cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Large Second-Order Josephson Effect in Planar Superconductor-Semiconductor Junctions
Creators: name: Zhang, P.
name: Zarassi, A.
name: Jarjat, L.
name: Van de Sande, V.
name: Pendharkar, M.
name: Lee, J. S.
name: Dempsey, C. P.
name: McFadden, A. P.
name: Harrington, S. D.
name: Dong, J. T.
name: Wu, H.
name: Chen, A. -H.
name: Hocevar, M.
name: Palmstrøm, C. J.
name: Frolov, S. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the current-phase relations of Al/InAs-quantum well planar Josephson junctions fabricated using nanowire shadowing technique. Based on several experiments, we conclude that the junctions exhibit an unusually large second-order Josephson harmonic, the $\sin(2φ)$ term. First, superconducting quantum interference devices (dc-SQUIDs) show half-periodic oscillations, tunable by gate voltages as well as magnetic flux. Second, Josephson junction devices exhibit kinks near half-flux quantum in supercurrent diffraction patterns. Third, half-integer Shapiro steps are present in the junctions. Similar phenomena are observed in Sn/InAs quantum well devices. We perform data fitting to a numerical model with a two-component current phase relation. Analysis including a loop inductance suggests that the sign of the second harmonic term is negative. The microscopic origins of the observed effect remain to be understood. We consider alternative explanations which can account for some but not all of the evidence.
description: Written using The Block Method. Data on Zenodo DOI: https://doi.org/10.5281/zenodo.6416083 v2: Added block "Non-identical negative and positive switching currents" and Figs.S4, S5. v3: Added Figs. 6, S6-S9, simulations with both inductive and second harmonic effects
An alternative model for the origin of gaps in circumstellar disks
Creators: name: Vorobyov, Eduard I.
name: Regaly, Zsolt
name: Guedel, Manuel
name: Lin, D. N. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Motivated by recent observational and numerical studies suggesting that collapsing protostellar cores may be replenished from the local environment, we explore the evolution of protostellar cores submerged in the external counter-rotating environment. These models predict the formation of counter-rotating disks with a deep gap in the gas surface density separating the inner disk (corotating with the star) and the outer counter-rotating disk. The properties of these gaps are compared to those of planet-bearing gaps that form in disks hosting giant planets. We employ numerical hydrodynamics simulations of collapsing cores that are replenished from the local counter-rotating environment, as well as numerical hydrodynamic simulations of isolated disks hosting giant planets, to derive the properties of the gaps that form in both cases. Our numerical simulations demonstrate that counter-rotating disks can form for a wide range of mass and angular momentum available in the local environment. The gap that separates both disks has a depletion factor smaller than 1%, can be located at a distance from ten to over a hundred AU from the star, and can propagate inward with velocity ranging from 1 AU/Myr to >100 AU/Myr. Unlike our previous conclusion, the gap can therefore be a long-lived phenomenon, comparable in some cases to the lifetime of the disk itself. For a proper choice of the planetary mass, the viscous α-parameter and the disk mass, the planet-bearing gaps and the gaps in counter-rotating disks may show a remarkable similarity in the gas density profile and depletion factor, which may complicate their observational differentiation.
