cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-Gaussian pure states and positive Wigner functions
Creators: name: Corney, J. F.
name: Olsen, M. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Gaussian correlations in a pure state are inextricably linked with non-classical features, such as a non positive-definite Wigner function. In a commonly used simulation technique in ultracold atoms and quantum optics, known as the truncated Wigner method, the quantum dynamics is mapped to stochastic trajectories in phase space, governed by a positive approximation to the true Wigner distribution. The question thus arises: how accurate is this approach in predicting truly non-classical behaviour? In this article, we benchmark the ability of the truncated Wigner phase-space method to reproduce the non-Gaussian statistics of the single mode anharmonic oscillator. We find that the this method can reliably predict departures from Gaussian statistics over a wide range of particle numbers, whereas the positive-P representation method, which is in principle exact, can suffer from divergent instabilities. The truncated Wigner function, furthermore, is able to reproduce the non-Gaussian correlations while satisfying the condition for purity.
description: Corrected the rather obvious typos in Eqs (9)-(10). Expanded discussion on +P, sampling error and related issues. To appear in Phys. Rev. A
Additional file 1 of Immune molecular profiling of a multiresistant primary prostate cancer with a neuroendocrine-like phenotype: a case report
Creators: name: Williams, Scott G.
name: Yeang, Han Xian Aw
name: Mitchell, Catherine
name: Caramia, Franco
name: Byrne, David J.
name: Fox, Stephen B.
name: Haupt, Sue
name: Schittenhelm, Ralf B.
name: Neeson, Paul J.
name: Ygal Haupt
name: Keam, Simon P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. Supplementary methods for tissue collection, histology and staining, immune profiling, molecular characterization, genomic profiling, and bioinformatic approaches.
Massive and massless modes of the triplet phase of neutron matter
Creators: name: Sen, S.
name: Nicholson, A.N.
name: Bedaque, P.F.
Publisher: name: American Physical Society
Year: 2015

description: Neutron matter at densities on the order of the nuclear saturation density is believed to have neutrons paired in the P23 channel. We study the low-lying modes of this phase and find two massless modes (angulons), resulting from the spontaneous breaking of rotational symmetry as well as three other gapped modes. We compute their masses at arbitrary temperatures. © 2015 American Physical Society.
The Penrose singularity theorem in regularity $C^{1,1}$
Creators: name: Kunzinger, Michael
name: Steinbauer, Roland
name: Vickers, James A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83C75, 53B30

description: We extend the validity of the Penrose singularity theorem to spacetime metrics of regularity $C^{1,1}$. The proof is based on regularisation techniques, combined with recent results in low regularity causality theory.
description: 13 pages. Final version
Baryon properties in meson mediums from lattice QCD
Creators: name: Detmold, W.
name: Nicholson, A.N.
Publisher: name: Proceedings of Science (PoS)
Year: 2013

description: We present results for the ground-state mass shifts of octet baryons due to the presence of a medium of pions or kaons from a lattice QCD calculation performed at a single value of the quark mass, corresponding to a pion mass of mpΠ ∼390 MeV, and a spatial volume V ∼(4fm)3. We use a canonical approach in which correlators are formed using a single baryon propagator and a fixed number of meson propagators, up to n = 9. From the ground-state energies we calculate twoand three-body interaction parameters. We also extract combinations of low-energy constants by comparing our results to tree level chiral perturbation theory at non-zero isospin/kaon chemical potential.
MOCKA — A PLATO mock asteroseismic catalogue of intermediate to massive stars
Creators: name: Jannsen, Nicholas
Publisher: name: Zenodo
Year: 2024

