de la République, façade de restaurant
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Dynamical system analysis of interacting models
Creators: name: Carneiro, S.
name: Borges, H. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a dynamical system analysis of a cosmological model with linear dependence between the vacuum density and the Hubble parameter, with constant-rate creation of dark matter. We show that the de Sitter spacetime is an asymptotically stable critical point, future limit of any expanding solution. Our analysis also shows that the Minkowski spacetime is an unstable critical point, which eventually collapses to a singularity. In this way, such a prescription for the vacuum decay not only predicts the correct future de Sitter limit, but also forbids the existence of a stable Minkowski universe. We also study the effect of matter creation on the growth of structures and their peculiar velocities, showing that it is inside the current errors of redshift space distortions observations.
description: 6 pages, 3 figures. A section was added with an analysis of structures growth rate and peculiar velocities. To appear in General Relativity and Gravitation
title: Sweet death – lead glazed Renaissance ceramics and their interaction with acidic foodstuffs
Creators: name: Rehren, Thilo
name: Delbey, Thomas
name: Santarelli, Brunella
name: Fogarizzu, Giulia
name: Rasmussen, Kaare
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2022

description:
We present analyses of lead glazes from dishes and storage bowl from six Renaissance (1536 to 1660 CE) sites in southern Denmark and northern Germany. All are high-lead silicates, ranging from 55 wt% to 75 wt% PbO, with only silica and alumina routinely exceeding c 1 wt%. The underlying bodies are ferruginous clays with 15 to 20 wt% Al2O3 and <10 wt% Fe2O3.

Here, we discuss the relationship between the PbO content in the glaze with the amount of lead entering acidic foodstuffs stored or served in these vessels. The experiments used 4 wt% acetic acid, similar to common foodstuffs preserved with vinegar such as pickles. This concentration is high enough to be effective in preserving food, while low enough to taste good. It also approximates official test methods for the release of Pb for glass hollowware in contact with food according to ISO 7086-1.

We found a strong exponential correlation between lead leaching and lead oxide content in the glaze, reaching toxic levels in the leachate solution after short periods of exposure (less than 1 day) for PbO contents above c 70 wt% PbO. Our research shows that widely distributed lead-glazed ceramics had the potential of being a main source of Pb in human bodies. How the pottery was actually used, in combination with kitchen wares fashioned from other materials, might explain why lead-glazed ceramics might not have had quite the poisonous consequences the etching experiments suggest.
Monodromy Relations in Higher-Loop String Amplitudes
Creators: name: Hohenegger, S.
name: Stieberger, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: New monodromy relations of loop amplitudes are derived in open string theory. We particularly study N-point one-loop amplitudes described by a world-sheet cylinder (planar and non-planar) and derive a set of relations between subamplitudes of different color orderings. Various consistency checks are performed by matching alpha'-expansions of planar and non-planar amplitudes involving elliptic iterated integrals with the resulting periods giving rise to two sets of multiple elliptic zeta values. The latter refer to the two homology cycles on the once-punctured complex elliptic curve and the monodromy equations provide relations between these two sets of multiple elliptic zeta values. Furthermore, our monodromy relations involve new objects for which we present a tentative interpretation in terms of open string scattering amplitudes in the presence of a non-trivial gauge field flux. Finally, we provide an outlook on how to generalize the new monodromy relations to the non-oriented case and beyond the one-loop level. Comparing a subset of our results with recent findings in the literature we find therein several serious issues related to the structure and significance of monodromy phases and the relevance of missed contributions from contour integrations.
description: 75 pages, LaTeX; v2: Final version to appear in Nucl. Phys. B. Several minor typos removed. Not any changes in results and conclusions
Ab initio nuclear response functions for dark matter searches
Creators: name: Gazda, Daniel
name: Catena, Riccardo
name: Forssén, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the process of dark matter particles scattering off $^{3,4}$He with nuclear wave functions computed using an ab initio many-body framework. We employ realistic nuclear interactions from chiral effective field theory at next-to-next-to-leading order (NNLO) and develop an ab initio scheme to compute a general set of different nuclear response functions. In particular, we then perform an accompanying uncertainty quantification on these quantities and study error propagation to physical observables. We find a rich structure of allowed nuclear responses with significant uncertainties for certain spin-dependent interactions. The approach and results that are presented in this Paper establish a new framework for nuclear structure calculations and uncertainty quantification in the context of direct and (certain) indirect searches for dark matter.
description: version accepted for publication in Phys. Rev. D; figures revised (incl. corrected labels); discussion of results extended
Agroforestry systems in the Spanish CAP Strategic Plan: analysis and reflection
Creators: name: Bertomeu, Manuel
name: Coello, Jaime
name: Lawson, Gerry
name: Armengot, Laura
name: Baiges, Teresa
name: Borràs Calvo, Gabriel
name: Casadesús, Andrea
name: Pascual Sanchez, Diana
name: Pauné, Ferran
name: Rull, Joana
name: Sánchez, Laia
name: de Torre Barrio, Beatriz
Publisher: name: Zenodo
Year: 2024

description: Policy Briefing #44 (v1) summarises the inclusion of agroforestry in the Spanish CAP Strategic Plan 2023-27 (CSP), and other related national and regional plans and regulations.

