cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
BW-EDA-EEND: Streaming End-to-End Neural Speaker Diarization for a Variable Number of Speakers
Creators: name: Han, Eunjung
name: Lee, Chul
name: Stolcke, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present a novel online end-to-end neural diarization system, BW-EDA-EEND, that processes data incrementally for a variable number of speakers. The system is based on the Encoder-Decoder-Attractor (EDA) architecture of Horiguchi et al., but utilizes the incremental Transformer encoder, attending only to its left contexts and using block-level recurrence in the hidden states to carry information from block to block, making the algorithm complexity linear in time. We propose two variants: For unlimited-latency BW-EDA-EEND, which processes inputs in linear time, we show only moderate degradation for up to two speakers using a context size of 10 seconds compared to offline EDA-EEND. With more than two speakers, the accuracy gap between online and offline grows, but the algorithm still outperforms a baseline offline clustering diarization system for one to four speakers with unlimited context size, and shows comparable accuracy with context size of 10 seconds. For limited-latency BW-EDA-EEND, which produces diarization outputs block-by-block as audio arrives, we show accuracy comparable to the offline clustering-based system.
Thomas-Ehrman shifts
Creators: name: Aumann, T.
name: Chulkov, L. V.
name: Jonson, B.
name: Marganiec, J.
name: Nilsson, T.
name: Simon, H.
name: Wamers, F.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Periodic Variability During the X-ray Decline of 4U 1636-53
Creators: name: Shih, I. C.
name: Bird, A. J.
name: Charles, P. A.
name: Cornelisse, R.
name: Tiramani, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the onset of a large amplitude, statistically significant periodicity (~46 d) in the RXTE/ASM data of the prototype X-ray burster 4U 1636-53, the X-ray flux of which has been gradually declining over the last four years. This behaviour is remarkably similar to that observed in the neutron star LMXB KS 1731-260, which is a long-term transient. We also report on an INTEGRAL/IBIS observation of 4U 1636-53 during its decline phase, and find that the hard X-ray flux (20-100 keV) indicates an apparent anti-correlation with soft X-rays (2-12 keV). We argue that 4U 1636-53 is transiting from activity to quiescence, as occurred in KS 1731-260. We also suggest that the variability during the X-ray decline is the result of an accretion rate variability related to the X-ray irradiation of the disc.
description: 6 pages. Accepted by MNRAS
Aspect ratio affects iceberg melting
Creators: name: Hester, Eric W.
name: McConnochie, Craig D.
name: Cenedese, Claudia
name: Couston, Louis-Alexandre
name: Vasil, Geoffrey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Iceberg meltwater is a critical freshwater flux from the cryosphere to the oceans. Global climate simulations therefore require simple and accurate parameterisations of iceberg melting. Iceberg shape is an important but often neglected aspect of iceberg melting. Icebergs have an enormous range of shapes and sizes, and distinct processes dominate basal and side melting. We show how different iceberg aspect ratios and relative ambient water velocities affect melting using a combined experimental and numerical study. The experimental results show significant variations in melting between different iceberg faces, as well as within each iceberg face. These findings are reproduced and explained with novel multiphysics numerical simulations. At high relative ambient velocities melting is largest on the side facing the flow, and mixing during vortex generation causes local increases in basal melt rates of over 50%. Double-diffusive buoyancy effects become significant when the relative ambient velocity is low. Existing melting parameterisations do not reproduce our findings. We propose several corrections to capture the influence of aspect ratio on iceberg melting.
description: 16 pages, 11 figures. Compare to additional parameterisations, and propose novel parameterisation
Denseness of Ashtekar-Lewandowski states and a generalized cut-off in loop quantum gravity
Creators: name: Velhinho, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that the set of states of the Ashtekar-Isham-Lewandowski holonomy algebra defined by elements of the Ashtekar-Lewandowski Hilbert space is dense in the space of all states. We consider weak convergence properties of a modified version of the cut-off procedure currently in use in loop quantum gravity. This version is adapted to vector states rather than to general distributions.
description: 16 pages. Minor changes, references added
Collision dominated, ballistic, and viscous regimes of terahertz plasmonic detection by graphene
Creators: name: Zhang, Yuhui
name: Shur, Michael S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The terahertz detection performance and operating regimes of graphene plasmonic field-effect transistors (FETs) were investigated by a hydrodynamic model. Continuous wave detection simulations showed that the graphene response sensitivity is similar to that of other materials including Si, InGaAs, GaN, and diamond-based FETs. However, the pulse detection results indicated a very short response time, which favors the rapid/high-sensitively detection. The analysis on the mobility dependence of the response time revealed the same detection regimes as the traditional semiconductor materials, i.e. the non-resonant (collision dominated) regime, the resonant ballistic regime, and the viscous regime. When the kinematic viscosity (ν) is above a certain critical viscosity value, νNR, the plasmonic FETs always operates in the viscous non-resonant regime regardless of channel length (L). In this regime, the response time rises monotonically with the increase of L. When ν < νNR, the plasmonic resonance can be reached in a certain range of L (i.e. the resonant window). Within this window, the carrier transport is ballistic. For a sufficiently short channel, the graphene devices would always operate in the non-resonant regime regardless of the field-effect mobility, corresponding to another viscous regime. The above work mapped the operating regimes of graphene plasmonic FETs, and demonstrated the significance of the viscous effects for the graphene plasmonic detection. These results could be used for the extraction of the temperature dependences of viscosity in graphene.