description: With ESA’s PLATO space mission set for launch in December 2026, a new photometric legacy and a future of new scientific discoveries awaits. By exploring scientific topics distinct from the Core Science programme, the scientific component coined the PLATO Complementary Science programme (PLATO-CS) provides a unique opportunity to maximise the scientific yield of the mission. PLATO-CS will be available to researchers worldwide through a Guest Observer (GO) programme. In this oral contribution, we highlight PLATO’s potential regarding the topic of pulsating stars across the HR diagram outside the Core programme. Specifically, a PLATO mock asteroseismic catalogue (MOCKA) of intermediate to massive stars will be presented as a first benchmark to quantitatively highlight the potential of PLATO-CS. MOCKA is based on a magnitude-limited (G < 17) Gaia catalogue and is a product of realistic end-to-end PlatoSim simulations of stars from the first (minimum 2-year duration; southern hemisphere) pointing field of PLATO. We will provide a detailed discussion of the oscillation mode detectability for gravity-mode pulsators, whose pulsations primarily trace the radiative region near the convective core boundary, thus making them unique stellar laboratories to study internal structure and evolution. Prior to mission launch, activities like MOCKA help us understand the limits of the mission as well as highlight the opportunities to push astrophysics beyond current stellar models.
Entanglement entropy across a deformed sphere
Creators: name: Mezei, Márk
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: I study the entanglement entropy (EE) across a deformed sphere in conformal field theories (CFTs). I show that the sphere (locally) minimizes the universal term in EE among all shapes. In arXiv:1407.7249 it was derived that the sphere is a local extremum, by showing that the contribution linear in the deformation parameter is absent. In this paper I demonstrate that the quadratic contribution is positive and is controlled by the coefficient of the stress tensor two point function, $C_T$. Such a minimization result contextualizes the fruitful relation between the EE of a sphere and the number of degrees of freedom in field theory. I work with CFTs with gravitational duals, where all higher curvature couplings are turned on. These couplings parametrize conformal structures in stress tensor $n$-point functions, hence I show the result for infinitely many CFT examples.
description: 20 pages, 1 figure; v2: references added, typos fixed
Elucidating the sign problem through noise distributions
Creators: name: Kaplan, D.B.
name: Nicholson, A.N.
name: Grabowska, D.
Publisher: name: Institute of Physics Publishing
Year: 2013

description: Due to the presence of light pions in the theory, lattice QCD at finite densities suffers from issues with noise in both grand canonical and canonical formulations. We study two different formulations of the Nambu-Jona-Lasinio model reduced to 2+1 dimensions at large N, where N is the number of flavors. At finite chemical potential one formulation has a severe sign problem and a fermion correlator which displays a broad probability distribution with small mean. In the other we find no sign problem and a distribution amenable to the cumulant expansion techniques developed in Ref. [1, 2, 3]. © Published under licence by IOP Publishing Ltd.
Distinguishing Di-jet Resonances at the LHC
Creators: name: Chivukula, R. Sekhar
name: Simmons, Elizabeth H.
name: Vignaroli, Natascia
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Anticipating that a di-jet resonance could be discovered at the 14 TeV LHC, we present two different strategies to reveal the nature of such a particle; in particular to discern whether it is a quark-antiquark (qqbar), quark-gluon (qg), or gluon-gluon (gg) resonance. The first method relies on the color discriminant variable, which can be calculated at the LHC from the measurements of the di-jet signal cross section, the resonance mass and the resonance width. Including estimated statistical uncertainties and experimental resolution, we show that a qg excited quark resonance can be efficiently distinguished from either a qqbar coloron or a gg color-octet scalar using the color discriminant variable at LHC-14. The second strategy is based on the study of the energy profiles of the two leading jets in the di-jet channel. Including statistical uncertainties in the signal and the QCD backgrounds, we show that one can distinguish, in a model-independent way, between gg, qg, and qqbar resonances; an evaluation of systematic uncertainties in the measurement of the jet energy profile will require a detailed detector study once sufficient 14 TeV di-jet data is in hand.
description: 25 pages, 17 figures; references added. Minor clarifications and footnote(s) added, based on referee suggestions
Baryon masses at nonzero isospin/kaon density
Creators: name: Nicholson, A.N.
name: Detmold, W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We present a lattice QCD calculation of the ground-state energy shifts of various baryons in a medium of pions or kaons at a single value of the quark mass corresponding to a pion mass of mπ∼390 MeV and a kaon mass of mK∼540 MeV, and in a spatial volume V∼(4 fm)3. All systems are created using a canonical formalism in which quark propagators are contracted into correlation functions of fixed isospin/kaon density. We study four different systems, Σ+(π+)n, Ξ0(π+)n, p(K+)n, and n(K+)n, for up to n=11 mesons. From the ground-state energy shifts we extract two- and three-body scattering parameters, as well as linear combinations of low-energy constants appearing in tree-level chiral perturbation theory. © 2013 American Physical Society.
Additional file 3 of Association between obesity, common chronic diseases and health promoting lifestyle profiles in Hong Kong adults: a cross-sectional study
Creators: name: Leung, Yan Sin
name: Lee, Jack Jock Wai
name: Lai, Maria Ming Po
name: Chole Kei Ming Kwok
name: Chong, Ka Chun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Cancer