description: 13 pages, 13 figures, accepted for publication in Astronomy & Astrophysics
L’utilisation de la musicothérapie dans la gestion des symptômes comportementaux et psychologiques de la démence
Creators: name: Cardoso Coelho, Eric
name: Fatio, Florian
name: Piffaretti, Michele
Publisher: name: Unknown
Year: 0
Subjects: subject: musicothérapie
subject: interventions musicales
subject: démence
subject: SCPD
subject: comportement
subject: maladie d'Alzheimer
subject: rôle infirmier
subject: EMS
subject: maisons de retraite
subject: institutions
subject: hesav TB SI

description: Contexte : Les maladies chroniques représentent la première cause de décès dans le monde. Parmi ces maladies, les démences engendrent des symptômes neuropsychiatriques appelés “Symptômes Comportementaux et Psychologiques de la Démence”. Cela représente l’un des facteurs les plus complexe dans la prise en soins par les soignants et les proches. But : Évaluer l'utilisation de la musicothérapie dans la prise en soins des patients atteints de démence qui manifestent des SCPD dans les établissements médico sociaux (EMS). Méthode : Il s'agit d'une revue de littérature qui s'est construite autour de trois thèmes principaux : la musicothérapie, les démences et les institutions de soins à long terme. Huit articles ont été sélectionnés en utilisant deux bases de données dont CINHAL et OVID. Les résultats ont été analysés et mis en perspective à l'aide de la théorie des besoins non-satisfaits d'Algase. Résultats : Une amélioration significative de la qualité de vie a pu être constatée dans la plupart des études. De plus, cette thérapie a un impact positif sur plusieurs SCPD, certaines fonctions cognitives, des habilités fonctionnelles et l’état affectif. Cela permet de renforcer la relation entre les patients et les soignants et d’améliorer le sentiment de fardeau des proches-aidants. Conclusion : La musicothérapie semble être une excellente thérapie complémentaire et non-pharmacologique dans la gestion des SCPD. D'autres études devraient être menées afin de renforcer la généralisation des résultats dans la pratique infirmière.
Resistive Plate Chambers for Precise Measurement of High-Momentum Protons in Short Range Correlations at R$^3$B
Creators: name: Xarepe, M.
name: Aumann, T.
name: Blanco, A.
name: Corsi, A.
name: Galaviz, D.
name: Johansson, H.
name: Linev, S.
name: Löher, B.
name: Lopes, L.
name: Michel, J.
name: Panin, V.
name: Rossi, D.
name: Saraiva, J.
name: Törnqvist, H.
name: Traxler, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Reactions with Relativistic Radioactive Beams (R$^3$B) collaboration of the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, has constructed an experimental setup to perform fundamental studies of nuclear matter, using as a probe reactions with exotic nuclei at relativistic energies. Among the various detection systems, one of the most recent upgrades consisted on the installation of a large area, around 2 m$^2$, multi-gap Resistive Plate Chamber (RPC), equipped with twelve 0.3 mm gaps and readout by 30 mm pitch strips, exhibiting a timing precision down to 50 ps and efficiencies above 98% for MIPs in a previous characterization of the detector. The RPC was part of the setup of the FAIR Phase 0 experiment that focused on measuring, for the first time, nucleon-nucleon short-range correlations (SRC) inside an exotic nucleus ($^{16}$C) that occurred in Spring 2022. The excellent timing precision of this detector will allow the measurement of the forward emitted proton momentum with a resolution of around 1%. In beam measurements show an RPC efficiency above 95% and a time precision better than 100 ps (including the contribution of a reference scintillator and the momentum spread of the particles) for forward emitted particles.
title: Adolescence, pornographie et santé mentale
title: implication pour la pratique infirmière en milieu scolaire
titleType: Subtitle
Creators: name: Caldini, Jamila
name: Gurtner, Marie-Eve
name: Perret, Yasmine
Publisher: name: Unknown
Year: 0
Subjects: subject: pornographie
subject: adolescent
subject: bien-être mental
subject: intervention
subject: prévention
subject: infirmière scolaire
subject: McGill
subject: hesav TB SI

description: Contexte : La pornographie est de plus en plus visualisée par de jeunes mineur-e-s. Une consommation pendant l’adolescence pourrait provoquer des conséquences sur l’état de santé mentale. Objectif : Déterminer les interventions possibles des infirmier-ère-s scolaires afin de prévenir les impacts de la consommation de pornographie sur la santé mentale des adolescent-e-s de 11 à 16 ans, et de les accompagner. Méthode : Utilisation de trois bases de données : PubMed, CINHAL et PsycInfo. Sept articles ont été sélectionnés selon les critères suivants d’inclusion : étude primaire qualitative ou quantitative, publiée dès 2011, population adolescente ou infirmière. Par la suite, les articles ont été analysés. Résultats : Les résultats utiles pour répondre à la question de recherche ont été mis en évidence à l’aide du cadre théorique de McGill. La pornographie est reliée à des problématiques de santé mentale chez les adolescent-e-s, et des interventions infirmières peuvent être mises en place en conséquence. Les entretiens individuels sont les plus bénéfiques pour l’accompagnement des adolescent-e-s. . Discussion : La collaboration entre l’infirmier-ère scolaire, l’adolescent-e et sa famille est essentielle dans la prévention des effets négatifs de la pornographie sur la santé psychique. Une limite est le manque d’information sur les conséquences de la pornographie sur la santé physique. Un aspect important à inclure dans la recherche serait davantage d’études qualitatives sur les expériences des adolescent-e-s avec la pornographie.