description: 15 pages, 11 figures
Celestial roots : the music of Sydney's Chinese, 1954-2004
Creators: name: Ng, Nicholas Francis
Publisher: name: The Australian National University
Year: 2008
Subjects: subject: Chinese MusicAustralia Sydney (N.S.W.)
subject: Chinese Australians MusicAustralia Sydney (N.S.W.)
subject: Chinese Australians Social life and customsAustralia Sydney (N.S.W.)
subject: Church music History and criticismSydney (N.S.W.)

description: v.1. Dissertation -- v.2. Folio (includes musical compositions by author/composer)
Machine Learning approach to muon spectroscopy analysis
Creators: name: Tula, T.
name: Möller, G.
name: Quintanilla, J.
name: Giblin, S. R.
name: Hillier, A. D.
name: McCabe, E. E.
name: Ramos, S.
name: Barker, D. S.
name: Gibson, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In recent years, Artificial Intelligence techniques have proved to be very successful when applied to problems in physical sciences. Here we apply an unsupervised Machine Learning (ML) algorithm called Principal Component Analysis (PCA) as a tool to analyse the data from muon spectroscopy experiments. Specifically, we apply the ML technique to detect phase transitions in various materials. The measured quantity in muon spectroscopy is an asymmetry function, which may hold information about the distribution of the intrinsic magnetic field in combination with the dynamics of the sample. Sharp changes of shape of asymmetry functions - measured at different temperatures - might indicate a phase transition. Existing methods of processing the muon spectroscopy data are based on regression analysis, but choosing the right fitting function requires knowledge about the underlying physics of the probed material. Conversely, Principal Component Analysis focuses on small differences in the asymmetry curves and works without any prior assumptions about the studied samples. We discovered that the PCA method works well in detecting phase transitions in muon spectroscopy experiments and can serve as an alternative to current analysis, especially if the physics of the studied material are not entirely known. Additionally, we found out that our ML technique seems to work best with large numbers of measurements, regardless of whether the algorithm takes data only for a single material or whether the analysis is performed simultaneously for many materials with different physical properties.
description: 11 pages, 7 figures, to be submitted to the Journal of Physics: Condensed Matter special issue on "Machine Learning in Condensed Matter Physics"
Recoil-$\alpha$-fission and recoil-$\alpha-\alpha$-fission chains stemming from element 115
Creators: name: Rudolph, D.
name: Forsberg, U.
name: Düllmann, C. E.
name: Golubev, P.
name: Hessberger, F.
name: Khuyagbaatar, J.
name: Kratz, J. V.
name: Sarmiento, L. G.
name: Yakushev, A.
name: Ackermann, D.
name: Andersson, L.
name: Block, M.
name: Brand, H.
name: Crox, D.
name: Derkx, X.
name: Di Nitto, A.
name: Eberhardt, K.
name: Even, J.
name: Fahlander, C.
name: Gates, J. M.
name: Gerl, J.
name: Gregorich, E. K.
name: Gross, C. J.
name: Herzberg, R.
name: Jäger, E.
name: Kindler, B.
name: Krier, J.
name: Kojouharov, I.
name: Kurz, N.
name: Lommel, B.
name: Mistry, A.
name: Mokry, C.
name: Nitsche, H.
name: Omtvedt, J. P.
name: Papadakis, P.
name: Runke, J.
name: Rykaczewski, K.
name: Schädel, M.
name: Schaffner, H.
name: Schausten, B.
name: Thörle-Pospiech, P.
name: Torres De Heidenreich, T.
name: Traut, T.
name: Trautmann, N.
name: Thürler, A.
name: Ward, A.
name: Wiehl, N.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Interfacial area transport for bubbly-to-slug transition flows in small diameter pipes
Creators: name: Dang, Zhuoran
name: Ishii, Mamoru
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This study aims to experimentally investigate the two-group interfacial area transport in small diameter pipes. Experimental data focusing on the bubbly to slug transition regime, namely one-group to two-group transport region, are collected in a 12.7 mm vertical pipe under adiabatic, air-water conditions. The result shows the intergroup transfer in the small diameter pipe can be drastic, especially under low superficial liquid velocities. The cause of this phenomenon is mainly due to the large relative bubble size comparing to the pipe cross-sectional area. The wake entrainment effect could be enhanced by the small spherical bubbles that are acting like cap or slug bubbles in a medium-size pipe. Based on the experimental observation, a throughout analysis of the dependence of the drastic intergroup transfer is provided in this study. The models predicting the initiation of drastic intergroup transfer in small diameter pipes in terms of the bubble diameter and the void fraction are developed. These models are compared with the two-phase data among the different pipe sizes and the results show a good agreement. These newly developed models are applied to the IATE wake entrainment model by developing a transition function analogous to the sigmoid function. With the transition function, the revised IATE model is given the new ability on predicting the drastic intergroup transfer phenomenon.