description: Additional file 3. Quadratic effect of the Stress Management score predicting WHR. The curve estimation showed an inverted U-shaped relationship between stress management and WHR. As the WHR increased, the stress management score increased; beyond a WHR of approximately 0.9, the borderline of normal weight, an increase in WHR was associated with a reduction in the stress management score.
Maximally genuine multipartite entangled mixed X-states of N-qubits
Creators: name: Mendonca, Paulo E. M. F.
name: Rafsanjani, Seyed Mohammad Hashemi
name: Galetti, Diógenes
name: Marchiolli, Marcelo A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For every possible spectrum of $2^N$-dimensional density operators, we construct an $N$-qubit X-state of same spectrum and maximal genuine multipartite (GM-) concurrence, hence characterizing a global unitary transformation that --- constrained to output X-states --- maximizes the GM-concurrence of an arbitrary input mixed state of $N$ qubits. We also apply semidefinite programming methods to obtain $N$-qubit X-states with maximal GM-concurrence for a given purity and to provide an alternative proof of optimality of a recently proposed set of density matrices for the role, the so-called X-MEMS. Furthermore, we introduce a numerical strategy to tailor a quantum operation that converts between any two given density matrices using a relatively small number of Kraus operators. We apply our strategy to design short operator-sum representations for the transformation between any given $N$-qubit mixed state and a corresponding X-MEMS of same purity.
description: 22 pages, 2 figures. v2 (published version): connection with "biseparability from spectrum" dropped from the concluding remarks since, in the last paragraph os Sec. 3, an argument was included to demonstrate that N-qubit X-MEMS are generally not N-qubit MEMS
Sign problems, noise, and chiral symmetry breaking in a QCD-like theory
Creators: name: Kaplan, D.B.
name: Grabowska, D.
name: Nicholson, A.N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: The Nambu-Jona-Lasinio model reduced to 2+1 dimensions has two different path integral formulations: at finite chemical potential one formulation has a severe sign problem similar to that found in QCD, while the other does not. At large N, where N is the number of flavors, one can compute the probability distributions of fermion correlators analytically in both formulations. In the former case one finds a broad distribution with small mean; in the latter one finds a heavy tailed positive distribution amenable to the cumulant expansion techniques developed in earlier work. We speculate on the implications of this model for QCD. © 2013 American Physical Society.
Maxwell's equal-area law for Gauss-Bonnet Anti-de Sitter black holes
Creators: name: Belhaj, A.
name: Chabab, M.
name: Moumni, H. El
name: Masmar, K.
name: Sedra, M. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Interpreting the cosmological constant Λas a thermodynamic pressure and its conjugate quantity as a thermodynamic volume, we study the Maxwell's equal area law of higher dimensional Gauss-Bonnet-AdS black holes in extended phase space. These black hole solutions critically behave like Van der Waals systems. It has been realized that below the critical temperature T_c the stable equilibrium is violated. We show through calculations that the critical behaviors for the uncharged black holes only appear in d=5. For the charged case, we analyse solutions in d = 5 and d = 6 separately and find that, up to some constrains, the critical behaviors only appear in the spherical topology. Using the Maxwell's construction, we also find the isobar line for which the liquid-gas-like phases coexist.
description: 18 pages, 4 figures, latex. References added and typos corrected. Minor changes. Final version accepted in European Physical Journal C
Lattice Monte Carlo calculations for unitary fermions in a finite box
Creators: name: Kaplan, D.B.
name: Endres, M.G.
name: Nicholson, A.N.
name: Lee, J.-W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We perform lattice Monte Carlo simulations for up to 66 unitary fermions in a finite box using a highly improved lattice action for nonrelativistic spin-12 fermions. We obtain a value of 0.366-0.011+0.016 for the Bertsch parameter, defined as the energy of the unitary Fermi gas measured in units of the free gas energy in the thermodynamic limit. In addition, for up to four unitary fermions, we compute the spectrum of the lattice theory by exact diagonalization of the transfer matrix projected onto irreducible representations of the octahedral group for small to moderate size lattices, providing an independent check of our few-body simulation results. We compare our exact numerical and simulation results for the spectrum to benchmark studies of other research groups as well as perform an extended analysis of our lattice action improvement scheme, including an analysis of the errors associated with higher partial waves and finite temporal discretization.
Low lying modes of triplet-condensed neutron matter and their effective theory
Creators: name: Bedaque, P.F.
name: Nicholson, A.N.
Publisher: name: American Physical Society
Year: 2013