Peut-on améliorer la prise en charge infirmière d’une personne souffrant de troubles dépressifs grâce à l’utilisation de l’effet placebo ?
Creators: name: Cagli, Morgane
Publisher: name: Unknown
Year: 0
Subjects: subject: dépression
subject: effet placebo
subject: alliance thérapeutique
subject: attentes
subject: espoir
subject: rôle infirmier
subject: hesav TB SI

description: Contexte : De nos jours, la dépression touche de plus en plus de personnes. Cela engendre des problèmes physiques et psychologiques, un risque suicidaire élevé, une augmentation des hospitalisations, de la consommation d’antidépresseurs et des coûts de la santé. Bien que peu reconnu, l’effet placebo pourrait être une nouvelle manière de prendre en charge ces patients. Une telle prise en charge permettrait de diminuer la consommation médicamenteuse et d’améliorer les symptômes dépressifs. Objectif : Déterminer de quelle manière le rôle infirmier peut favoriser l’effet placebo dans la prise en charge de la dépression. Méthode : La base de données CINAHL a été utilisée pour la recherche scientifique. Cinq articles ont été sélectionnés pour ce travail. Résultats : L’analyse des articles à l’aide du modèle humaniste des soins infirmiers – UdeM a fait ressortir quatre dimensions centrales de l’effet placebo : l’alliance thérapeutique, l’attente, l’espoir et l’éthique. Discussion : Plusieurs attitudes infirmières pouvant influencer l’effet placebo et diminuer l’impact des symptômes dépressifs chez les personnes souffrant de troubles dépressifs sont identifiées au regard de l’analyse des articles et du modèle de soins. Leur apport et leurs limites dans la prise en charge des symptômes dépressifs sont discutés.
Estimating Molecular Gas Content in Galaxies from PAH Emission
Creators: name: Zhang, Lulu
name: Ho, Luis C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Emission from polycyclic aromatic hydrocarbons (PAHs), a commonly used indicator of star formation activity in galaxies, also has the potential to serve as an effective empirical tracer of molecular gas. We use a sample of 19 nearby galaxies with spatially resolved mid-infrared Spitzer spectroscopy, multi-wavelength optical and mid-infrared imaging, and millimeter interferometric CO(1-0) maps to investigate the feasibility of using PAH emission as an empirical proxy to estimate molecular gas mass. PAH emission correlates strongly with CO emission on sub-kpc scales over the diverse environments probed by our sample of star-forming galaxies and low-luminosity active galactic nuclei. The tight observed correlation, likely a consequence of photoelectronic heating of the diffuse interstellar gas by the PAHs, permits us to derive an empirical calibration to estimate molecular gas mass from the luminosity of PAH emission that has a total scatter of only {\sim} 0.2 - 0.25 dex. Mid-infrared bands sensitive to PAH emission (e.g., the Spitzer/IRAC4 and WISE/W3 filters) can also be used as a highly effective substitute for this purpose.
description: 11 pages, 6 figures, 3 tables, ApJ in press
Quantifying uncertainties due to optical potentials in one-neutron knockout reactions
Creators: name: Hebborn, Chloë
name: Whitehead, T. R.
name: Lovell, Amy E.