Hamiltonian for tidal interactions in compact binary systems to next-to-next-to-leading post-Newtonian order
Creators: name: Henry, Quentin
name: Faye, Guillaume
name: Blanchet, Luc
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In previous works, we obtained the leading, next-to-leading and next-to-next-to-leading (NNL) post-Newtonian (PN) corrections in the conservative tidal interactions between two compact non-spinning objects using a Lagrangian of effective field theory (EFT) in harmonic coordinates. In the present paper, we compute the corresponding NNL PN tidal effective Hamiltonian in ADM-like and isotropic coordinates, with contributions from mass quadrupole, current quadrupole and mass octupole tidal interactions, consistently included at that level. We also derive the NNL tidal Hamiltonian in Delaunay variables. We find full agreement in the overlap with recent results that were derived using tools from scattering amplitudes and the EFT to second post-Minkowskian (PM) order.
description: 10 pages
A classification of symmetric polynomials of infinite variables -- a construction of Abelian and non-Abelian quantum Hall states
Creators: name: Wen, Xiao-Gang
name: Wang, Zhenghan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Classification of complex wave functions of infinite variables is an important problem since it is related to the classification of possible quantum states of matter. In this paper, we propose a way to classify symmetric polynomials of infinite variables using the pattern of zeros of the polynomials. Such a classification leads to a construction of a class of simple non-Abelian quantum Hall states which are closely related to parafermion conformal field theories.
description: 21 pages, RevTeX4
Highly polar molecules consisting of a copper or silver atom interacting with an alkali-metal or alkaline-earth-metal atom
Creators: name: Śmiałkowski, Michał
name: Tomza, Michał
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We theoretically investigate the properties of highly polar diatomic molecules containing $^2S$-state transition-metal atoms. We calculate potential energy curves, permanent electric dipole moments, spectroscopic constants, and leading long-range dispersion-interaction coefficients for molecules consisting of either a Cu or Ag atom interacting with an alkali-metal (Li, Na, K, Rb, Cs, Fr) or alkaline-earth-metal (Be, Mg, Ca, Sr, Ba, Ra) atom. We use ab initio electronic structure methods, such as the coupled cluster and configuration interaction ones, with large Gaussian basis sets and small-core relativistic energy-consistent pseudopotentials. We predict that the studied molecules in the ground electronic state are strongly bound with highly polarized covalent or ionic bonds resulting in very large permanent electric dipole moments. We find that highly excited vibrational levels have maximal electric dipole moments, e.g., exceeding 13$\,$debye for CsAg and 6$\,$debye for BaAg. Results for Cu$_2$, Ag$_2$, and CuAg are also reported. The studied molecules may find application in ultracold dipolar many-body physics, controlled chemistry, or precision measurement experiments.
description: 13 pages, 4 figures, 2 tables
Der Ökumenische Rat und die römisch-katholische Kirche
Creators: name: Visser 'T Hooft, Willem Adolph
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 35 Nr. 1 (1986): Ökumenische Rundschau, Band 35, Heft 1
Monitoramento utilizando dispositivos vestíveis na avaliação neurofuncional: Aplicação na doença de Parkinson" do livro Avaliação Neurológica Funcional.
Creators: name: RABELO, AMANDA GOMES
name: Almeida, Rodrigo M. A.
name: Andrade, Adriano De Oliveira
Publisher: name: Zenodo
Year: 2021

description: Uma breve revisão do monitoramento dos sintomas motores da doença de Parkinson utilizando dispositivos vestíveis
The drug court : A miracle or the healer's hand?
Creators: name: Webb, Suzanne Nicola
Publisher: name: University of British Columbia
Year: 2009

description: The subject of this thesis is criminal justice sentencing policy. The thesis examines the role of the Drug Court in diverting drug dependent offenders from the conventional Criminal Justice System. A large percentage of convicted offenders have a drug addiction problem and such offenders impose staggering burdens on an already overwhelmed Criminal Justice System. Diversion programs offer a practicable alternative to the traditional court system, and this thesis will investigate the feasibility of a Drug Court in Vancouver, British Columbia, Canada. In examining the advantages and disadvantages of this method of sentencing, the thesis assesses the value of compulsory treatment and determines whether criminal justice sanctions should incorporate compulsory treatment initiatives. To aid in this analysis, additional diversion programs for drug addicted offenders are examined. The Drug Court is assessed through a comparison of the court with traditional sentencing principles. This thesis analyses the success of the Drug Court in other jurisdictions and looks at how the Drug Court deals with the sociological and environmental factors linked to drug abuse and criminality. In determining whether a Drug Court is a feasible option for Vancouver, the thesis examines these external crimogenic factors and the strategies undertaken by the City to combat drug-related crime. It is argued that the conventional criminal justice system provides little, if any, progressive and pro-active drug abuse intervention. This thesis concludes that Vancouver should implement a Drug Court to divert offenders from the traditional court system, and argues that the Drug Court diversion program should be available for drug-dependent property offenders. It identifies how the court can operate alongside pre-existing community services to ensure that post-release environmental conditions are conducive to drug abstinence and legitimate activity. In recommending adoption of the drug court program, the thesis stresses the importance of making this diversion scheme part of a community-based, long-term, holistic intervention strategy. The thesis ends with practical suggestions for implementation of a Drug Court program in Vancouver.