description: The condensation of neutrons into a 3P2 superfluid phase occurs at densities relevant for the interior of neutron stars. The triplet pairing breaks rotational symmetry spontaneously and leads to the existence of gapless modes (angulons) that are relevant for many transport coefficients and to the star's cooling properties. We derive the leading terms of the low-energy effective field theory, including the leading coupling to electroweak currents, valid for a variety of possible 3P2 phases.
Das II. Vatikanum - Kontinuität oder Diskontinuität?
Creators: name: Wassilowsky, Günther
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 34 Nr. 6 (2005): Internationale katholische Zeitschrift Communio, Band 34, Heft 6
Integrability and MHV diagrams in N=4 supersymmetric Yang-Mills theory
Creators: name: Brandhuber, Andreas
name: Penante, Brenda
name: Travaglini, Gabriele
name: Young, Donovan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply MHV diagrams to the derivation of the one-loop dilatation operator of N=4 super Yang-Mills in the SO(6) sector. We find that in this approach the calculation reduces to the evaluation of a single MHV diagram in dimensional regularisation. This provides the first application of MHV diagrams to an off-shell quantity. We also discuss other applications of the method and future directions.
description: 1+8 pages. v2: one reference added, minor changes, version accepted for publication in PRL
Ab-initio multimode linewidth theory for arbitrary inhomogeneous laser cavities
Creators: name: Pick, Adi
name: Cerjan, Alex
name: Liu, David
name: Rodriguez, Alejandro W.
name: Stone, A. Douglas
name: Chong, Yidong D.
name: Johnson, Steven G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a multimode laser-linewidth theory for arbitrary cavity structures and geometries that contains nearly all previously known effects and also finds new nonlinear and multimode corrections, e.g. a bad-cavity correction to the Henry $α$ factor and a multimode Schawlow--Townes relation (each linewidth is proportional to a sum of inverse powers of all lasing modes). Our theory produces a quantitatively accurate formula for the linewidth, with no free parameters, including the full spatial degrees of freedom of the system. Starting with the Maxwell--Bloch equations, we handle quantum and thermal noise by introducing random currents whose correlations are given by the fluctuation--dissipation theorem. We derive coupled-mode equations for the lasing-mode amplitudes and obtain a formula for the linewidths in terms of simple integrals over the steady-state lasing modes.
description: 24 pages, 7 figures
Electric Fields and Chiral Magnetic Effect in Cu + Au Collisions
Creators: name: Deng, Wei-Tian
name: Huang, Xu-Guang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The non-central Cu + Au collisions can create strong out-of-plane magnetic fields and in-plane electric fields. By using the HIJING model, we study the general properties of the electromagnetic fields in Cu + Au collisions at 200 GeV and their impacts on the charge-dependent two-particle correlator $γ_{q_1q_2}=$ (see main text for definition) which was used for the detection of the chiral magnetic effect (CME). Compared with Au + Au collisions, we find that the in-plane electric fields in Cu + Au collisions can strongly suppress the two-particle correlator or even reverse its sign if the lifetime of the electric fields is long. Combining with the expectation that if $γ_{q_1q_2}$ is induced by elliptic-flow driven effects we would not see such strong suppression or reversion, our results suggest to use Cu + Au collisions to test CME and understand the mechanisms that underlie $γ_{q_1q_2}$.
description: V1: 7 pages, 8 figures. V2: Add 2 new figures. Published version
N-body Efimov states from two-particle noise
Creators: name: Nicholson, A.N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The ground state energies of universal N-body clusters tied to Efimov trimers, for N even, are shown to be encapsulated in the statistical distribution of two particles interacting with a background auxiliary field at large Euclidean time when the interaction is tuned to the unitary point. Numerical evidence that this distribution is log normal is presented, allowing one to predict the ground state energies of the N-body system.
Additional file 1 of Understanding the uptake of a clinical innovation for osteoarthritis in primary care: a qualitative study of knowledge mobilisation using the i-PARIHS framework
Creators: name: Swaithes, Laura
name: Krysia Dziedzic
name: Finney, Andrew
name: Cottrell, Elizabeth
name: Jinks, Clare
name: Mallen, Christian
name: Currie, Graeme
name: Paskins, Zoe
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1:. Interview Topic Guide
Extended study for unitary fermions on a lattice using the cumulant expansion technique
Creators: name: Lee, J.-W.
name: Nicholson, A.N.
name: Endres, M.G.
name: Kaplan, D.B.
Publisher: name: Sissa Medialab Srl
Year: 2011