name: Nunes, Filomena M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: One-neutron knockout reactions have been widely used to extract information about the single-particle structure of nuclei from the valley of stability to the driplines. The interpretation of knockout data relies on reaction models, where the uncertainties are typically not accounted for. In this work we quantify uncertainties of optical potentials used in these reaction models and propagate them, for the first time, to knockout observables using a Bayesian analysis. We study two reactions in the present paper, the first of which involves a loosely-bound halo projectile, $^{11}$Be, and the second a tightly-bound projectile, $^{12}$C. We first quantify the parametric uncertainties associated with phenomenological optical potentials. Complementing to this approach, we also quantify the model uncertainties associated with the chiral forces that can be used to construct microscopic optical potentials. For the phenomenological study, we investigate the impact of the imaginary terms of the optical potential on the breakup and stripping components of the knockout cross sections as well as the impact of the angular range. For the $^{11}$Be case, the theoretical uncertainty from the phenomenological method is on the order of the experiment uncertainty on the knockout observables; however, for the $^{12}$C case, the theoretical uncertainty is significantly larger. The widths of the confidence intervals for the knockout observables obtained for the microscopic study and the phenomenological approach are of similar order of magnitude. Based on this work we conclude that structure information inferred from the ratio of the knockout cross sections, will carry a theoretical uncertainty of at least $20\%$ for halo nuclei and at least $40\%$ for tightly-bound nuclei.
description: Accepted for publication in Phys. Rev. C, 13 pages (including 2 of appendices and 1 of reference), 5 figures, 2 tables
Feedback-induced interactive dynamics: unitary but dissipative evolution
Creators: name: Wu, Shuohang
name: Cai, Zi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The time evolution of a physical system is generally described by a differential equation, which can be solved numerically by adopting a difference scheme with space-time discretization. This discretization, as a numerical artifact, results in accumulated errors during evolution thus usually plays a negative role in simulations. In a quantum circuit, however, the ``evolution time'' is represented by the depth of the circuit layer, thus is intrinsically discrete. Hence, the discretization-induced error therein is not a numerical artifact, but a physical observable effect responsible for remarkable nonequilibrium phenomena absent in conventional quantum dynamics. In this paper, we show that the combination of measurement feedback and temporal discretization can give rise to a new type of quantum dynamics characterized by unitary but dissipative evolution. As physical consequences of such an unitary but dissipative evolution, a nonequilibrium steady state with spontaneous symmetry breaking is revealed in a zero-dimensional (single-qubit) system. A localization mechanism distinct from that in the well-established Anderson localization has also been proposed in an one-dimensional interactive quantum system.
description: accepted by Science Bulletin
Stable vortex structures in colliding self-gravitating Bose-Einstein condensates
Creators: name: Nikolaieva, Y. O.
name: Bidasyuk, Y. M.
name: Korshynska, K.
name: Gorbar, E. V.
name: Jia, Junji
name: Yakimenko, A. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A key feature of ultra-light dark matter composed by bosons is the formation of superfluid Bose-Einstein condensate (BEC) structures on galactic scales. We study collisions of BEC solitonic and vortex structures in the framework of the Gross-Pitaevskii-Poisson model. It is found that the superfluid nature of bosonic dark matter leads to the formation of quantized vortex lines and vortex rings in interference patterns formed during collisions. Calculating the gravitational wave luminosity, we demonstrated that quantum interference patterns affect notably the gravitational wave radiation. We reveal that superfluid self-gravitating BECs can form stable localized vortex structures which remain robust even after a head-on collision.
description: 9 pages, 8 figures
Comment prévenir les arrêts cardiorespiratoires chez les athlètes et quel est le rôle infirmier dans ce contexte ?