Diffuse reflection of a Bose-Einstein condensate from a rough evanescent wave mirror
Creators: name: Perrin, Helene
name: Colombe, Yves
name: Mercier, Brigitte
name: Lorent, Vincent
name: Henkel, Carsten
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present experimental results showing the diffuse reflection of a Bose-Einstein condensate from a rough mirror, consisting of a dielectric substrate supporting a blue-detuned evanescent wave. The scattering is anisotropic, more pronounced in the direction of the surface propagation of the evanescent wave. These results agree very well with theoretical predictions.
description: submitted to J Phys B, 10 pages, 6 figures
A new high-precision strong lensing model of the galaxy cluster MACS J0416.1-2403
Creators: name: Bergamini, Pietro
name: Rosati, Piero
name: Vanzella, Eros
name: Caminha, Gabriel Bartosch
name: Grillo, Claudio
name: Mercurio, Amata
name: Meneghetti, Massimo
name: Angora, Giuseppe
name: Calura, Francesco
name: Nonino, Mario
name: Tozzi, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new high-precision parametric strong lensing model of the galaxy cluster MACS J0416.1-2403, at z=0.396, which takes advantage of the MUSE Deep Lensed Field (MDLF), with 17.1h integration in the northeast region of the cluster, and Hubble Frontier Fields data. We spectroscopically identify 182 multiple images from 48 background sources at 0.9
description: 15 pages, 15 figures. Accepted for publication in Astronomy & Astrophysics (A&A). Lens models are available at www.fe.infn.it/astro/lensing
Synthesis and chemical investigation of Sg(CO)$_6$
Creators: name: Even, J.
name: Yakushev, A.
name: Düllmann, C. E.
name: Haba, H.
name: Asai, M.
name: Sato, T. K.
name: Brand, H.
name: Di Nitto, A.
name: Eichler, R.
name: Fan, F. L.
name: Hartmann, Willi
name: Huang, M.
name: Jäger, E.
name: Kaji, D.
name: Kanaya, J.
name: Kaneya, Y.
name: Khuyagbaatar, J.
name: Kindler, B.
name: Kratz, J. V.
name: Krier, J.
name: Kudou, Y.
name: Kurz, N.
name: Lommel, B.
name: Miyashita, S.
name: Morimoto, K.
name: Morita, K.
name: Murakami, M.
name: Nagame, Y.
name: Nietsche, H.
name: Ooe, K.
name: Qin, Z.
name: Schädel, M.
name: Steiner, J.
name: Sumita, T.
name: Takeyama, M.
name: Tanaka, K.
name: Toyoshima, A.
name: Tsukada, K.
name: Türler, A.
name: Usoltsev, I.
name: Wakabayashi, Y.
name: Wang, Y.
name: Wiehl, N.
name: Yamaki, S.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
5D Kaluza-Klein gravity: singularuty and freezing of $5^{th}$ dimension
Creators: name: Dzhunushaliev, Vladimir
name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Some reasonings are presented that the problem of a singularity in general relativity with the problem of freezing of the $5^{th}$ dimension can be connected. It is shown that some solutions in the 5D Kaluza-Klein gravity with the cross section in the Planck region have a region $(\approx l_{Pl})$ where the metric signature changes from $\{+,-,-,-,- \}$ to $\{-,-,-,-,+ \}$. The idea is discussed that such switching can not occur following some general point of view that the Planck length is the minimal length in the nature and consequently the physical quantities can not change very quickly in the course of this length. In this case the dynamic of the $G_{55}$ metric component should be frozen.
description: 10 pages
Online chemical study of Pb, Hg and Tl on SiO$_2$ and Au surfaces at TASCA
Creators: name: Lens, L.
name: Ballof, J.
name: Yakushev, A.
name: Düllmann, C. E.
name: Brand, H.
name: Derkx, X.
name: Di Nitto, A.
name: Even, J.
name: Hartmann, W.
name: Hessberger, Fritz-Peter
name: Hübner, A.
name: Jäger, E.
name: Jadambaa, Khuyagbaatar
name: Kindler, B.
name: Kratz, J. V.
name: Krier, J.
name: Kurz, N.
name: Lommel, B.
name: Mokry, C.
name: Runke, J.
name: Scharrer, P.
name: Schausten, B.
name: Steiner, J.
name: Thörle-Pospiech, P.
name: Wegrzecki, M.
name: Wiehl, N.
name: Yakusheva, V.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Stability of rotating scalar boson stars with nonlinear interactions
Creators: name: Siemonsen, Nils
name: East, William E.