description: A recently developed lattice method for large numbers of strongly interacting nonrelativistic fermions exhibits a heavy tail in the distributions of correlators for large Euclidean time τ and large number of fermions N, which only allows the measurement of ground state energies for a limited number of fermions using standard techniques. In such cases, it is suggested that measuring the log of the correlator is more efficient, and a cumulant expansion of this quantity can be exactly related to the correlation function. The cumulant expansion technique allows us to determine the ground state energies of up to 66 unpolarized unitary fermions on lattices as large as 72 × 143, and up to 70 unpolarized unitary fermions trapped in a harmonic potential on lattices as large as 72 × 643. We have also improved our lattice action with a Galilean invariant form for the four-fermion interaction, which results in predictive volume scaling of the lowest energy of three fermions in a periodic box and in good agreement of our results for N ≤ 6 trapped unitary fermions with those from other benchmark calculations.
Flux Phase in Bilayer $t-J$ Model: Time-Reversal Symmetry Breaking Surface State without Spontaneous Magnetic Field
Creators: name: Kuboki, Kazuhiro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study surface states of high-$T_C$ cuprate superconductor YBCO using the bilayer $t-J$ model. Calculations based on the Bogoliubov de Gennes method show that a flux phase that breaks time-reversal symmetry (${\cal T}$) may arise near a (110) surface where the $d_{x^2-y^2}$-wave superconductivity is strongly suppressed. It is found that the flux phase in which spontaneous magnetic fields in two layers have opposite directions may be stabilized in a wide region of doping rate, and split peaks in the local density of states appear. Near the surface, spontaneous magnetic field may not be observed experimentally, because the contributions from two layers essentially cancel out. This may explain the absence of local magnetic filed near the (110) surface of YBCO, for which the sign of ${\cal T}$ violation has been detected.
description: 11 pages, 7 figures
Zum vierzigsten Jahrestag von Nostra Aetate
Creators: name: Lustiger, Jean-Marie
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 34 Nr. 6 (2005): Internationale katholische Zeitschrift Communio, Band 34, Heft 6
Higgsino Dark Matter in Nonuniversal Gaugino Mass Models
Creators: name: Chakraborti, Manimala
name: Chattopadhyay, Utpal
name: Rao, Soumya
name: Roy, D. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study two simple and well motivated nonuniversal gaugino mass models, which predict higgsino dark matter. One can account for the observed dark matter relic density along with the observed Higgs boson mass of ~ 125 GeV over a large region of the parameter space of each model, corresponding to higgsino mass of ~ 1 TeV. In each case this parameter region covers the gluino mass range of 2-3 TeV, parts of which can be probed by the 14 TeV LHC experiments. We study these model predictions for LHC in brief and for dark matter detection experiments in greater detail.
description: 35 pages, 11 figures, pdflatex, new references and a few relevant decay branching ratios added in two tables. Version to appear in Phys Rev D
Listening to noise
Creators: name: Endres, M.G.
name: Kaplan, D.B.
name: Nicholson, A.N.
name: Lee, J.-W.
Publisher: name: Sissa Medialab Srl
Year: 2011

description: We show how sign problems in simulations of many-body systems can manifest themselves in the form of heavy-tailed correlator distributions, similar to what is seen in electron propagation through disordered media. We propose an alternative statistical approach for extracting ground state energies in such systems, illustrating the method with a toy model and with lattice data for unitary fermions.
Lattice Monte Carlo calculations for unitary fermions in a harmonic trap
Creators: name: Endres, M.G.
name: Kaplan, D.B.
name: Lee, J.-W.
name: Nicholson, A.N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We present a lattice Monte Carlo approach developed for studying large numbers of strongly interacting nonrelativistic fermions and apply it to a dilute gas of unitary fermions confined to a harmonic trap. In place of importance sampling, our approach makes use of high statistics, an improved action, and recently proposed statistical techniques. We show how improvement of the lattice action can remove discretization and finite volume errors systematically. For N=3 unitary fermions in a box, our errors in the energy scale as the inverse lattice volume, and we reproduce a previous high-precision benchmark calculation to within our 0.3% uncertainty; as additional benchmarks we reproduce precision calculations of N=3,...,6 unitary fermions in a harmonic trap to within our ∼1% uncertainty. We then use this action to determine the ground-state energies of up to 70 unpolarized fermions trapped in a harmonic potential on a lattice as large as 643×72. In contrast to variational calculations, we find evidence for persistent deviations from the thermodynamic limit for the range of N considered.
"Gaudium et Spes" wiedergelesen
Creators: name: Splett, Jörg
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 34 Nr. 6 (2005): Internationale katholische Zeitschrift Communio, Band 34, Heft 6
Statistics of the longest interval in renewal processes
Creators: name: Godreche, Claude
name: Majumdar, Satya N.
name: Schehr, Gregory
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider renewal processes where events, which can for instance be the zero crossings of a stochastic process, occur at random epochs of time. The intervals of time between events, $τ_{1},τ_{2},...$, are independent and identically distributed (i.i.d.) random variables with a common density $ρ(τ)$. Fixing the total observation time to $t$ induces a global constraint on the sum of these random intervals, which accordingly become interdependent. Here we focus on the largest interval among such a sequence on the fixed time interval $(0,t)$. Depending on how the last interval is treated, we consider three different situations, indexed by $α=$ I, II and III. We investigate the distribution of the longest interval $\ell^α_{\max}(t)$ and the probability $Q^α(t)$ that the last interval is the longest one. We show that if $ρ(τ)$ decays faster than $1/τ^2$ for large $τ$, then the full statistics of $\ell^α_{\max}(t)$ is given, in the large $t$ limit, by the standard theory of extreme value statistics for i.i.d. random variables, showing in particular that the global constraint on the intervals $τ_i$ does not play any role at large times in this case. However, if $ρ(τ)$ exhibits heavy tails, $ρ(τ)\simτ^{-1-θ}$ for large $τ$, with index $0
description: 30 pages, 9 figures, minor revisions
Additional file 1 of Significant transcriptomic changes are associated with differentiation of bone marrow-derived mesenchymal stem cells into neural progenitor-like cells in the presence of bFGF and EGF
Creators: name: Khan, Amir Ali
name: Tee Jong Huat
name: Mutery, Abdullah Al
name: El-Serafi, Ahmed Taher
name: Hassen Hadj Kacem
name: Sallam Hasan Abdallah
name: Reza, Muhammed Faruque
name: Jafri Malin Abdullah
name: Hasnan Jaafar
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Representative flow cytometry analysis of Sox2 expression by MSC-derived NPCs and MSCs in basal media. Figure S2. Representative flow cytometry analysis of Beta-3-tubulin expression of terminally differentiated NPCs into neurons.
Noise, sign problems, and statistics
Creators: name: Nicholson, A.N.
name: Endres, M.G.
name: Lee, J.-W.
name: Kaplan, D.B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We show how sign problems in simulations of many-body systems can manifest themselves in the form of heavy-tailed correlator distributions, similar to what is seen in electron propagation through disordered media. We propose an alternative statistical approach for extracting ground state energies in such systems, illustrating the method with a toy model and with lattice data for unitary fermions.
Die Kirche als allumfassendes Sakrament des Heils
Creators: name: Figura, Michael
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 34 Nr. 6 (2005): Internationale katholische Zeitschrift Communio, Band 34, Heft 6
Lattice study of trapped fermions at unitarity
Creators: name: Kaplan, D.B.
name: Nicholson, A.N.
name: Lee, J.-W.
name: Endres, M.G.
Publisher: name: Sissa Medialab Srl
Year: 2010