Creators: name: Bowden, Sarah
name: Mauler, Alice
name: Morier, Samantha
Publisher: name: Unknown
Year: 0
Subjects: subject: prévention
subject: athlète
subject: système cardiaque
subject: arrêt cardio-respiratoire
subject: arrêt cardiaque
subject: rôle infirmier
subject: hesav TB SI

description: Introduction : l’arrêt cardio-respiratoire (ACR) chez les athlètes est la première cause de décès dans le monde du sport. Il s’agit d’un sujet d’actualité touchant une large population, tous sports confondus. Ce travail se penche sur la prévention des ACR ainsi que sur le rôle infirmier dans celle-ci. Objectif : comprendre comment prévenir les ACR chez les athlètes et surtout comprendre le rôle infirmier dans ce contexte. Méthode : les bases de données CINAHL et PUBMED ont été consultées et nous avons sélectionné six articles de recherches. Leur analyse a permis d’extraire les résultats liés à la question de recherche et de les mettre en perspective avec le cadre théorique infirmier au moyen du modèle de Betty Neuman. Résultats : nos recherches ont démontré l’absence de facteurs précurseurs d’un ACR et les causes multifactorielles d’un tel problème. Par ailleurs, en Suisse, la prévention des ACR et les connaissances des athlètes et des personnes gravitant dans leur entourage sont peu, voire inexistantes. Conclusion : la meilleure prévention possible relative à la problématique des ACR repose essentiellement sur l’apprentissage des gestes qui sauvent. Une bonne connaissance des facteurs de risques et des antécédents familiaux permettent de réduire de moitié un ACR chez l’athlète. La thématique de la prévention des ACR chez l’athlète est un sujet qu’il est grand temps de faire évoluer.
The 750 GeV diphoton excess and SUSY
Creators: name: Heinemeyer, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The LHC experiments ATLAS and CMS have reported an excess in the diphoton spectrum at \sim 750 GeV. At the same time the motivation for Supersymmetry (SUSY) remains unbowed. Consequently, we review briefly the proposals to explain this excess in SUSY, focusing on "pure" (N)MSSM solutions. We then review in more detail a proposal to realize this excess within the NMSSM. In this particular scenario a Higgs boson with mass around 750 GeV decays to two light pseudo-scalar Higgs bosons. Via mixing with the pion these pseudo-scalars decay into a pair of highly collimated photons, which are identified as one photon, thus resulting in the observed signal.
description: 10 pages, 2 figures. Talk given at the "Conference on New Physics at the Large Hadron Collider", 29.02. - 04.03.2016, Nanyang University, Singapore
Discovery of a radio lobe in the Cloverleaf Quasar at z = 2.56
Creators: name: Zhang, Lei
name: Zhang, Zhi-Yu
name: Nightingale, James. W.
name: Zou, Ze-Cheng
name: Cao, Xiaoyue
name: Tsai, Chao-Wei
name: Yang, Chentao
name: Shi, Yong
name: Wang, Junzhi
name: Xu, Dandan
name: Lin, Ling-Rui
name: Zhou, Jing
name: Li, Ran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The fast growth of supermassive black holes and their feedback to the host galaxies play an important role in regulating the evolution of galaxies, especially in the early Universe. However, due to cosmological dimming and the limited angular resolution of most observations, it is difficult to resolve the feedback from the active galactic nuclei (AGN) to their host galaxies. Gravitational lensing, for its magnification, provides a powerful tool to spatially differentiate emission originated from AGN and host galaxy at high redshifts. Here we report a discovery of a radio lobe in a strongly lensed starburst quasar, H1413+117 or Cloverleaf at redshift $z= 2.56$, based on observational data at optical, sub-millimetre, and radio wavelengths. With both parametric and non-parametric lens models and with reconstructed images on the source plane, we find a differentially lensed, kpc scaled, single-sided radio lobe, located at ${\sim}1.2\,\mathrm{kpc}$ to the north west of the host galaxy on the source plane. From the spectral energy distribution in radio bands, we find that the radio lobe has an energy turning point residing between 1.5 GHz and 8 GHz, indicating an age of 20--50 Myr. This could indicate a feedback switching of Cloverleaf quasar from the jet mode to the quasar mode.