Publisher: name: arXiv
Year: 2020
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: We study the stability of rotating scalar boson stars, comparing those made from a simple massive complex scalar (referred to as mini boson stars), to those with several different types of nonlinear interactions. To that end, we numerically evolve the nonlinear Einstein-Klein-Gordon equations in 3D, beginning with stationary boson star solutions. We show that the linear, non-axisymmetric instability found in mini boson stars with azimuthal number $m=1$ persists across the entire parameter space for these stars, though the timescale diverges in the Newtonian limit. Therefore, any boson star with $m=1$ that is sufficiently far into the non-relativistic regime, where the leading order mass term dominates, will be unstable, independent of the nonlinear scalar self-interactions. However, we do find regions of $m=1$ boson star parameter space where adding nonlinear interactions to the scalar potential quenches the non-axisymmetric instability, both on the non-relativistic, and the relativistic branches of solutions. We also consider select boson stars with $m=2$, finding instability in all cases. For the cases exhibiting instability, we follow the nonlinear development, finding a range of dynamics including fragmentation into multiple unbound non-rotating stars, and formation of binary black holes. Finally, we comment on the relationship between stability and criteria based on the rotating boson star's frequency in relation to that of a spherical boson star or the existence of a co-rotation point. The boson stars that we find not to exhibit instability when evolved for many dynamical times include rapidly rotating cases where the compactness is comparable to that of a black hole or neutron star.
description: 16 pages, 11 figures; revised to match PRD version
Hydrogen induced surface metallization of $β$-SiC(100)-($3\times 2$) revisited by DFT calculations
Creators: name: Di Felice, R.
name: Bertoni, C. M.
name: Pignedoli, C. A.
name: Catellani, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent experiments on the silicon terminated $3\times 2$ SiC(100) surface indicated an unexpected metallic character upon hydrogen adsorption. This effect was attributed to the bonding of hydrogen to a row of Si atoms and to the stabilization of a neighboring dangling bond row. Here, on the basis of Density-Functional calculations, we show that multiple-layer adsorption of H at the reconstructed surface is compatible with a different geometry: besides saturating the topmost Si dangling bonds, H atoms are adsorbed at rather unusual sites, \textit{i.e.} stable bridge positions above third-layer Si dimers. The results thus suggest an alternative interpretation for the electronic structure of the metallic surface
description: 10 pages, 3 figures. Higher resolution figures may be obtained from the authors (rosa@unimore.it). Submitted to Physical Review Letters in September 2004, resubmitted after revision in February 2005
ALBEGA: A decay spectroscopy setup for chemically separated samples
Creators: name: Di Nitto, A.
name: Yakushev, A.
name: Düllmann, C. E.
name: Khuyagbaatar, J.
name: Krier, J.
name: Ballof, J.
name: Bar, J.
name: Budzynski, T.
name: Cox, D. M.
name: Derkx, X.
name: Dormand, J.
name: Despotopulos, J. D.
name: Eberhardt, K.
name: Even, J.
name: Grabiec, P.
name: Harkness-Brennan, L.
name: Herzberg, R. D.
name: Hübner, A.
name: Jäger, E.
name: Judson, D.
name: Kindler, B.
name: Klos, H.
name: Kratz, J. V.
name: Kulawik, J.
name: Kurz, N.
name: Lens, L.
name: Lommel, B.
name: Moody, K.
name: Panas, A.
name: Prokaryn, P.
name: Rudolph, D.
name: Runke, J.
name: Rusanov, I.
name: Scharrer, P.
name: Schausten, B.
name: Shaughnessy, D.
name: Szmigiel, D.
name: Ward, A. J.
name: Wegrzecki, M.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Critical and tricritical singularities of the three-dimensional random-bond Potts model for large $q$
Creators: name: Mercaldo, M. T.
name: d'Auriac, J-Ch. Anglès
name: Iglói, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the effect of varying strength, $δ$, of bond randomness on the phase transition of the three-dimensional Potts model for large $q$. The cooperative behavior of the system is determined by large correlated domains in which the spins points into the same direction. These domains have a finite extent in the disordered phase. In the ordered phase there is a percolating cluster of correlated spins. For a sufficiently large disorder $δ>δ_t$ this percolating cluster coexists with a percolating cluster of non-correlated spins. Such a co-existence is only possible in more than two dimensions. We argue and check numerically that $δ_t$ is the tricritical disorder, which separates the first- and second-order transition regimes. The tricritical exponents are estimated as $β_t/ν_t=0.10(2)$ and $ν_t=0.67(4)$. We claim these exponents are $q$ independent, for sufficiently large $q$. In the second-order transition regime the critical exponents $β_t/ν_t=0.60(2)$ and $ν_t=0.73(1)$ are independent of the strength of disorder.