description: We present a lattice study of up to N = 20 unitary fermions confined to a harmonic trap. Our preliminary results show better than 1% agreement with high precision solutions to the many-body Schrodinger equation for up to N = 6. We are able to make predictions for larger N which were inaccessible by the Hamiltonian approach due to computational limitations. Harmonic traps are used experimentally to study cold atoms tuned to a Feshbach resonance. We show that they also provide certain benefits to numerical studies of many-body correlators on the lattice. In particular, we anticipate that the methods described here could be used for studying nuclear physics.
Adaptive modeling of shallow fully nonlinear gravity waves
Creators: name: Dutykh, Denys
name: Clamond, Didier
name: Mitsotakis, Dimitrios
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 74J15 (primary), 74S10, 74J30 (secondary)

description: This paper presents an extended version of the celebrated Serre-Green-Naghdi (SGN) system. This extension is based on the well-known Bona-Smith-Nwogu trick which aims to improve the linear dispersion properties. We show that in the fully nonlinear setting it results in modifying the vertical acceleration. Even if this technique is well-known, the effect of this modification on the nonlinear properties of the model is not clear. The first goal of this study is to shed some light on the properties of solitary waves, as the most important class of nonlinear permanent solutions. Then, we propose a simple adaptive strategy to choose the optimal value of the free parameter at every instance of time. This strategy is validated by comparing the model prediction with the reference solutions of the full Euler equations and its classical counterpart. Numerical simulations show that the new adaptive model provides a much better accuracy for the same computational complexity.
description: 19 pages, 8 figures, 2 tables, 45 references. Some typos were corrected. Other author's papers can be downloaded at http://www.denys-dutykh.com/
Top quark induced effective potential in a composite Higgs model
Creators: name: Golterman, Maarten
name: Shamir, Yigal
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider non-perturbative aspects of a composite Higgs model that serves as a prototype for physics beyond the Standard Model, in which a new strongly interacting sector undergoes chiral symmetry breaking, and generates the Higgs particle as a pseudo Nambu-Goldstone boson. In addition, the top quark couples linearly to baryons of the new strong sector, thereby becoming partially composite. We study the dynamics leading to the top quark Yukawa coupling as well as the top quark contribution to the effective potential for the Higgs, obtaining expressions for these couplings in terms of baryonic correlation functions in the underlying strongly interacting theory. We then show that a large-N limit exists in which the top quark contribution to the Higgs effective potential overcomes that of the weak gauge bosons, inducing electroweak symmetry breaking. The same large-N limit also suggests that the baryons that couple to the top quark may be relatively light. This composite Higgs model, and similar ones, can be studied on the lattice with the methods developed for lattice QCD.
description: Revtex, 28 pages, 3 figures. A few minor errors have been corrected
Lattice calculation for unitary fermions in a finite box
Creators: name: Endres, M.G.
name: Lee, J.-W.
name: Nicholson, A.N.
name: Kaplan, D.B.
Publisher: name: Sissa Medialab Srl
Year: 2010