A maximum of 100 trees/ha is allowed for agroforestry to remain classified as “arable land” or “permanent crops”, although autonomous regions have the option to reduce this threshold. In “permanent pasture” agroforestry is defined in a more flexible way, based on remotely-sensed information, including LIDAR, and the calculation of a “coefficient of eligibility” for basic payments. 

Pillar I of the CAP (Direct Payments) describes nine Good Agricultural and Environmental Conditions (GAEC/GAEC) which should be maintained by farmers and administrations. Three of these are particularly relevant to agroforestry: GAEC-8 (maintaining landscape features), GAEC-1 (preserving ratios of permanent pasture) and GAEC-9 (ban on converting permanent pasture in Natura 2000 sites).

Also in Pillar I is the new concept of eco-schemes. From the nine eco-schemes implemented by Spain, there are six that may be relevant to agroforestry - in particular those related to extensive grazing and the maintenance of vegetative cover in permanent crops.

Pillar II of the CAP includes various rural development measures relevant to agroforestry. There are 28 "investment" or "agri-environment-climate" measures in Spain, and at least 13 could be used for the establishment and maintenance of agroforestry - however only two of these explicitly use the term in their titles.

Agroforestry-related measures have been activated in 10 - 11 autonomous regions. All regions have activated at least 4 of the 13 measures, with an average of 7 measures per region.

In the CAP Performance Monitoring and Evaluation Framework, three indicators are particularly important: R.17, which indicates the are of forestry and agroforestry established by Member States; O.16 which indicates the amount of forestry and agroforestry receiving annual support from Member States and I.21, which indicates the area of landscape-feature supported by member states.

The Spanish Land Parcel Identification System (SIGPAC) is almost unique in Europe, since it includes both agricultural and forest parcels, and has two specific land use categories for silvopasture titled "pastures-with-trees" and "pastures-with-shrubs".
description: EURAF Policy Briefing #44
Controlling percolation with limited resources
Creators: name: Schröder, Malte
name: Araújo, Nuno A. M.
name: Sornette, Didier
name: Nagler, Jan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Connectivity - or the lack thereof - is crucial for the function of many man-made systems, from financial and economic networks over epidemic spreading in social networks to technical infrastructure. Often, connections are deliberately established or removed to induce, maintain, or destroy global connectivity. Thus, there has been a great interest in understanding how to control percolation, the transition to large-scale connectivity. Previous work, however, studied control strategies assuming unlimited resources. Here, we depart from this unrealistic assumption and consider the effect of limited resources on the effectiveness of control. We show that, even for scarce resources, percolation can be controlled with an efficient intervention strategy. We derive this strategy and study its implications, revealing a discontinuous transition as an unintended side-effect of optimal control.
description: 5 pages, 4 figures, additional supplemental material (19 pages)
More on the Hidden Symmetries of 11D Supergravity
Creators: name: Andrianopoli, L.
name: D'Auria, R.
name: Ravera, L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we clarify the relations occurring among the osp(1|32) algebra, the M-algebra and the hidden superalgebra underlying the Free Differential Algebra of D=11 supergravity (to which we will refer as DF-algebra) that was introduced in the literature by D'Auria and Fré in 1981 and is actually a (Lorentz valued) central extension of the M-algebra including a nilpotent spinor generator, Q'. We focus in particular on the 4-form cohomology in 11D superspace of the supergravity theory, strictly related to the presence in the theory of a 3-form $A^{(3)}$. Once formulated in terms of its hidden superalgebra of 1-forms, we find that $A^{(3)}$ can be decomposed into the sum of two parts having different group-theoretical meaning: One of them allows to reproduce the FDA of the 11D Supergravity due to non-trivial contributions to the 4-form cohomology in superspace, while the second one does not contribute to the 4-form cohomology, being a closed 3-form in the vacuum, defining however a one parameter family of trilinear forms invariant under a symmetry algebra related to osp(1|32) by redefining the spin connection and adding a new Maurer-Cartan equation. We further discuss about the crucial role played by the 1-form spinor $η$ (dual to the nilpotent generator Q') for the 4-form cohomology of the eleven dimensional theory on superspace.
description: Title and abstract changed to better represent the content, some points clarified, mainly in Section 2 and in the concluding section, references added. Version accepted for publication on Physics Letters B