description: 12 pages, 11 figures
Black Hole Spin in X-ray Binaries: Giving Uncertainties an $f$
Creators: name: Salvesen, Greg
name: Miller, Jonah M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The two established techniques for measuring black hole spin in X-ray binaries often yield conflicting results, which must be resolved before either method may be deemed robust. In practice, black hole spin measurements based on fitting the accretion disc continuum effectively do not marginalize over the colour correction factor $f_{\mathrm{col}}$. This factor parametrizes spectral hardening of the disc continuum by the disc atmosphere, whose true properties are poorly constrained. We incorporate reasonable systematic uncertainties in $f_{\mathrm{col}}$ into the eight (non-maximal) black hole spin measurements vetted by the disc continuum fitting community. In most cases, an $f_{\mathrm{col}}$ uncertainty of $\pm$0.2-0.3 dominates the black hole spin error budget. We go on to demonstrate that plausible departures in $f_{\mathrm{col}}$ values from those adopted by the disc continuum fitting practitioners can bring the discrepant black hole spins into agreement with those from iron line modeling. Systematic uncertainties in $f_{\mathrm{col}}$, such as the effects of strong magnetization, should be better understood before dismissing their potentially dominant impact on the black hole spin error budget.
description: Minor changes in proofs stage; Data and code are available on GitHub: https://github.com/gregsalvesen/bhspinf
A class of gradings of simple Lie algebras
Creators: name: Baur, Karin
name: Wallach, Nolan R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: In this paper we give a classification of parabolic subalgebras of simple Lie algebras over $\mathbb{C}$ that satisfy two properties. The first property is Lynch's sufficient condition for the vanishing of certain Lie algebra cohomology spaces for generalized Whittaker modules associated with the parabolic subalgebra and the second is that the moment map of the cotangent bundle of the corresponding generalized flag variety be birational onto its image. We will call this condition the moment map condition.
description: 13 pages. To appear in the Proceedings of the Conference on Lie Algebras, Vertex Operator Algebras and Their Applications
Forum on Robert B. Pippin, "After the beautiful"
Creators: name: With R.B. Pippin, M. Farina, F. Campana, F. Iannelli, T. Pinkard, I. Testa, L. Corti, Ed. By M. Farina,
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 1970

description: ___
description: Lebenswelt. Aesthetics and philosophy of experience., No 7 (2015)
Lattice Realizations of the Open Descendants of Twisted Boundary Conditions for sl(2) A-D-E Models
Creators: name: Chui, C. H. Otto
name: Pearce, Paul A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The twisted boundary conditions and associated partition functions of the conformal sl(2) A-D-E models are studied on the Klein bottle and the Möbius strip. The A-D-E minimal lattice models give realization to the complete classification of the open descendants of the sl(2) minimal theories. We construct the transfer matrices of these lattice models that are consistent with non-orientable geometries. In particular, we show that in order to realize all the Klein bottle amplitudes of different crosscap states, not only the topological flip on the lattice but also the involution in the spin configuration space must be taken into account. This involution is the $Z_2$ symmetry of the Dynkin diagrams which corresponds to the simple current of the Ocneanu algebra.
description: 31 pages. Submitted to JSTAT
Does the Heisenberg uncertainty principle apply along the time dimension?
Creators: name: Ashmead, John
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Does the Heisenberg uncertainty principle (HUP) apply along the time dimension in the same way it applies along the three space dimensions? Relativity says it should; current practice says no. With recent advances in measurement at the attosecond scale it is now possible to decide this question experimentally. The most direct test is to measure the time-of-arrival of a quantum particle: if the HUP applies in time, then the dispersion in the time-of-arrival will be measurably increased. We develop an appropriate metric of time-of-arrival in the standard case; extend this to include the case where there is uncertainty in time; then compare. There is -- as expected -- increased uncertainty in the time-of-arrival if the HUP applies along the time axis. The results are fully constrained by Lorentz covariance, therefore uniquely defined, therefore falsifiable. So we have an experimental question on our hands. Any definite resolution would have significant implications with respect to the role of time in quantum mechanics and relativity. A positive result would also have significant practical applications in the areas of quantum communication, attosecond physics (e.g. protein folding), and quantum computing.