description: A fundamental constant in systems of unitary fermions is the so-called Bertsch parameter, the ratio of the ground state energy for spin paired unitary fermions to that for free fermions at the same density. I discuss how we computed this parameter as well as the pairing gap using a recently developed lattice construction for unitary fermions, by measuring correlation functions for up to 38 fermions in a finite box. Our calculation illustrates interesting issues facing the study of many-body states on the lattice, which may eventually be confronted in QCD calculations as well.
Additional file 2 of Significant transcriptomic changes are associated with differentiation of bone marrow-derived mesenchymal stem cells into neural progenitor-like cells in the presence of bFGF and EGF
Creators: name: Khan, Amir Ali
name: Tee Jong Huat
name: Mutery, Abdullah Al
name: El-Serafi, Ahmed Taher
name: Hassen Hadj Kacem
name: Sallam Hasan Abdallah
name: Reza, Muhammed Faruque
name: Jafri Malin Abdullah
name: Hasnan Jaafar
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Read pre-processing, quality control, alignment, and gene quantification. Before differentiation expression analysis, raw reads were evaluated for quality check in terms of sequencing quality and potential contamination. Trimming was performed using BBDuk. Reads were aligned to the latest reference genome (rn6) with GTF from Ensembl (v99) using STAR aligner. Aligned reads were transformed into read count per gene using RSEM tool.
A new approach for studying large numbers of fermions in the unitary regime
Creators: name: Lee, J.-W.
name: Kaplan, D.B.
name: Endres, M.G.
name: Nicholson, A.N.
Publisher: name: Sissa Medialab Srl
Year: 2010

description: A novel lattice approach is presented for studying systems comprising a large number of interacting nonrelativistic fermions. The construction is ideally suited for numerical study of fermions near unitarity-a strongly coupled regime corresponding to the two-particle s-wave scattering phase shift δ0 = ≠/2. Such systems may be achieved experimentally with trapped atoms, and provide a starting point for an effective field theory description of nuclear physics. We discuss the construction of our lattice theory, which allows us to study systems of up to (but by no means limited to) 38 fermions with high accuracy and modest computational resources, and offer an overview of several applications of the technique. A more detailed discussion of applications and simulation results will be described in companion proceedings by A. N. N. and J-W. L.
State-selective all-optical detection of Rydberg atoms
Creators: name: Karlewski, Florian
name: Mack, Markus
name: Grimmel, Jens
name: Sándor, Nóra
name: Fortágh, and József
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present an all-optical protocol for detecting population in a selected Rydberg state of alkali atoms. The detection scheme is based on the interaction of an ensemble of ultracold atoms with two laser pulses: one weak probe pulse which is resonant with the transition between the ground state and the first excited state, and a pulse with high intensity which couples the first excited state to the selected Rydberg state. We show that by monitoring the absorption signal of the probe laser over time, one can deduce the initial population of the Rydberg state. Furthermore, it is shown that - for suitable experimental conditions - the dynamical absorption curve contains information on the initial coherence between the ground state and the selected Rydberg state. We present the results of a proof-of-principle measurement performed on a cold gas of $^{87}$Rb atoms. The method is expected to find application in quantum computing protocols based on Rydberg atoms.
Die Konzilspäpste Johannes XXIII. und Paul VI.
Creators: name: Conzemius, Victor
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 34 Nr. 6 (2005): Internationale katholische Zeitschrift Communio, Band 34, Heft 6
The Unity of Cosmological Attractors
Creators: name: Galante, Mario
name: Kallosh, Renata
name: Linde, Andrei
name: Roest, Diederik
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, several broad classes of inflationary models have been discovered whose cosmological predictions are stable with respect to significant modifications of the inflaton potential. Some classes of models are based on a non-minimal coupling to gravity. These models, which we will call $ξ$-attractors, describe universal cosmological attractors (including Higgs inflation) and induced inflation models. Another class describes conformal attractors (including Starobinsky inflation and T-models) and their generalization to $α$-attractors. The aim of this paper is to elucidate the common denominator of these models: their attractor properties stem from a pole of order two in the kinetic term of the inflaton field in the Einstein frame formulation, prior to switching to the canonical variables. We point out that $α$- and universal attractors differ in the subleading corrections to the kinetic term. As a final step towards unification of $ξ$ and $α$ attractors, we introduce a special class of $ξ$-attractors which is fully equivalent to $α$-attractors with the identification $α= 1+{1\over 6ξ}$. There is no theoretical lower bound on $r$ in this class of models.
description: 6 pages 1 figure, Refs + minor clarifications added
Reducing baryon noise in lattice QCD through partial quenching
Creators: name: Nicholson, A.N.
Publisher: name: American Physical Society
Year: 2009