description: Presented as a talk at International Association for Relativistic Dynamics 2020 Conference; accepted for Journal of Physics: Conference Series: Proceedings of IARD 2020. 38 pages, 7 figures, 94 references. This is third revision, revised in response to reviewer comments
Kant e la 'scuola di Gottinga'. Alcune note a margine della 'tesi Lenoir'
Creators: name: Gambarotto, Andrea
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 1970

description: The paper focuses on the reception of Kant’s philosophy of biology in the context of the so-called ‘Göttingen School’. Timothy Lenoir has tried to rehabilitate the framework elaborated at Göttingen by stressing its difference from Naturphilosophie. Focusing on the work of Karl Friedrich Kielmeyer this paper argues that Lenoir’s position is based on a historiographical bias. I take into account Kielmeyer’s stance on physiology, embryology and natural history. This analysis reveals the existence of a clear shift from a regulative to a constitutive understanding of teleology. I agree with Zammito that the ‘Lenoir thesis’ should be overcome in favor of  a more accurate narrative of the emergence of biology in Germany at the turn of the nineteenth century.
description: Lebenswelt. Aesthetics and philosophy of experience., No 7 (2015)
Inelastic cotunneling induced decoherence and relaxation, charge and spin currents in an interacting quantum dot under a magnetic field
Creators: name: Dong, Bing
name: Horing, Norman J. M.
name: Cui, H. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theoretical analysis of several aspects of nonequilibirum cotunneling through a strong Coulomb-blockaded quantum dot (QD) subject to a finite magnetic field in the weak coupling limit. We carry this out by developing a generic quantum Heisenberg-Langevin equation approach leading to a set of Bloch dynamical equations which describe the nonequilibrium cotunneling in a convenient and compact way. These equations describe the time evolution of the spin variables of the QD explicitly in terms of the response and correlation functions of the free reservoir variables. This scheme not only provides analytical expressions for the relaxation and decoherence of the localized spin induced by cotunneling, but it also facilitates evaluations of the nonequilibrium magnetization, the charge current, and the spin current at arbitrary bias-voltage, magnetic field, and temperature. We find that all cotunneling events produce decoherence, but relaxation stems only from {\em inelastic} spin-flip cotunneling processes. Moreover, our specific calculations show that cotunneling processes involving electron transfer (both spin-flip and non-spin-flip) contribute to charge current, while spin-flip cotunneling processes are required to produce a net spin current in the asymmetric coupling case. We also point out that under the influence of a nonzero magnetic field, spin-flip cotunneling is an energy-consuming process requiring a sufficiently strong external bias-voltage for activation, explaining the behavior of differential conductance at low temperature: in particular, the splitting of the zero-bias anomaly in the charge current and a broad zero-magnitude "window" of differential conductance for the spin current near zero-bias-voltage.
description: 15 pages, 5 figures, published version, to appear in Phys. Rev. B
Quantum frequency conversion based on resonant four-wave mixing
Creators: name: Cheng, Chin-Yao
name: Lee, Jia-Juan
name: Liu, Zi-Yu
name: Shiu, Jiun-Shiuan
name: Chen, Yong-Fan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum frequency conversion (QFC), a critical technology in photonic quantum information science, requires that the quantum characteristics of the frequency-converted photon must be the same as the input photon except for the color. In nonlinear optics, the wave mixing effect far away from the resonance condition is often used to realize QFC because it can prevent the vacuum field reservoir from destroying the quantum state of the converted photon effectively. Under conditions far away from resonance, experiments typically require strong pump light to generate large nonlinear interactions to achieve high-efficiency QFC. However, strong pump light often generates additional noise photons through spontaneous Raman or parametric conversion processes. Herein, we theoretically study another efficient QFC scheme based on a resonant four-wave mixing system. Due to the effect of electromagnetically induced transparency (EIT), this resonant QFC scheme can greatly suppress vacuum field noise at low light levels; consequently, the converted photon can inherit the quantum state of the input photon with high fidelity. Our research demonstrates that if the conversion efficiency of the EIT-based QFC is close to 100%, the wave function and quadrature variance of the converted photon are almost the same as the input probe photon.
description: 17 pages, 4 figures, references added, figures are slightly modified, results unchanged
Supersymmetric version of a hydrodynamic system in Riemann invariants and its solutions
Creators: name: Grundland, A. M.
name: Hariton, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, a supersymmetric extension of a system of hydrodynamic type equations involving Riemann invariants is formulated in terms of a superspace and superfield formalism. The symmetry properties of both the classical and supersymmetric versions of this hydrodynamical model are analyzed through the use of group-theoretical methods applied to partial differential equations involving both bosonic and fermionic variables. More specifically, we compute the Lie superalgebras of both models and perform classifications of their respective subalgebras. A systematic use of the subalgebra structures allow us to construct several classes of invariant solutions, including travelling waves, centered waves and solutions involving monomials, exponentials and radicals.
description: 30 pages
Erweiterung des Kantismus, Umgestaltung der Metaphysik. Il giovane Viktor von Weizsäcker lettore di Kant
Creators: name: Tedesco, Salvatore
Publisher: name: Lebenswelt. Aesthetics and philosophy of experience.