description: The study of nuclear physics using lattice QCD is hindered by an exponentially large signal-to-noise problem that is conventionally alleviated by raising the quark masses to unphysically high values. We propose a novel form of partial quenching for calculations involving nucleons in which the sea quark masses are taken to be smaller than the valence quark masses. It is shown that lowering the sea quark masses toward their physical values actually improves signal-to-noise. An optimized approach to the physical point in the (ms, mv) plane is proposed, with a full analysis of the cost benefit. Improvements in computing time of ~102(A-1), where A is the number of nucleons in the system, are shown to be possible.
Reanalyzing previous-research's results, with BrainWays computer program
Creators: name: bartov, keshet
name: Itzhak, Omer
name: Wakeem, Eden
name: Elmahdy, Nader
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Social and Behavioral Sciences

description: This is our pre-registration for a course exploring the biological basis of empathy and prosocial behavior. The research plan and resultes appears in the attached file.
Additional file 2 of The importance of individual movement and feeding behaviour for long-distance seed dispersal by red deer: a data-driven model
Creators: name: Wright, Stephen J.
name: Heurich, Marco
name: Buchmann, Carsten M.
name: Böcker, Reinhard
name: Schurr, Frank M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 2: Table S1. Frequency of plant species emerging from dung samples of the studied deer individuals.
Extra-topical Preferences/Constrints During Search
Creators: name: Price, Andrew B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022
Subjects: Web search engines
Searching behavior
Natural language processing (Computer science)

description: This study is designed to better understand how users interact with search engines to convey, or not convey, preferences in information retrieval processes. Instances of information retrieval can have widely varied motivations and I will attempt to target several of them through my questioning and observe how they differ. Extra-topical dimensions, orthogonal to topical dimensions, will be used as a measure of how users communicate these preferences. Search tasks were manipulated along three topical dimensions related to the types of information being sought: (1) biased versus unbiased information, (2) recent versus historical information, (3) specific versus comprehensive information.
The Traveling Libraries of North Carolina
Creators: name: Miller, Madeline C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022
Subjects: Rural libraries
North Carolina Library Commission
Traveling libraries
Public libraries

description: This paper presents a qualitative, historical study of the characterization and doctrinal basis of the activities of the North Carolina Library Commission and its Traveling Libraries. It examines service to rural libraries and the delineation and contest between state responsibility and municipal or county responsibility for instituting public libraries.
Additional file 2 of An overview of reviews on strategies to reduce health inequalities
Creators: name: Garzón-Orjuela, Nathaly
name: Samacá-Samacá, Daniel Felipe
name: Angulo, Silvia Catalina Luque
name: Abdala, Carmen Verônica Mendes
name: Reveiz, Ludovic
name: Eslava-Schmalbach, Javier
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 2. List of studies excluded and reasons for their exclusion.
Single Magnetic Particle Motion in Magnetomotive Ultrasound: An Analytical Model and Experimental Validation
Creators: name: Oldenburg, A.L.
name: Levy, B.E.
Publisher: name: Institute of Electrical and Electronics Engineers Inc.
Year: 2021

description: Magnetomotive Ultrasound (MMUS) is an emerging imaging modality, in which magnetic nanoparticles (MNPs) are used as contrast agents. MNPs are driven by a time-varying magnetic force, and the resulting movement of the surrounding tissue is detected with a signal processing algorithm. However, there is currently no analytical model to quantitatively predict this magnetically-induced displacement. Toward the goal of predicting motion due to forces on the distribution of MNPs, in this work, a model originally derived from the Navier-Stokes equation for the motion of a single magnetic particle subject to a magnetic gradient force is presented and validated. Displacement amplitudes for a spatially inhomogeneous and temporally sinusoidal force were measured as a function of force amplitude and Young's modulus, and the predicted linear and inverse relationships were confirmed in gelatin phantoms, respectively, with three out of four data sets exhibiting {R}{{2}} ge {0.88}. The mean absolute uncertainty between the predicted displacement magnitude and experimental results was 14%. These findings provide a means by which the performance of MMUS systems may be predicted to verify that systems are working to theoretical limits and to compare results across laboratories.
Additional file 1 of An overview of reviews on strategies to reduce health inequalities
Creators: name: Garzón-Orjuela, Nathaly
name: Samacá-Samacá, Daniel Felipe
name: Angulo, Silvia Catalina Luque
name: Abdala, Carmen Verônica Mendes
name: Reveiz, Ludovic
name: Eslava-Schmalbach, Javier
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Evidence search report in electronic databases.