Year: 1970

description: This paper aims to examine the relationships between the research of young Viktor von Weizsäcker and Kant’s critical thinking. Starting from the criticism of Driesch’s Neovitalism, here are considered some of the major contributions of Weizsacker in the years 1911-1926, in order to show its path between criticism of knowledge, metaphysics, construction of a biology and a medical anthropology.
description: Lebenswelt. Aesthetics and philosophy of experience., No 7 (2015)
The structure of reversing symmetry groups
Creators: name: Baake, Michael
name: Roberts, John A. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37C80

description: We present some of the group theoretic properties of reversing symmetry groups, and classify their structure in simple cases that occur frequently in several well-known groups of dynamical systems.
description: 12 pages
Much ado about (almost) nothing: the youth criminal justice act: paradigms & paradoxes within Canadian youth justice philosophy
Creators: name: Nielsen, Lene Spang Dyhrberg
Publisher: name: University of British Columbia
Year: 2009

description: The subject of this thesis is Canadian youth justice philosophy, and the paradigms and paradoxes within the youth criminal justice system. It focuses on the historical, socioeconomic, political and intellectual elements of the changes in Canadian youth justice philosophy. I will explore the reason behind the federal government's recent political initiative, the Youth Criminal Justice Act, and look into the question of whether the government's youth justice strategy will accomplish its objectives and make significant changes to the existing legislation and justice system in the context of young offenders. The purpose of the thesis is to delineate the development of Canadian youth justice philosophy and outline the changes in the developing process from a historical, political and intellectual perspective in order to understand the current regulatory framework. I describe and analyze the changes in youth justice philosophy using Thomas Kuhn's model of change in order to determine whether a paradigm shift has happened with the progression from the Juvenile Delinquents Act, to the Young Offenders Act to the Youth Criminal Justice Act. I go on to describe the principles and theories behind retributive and restorative justice philosophy, as it seems restorative principles might become more influential than they have been hitherto. I explore existing alternative measures within the restorative framework in Canada, such as mediation, family group conferences and circle sentencing. I argue that the federal government's intention to implement the new Act could be a step from retributive to restorative justice because of the government's promise of additional funding for restorative programs. My thesis is that the intended renewal of the youth justice system in Canada is a political response to a polarized public debate about youth crime. I argue that the Youth Criminal Justice Act is not a complete transformation of youth justice philosophy. My conclusion is that historical, political, intellectual and scientific changes in youth justice philosophy might have occurred in 1984 with the Young Offenders Act, but that the Youth Criminal Justice Act does not constitute a further advance.
Manifest Form of the Spin-Local Higher-Spin Vertex $Υ^{ηη}_{ωCCC}$
Creators: name: Gelfond, O. A.
name: Korybut, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Vasiliev generating system of higher-spin equations allowing to reconstruct nonlinear vertices of field equations for higher-spin gauge fields contains a free complex parameter $η$. Solving the generating system order by order one obtains physical vertices proportional to various powers of $η$ and $\barη$. Recently $η^2$ and $\barη^2$ vertices in the zero-form sector were presented in 2009.02811 in the $Z$-dominated form implying their spin-locality by virtue of $Z$-dominance Lemma of 1805.11941. However the vertex of 2009.02811 had the form of a sum of spin-local terms dependent on the auxiliary spinor variable $Z$ in the theory modulo so-called $Z$-dominated terms, providing a sort of existence theorem rather than explicit form of the vertex. The aim of this paper is to elaborate an approach allowing to systematically account for the effect of $Z$-dominated terms on the final $Z$-independent form of the vertex needed for any practical analysis. Namely, in this paper we obtain explicit $Z$-independent spin-local form for the vertex $Υ^{ηη}_{ωCCC}$ for its $ωCCC$-ordered part where $ω$ and $C$ denote gauge one-form and field strength zero-form higher-spin fields valued in an arbitrary associative algebra in which case the order of product factors in the vertex matters. The developed formalism is based on the Generalized Triangle identity derived in the paper and is applicable to all other orderings of the fields in the vertex.
description: LaTeX, 33 pages, no figures, V2: clarifications and references added, matches the published version
Phase distortion mechanisms in linear beam vacuum devices
Creators: name: Wöhlbier, J. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The mechanism for phase distortion in linear beam vacuum devices is identified in the simplest system that pertains to such devices, the force-free drifting electron beam. We show that the dominant cause of phase distortion in a force-free drifting beam is the inverse dependence of arrival time on velocity for an electron, i.e., the ``$1/u$ nonlinearity,'' and that a secondary cause of phase distortion is the nonlinearity of the velocity modulation. We claim that this is the mechanism for phase distortion in all linear beam vacuum devices, and provide evidence from a traveling wave tube calculation. Finally, we discuss the force-free drifting beam example in the context of the "self-intermodulation" description of phase distortion recently described in Refs. [J. Wöhlbier and J. Booske, Phys. Rev. E, vol. 69, 2004, 066502], [J. Wöhlbier and J. Booske, IEEE Trans. Elec. Devices, To appear.]
description: 11 pages, 6 figures. Submitted to IEEE Trans. Plasma Sci