L’importance du rôle infirmier dans l’éducation thérapeutique des patients transplantés pulmonaires
Creators: name: Bellon, Clara
name: Michaud, Lauriane
name: Primiterra, Andrea
Publisher: name: Unknown
Year: 0
Subjects: subject: transplantation pulmonaire
subject: éducation thérapeutique du patient
subject: théorie de la Transition de A.I. Meleis
subject: hesav TB SI

description: Introduction : L’éducation thérapeutique est essentielle dans l’accompagnement d’une personne transplantée pulmonaire. Un suivi incomplet et des connaissances lacunaires peuvent avoir de graves conséquences sur la qualité de vie après la transplantation et la réinsertion sociale des patient-e-s. Objectif : Le but de notre revue de littérature partielle est de comprendre le rôle infirmier dans l’éducation thérapeutique des patient-e-s en période de post-transplantation pulmonaire et d’en évaluer la qualité. Méthode : Les articles sont issus d’une recherche par descripteurs dans les bases de données CINAHL et PubMed. Neuf articles traitant des patient-e-s majeur-e-s étant transplanté-e-s pulmonairesont été retenus pour former le corpus final puis analysés grâce à des grilles simplifiées tirées du livre de Fortin & Gagnon (2016). Résultats : Les données extraites des articles sont traitées par dimensions et par attributs selon la théorie de la Transition de A.I. Meleis. Les résultats issus de la lecture critique des neufs articles scientifiques ont aidé à illuminer les hypothèses faites. Les résultats démontrent, en règle générale, que les patient-e-s désirent une éducation thérapeutique plus adaptée et spécifique à leurs besoins et ceux de leurs proches. Conclusion : Le rôle infirmier est bénéfique aux patient-es, tant au niveau physique que psychologique mais nécessite des compléments concernant la matière enseignée. Les articles convergent vers une recommandation générale qui est de séparer les informations transmises afin de les donner au moment propice où les participant-e-s sont le plus aptes à les intégrer.
Particle-in-cell study of the ion-to-electron sheath transition
Creators: name: Scheiner, Brett
name: Baalrud, Scott D.
name: Hopkins, Matthew M.
name: Yee, Benjamin T.
name: Barnat, Edward V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The form of a sheath near a small electrode, with bias changing from below to above the plasma potential is studied using 2D particle-in-cell (PIC) simulations. Five cases are studied: (A) an electrode biased more than the electron temperature ($T_e/e$) below the plasma potential, (B) an electrode biased less than $T_e/2e$ below the plasma potential, (C) an electrode biased nearly at the plasma potential, (D) an electrode biased more than $T_i/2e$ but less than $T_e/2e$ above the plasma potential, and (E) an electrode biased much greater than $T_e/2e$ above the plasma potential. In case (A), the electron velocity distribution function (EVDF) is observed to be Maxwellian with a Boltzmann-type exponential density decay through the ion sheath and presheath. In cases (B) and (C), the EVDFs exhibit a loss-cone type truncation due to fast electrons overcoming the small potential difference between the electrode and plasma. No sheath is present in this regime, and the plasma remains quasineutral up to the electrode. The EVDF truncation leads to a presheath-like density and flow velocity gradient. In case (D) an electron sheath is present, and essentially all ions are repelled. Here the truncation driven behavior persists, but is accompanied by a shift in the maximum value of the EVDF that is not present in the negative bias cases. In case (E), the flow shift becomes greater and the loss-cone moves further into the tail of the EVDF. In this case the flow moment has significant contributions from both the flow shift of the EVDF maximum, and the loss-cone truncation.
From time-reversal symmetry to quantum Bayes' rules
Creators: name: Parzygnat, Arthur J.
name: Fullwood, James
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Bayes' rule $\mathbb{P}(B|A)\mathbb{P}(A)=\mathbb{P}(A|B)\mathbb{P}(B)$ is one of the simplest yet most profound, ubiquitous, and far-reaching results of classical probability theory, with applications in any field utilizing statistical inference. Many attempts have been made to extend this rule to quantum systems, the significance of which we are only beginning to understand. In this work, we develop a systematic framework for defining Bayes' rule in the quantum setting, and we show that a vast majority of the proposed quantum Bayes' rules appearing in the literature are all instances of our definition. Moreover, our Bayes' rule is based upon a simple relationship between the notions of state over time and a time-reversal symmetry map, both of which are introduced here.
description: Some adjustments and organizational changes, typos fixed, new tables added; 24 pages total
On the gamma-ray emission from the core of the Sagittarius dwarf galaxy
Creators: name: Evans, Addy J.
name: Strigari, Louis E.
name: Svenborn, Oskar
name: Albert, Andrea
name: Harding, J. Patrick
name: Hooper, Dan
name: Linden, Tim
name: Pace, Andrew B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use data from the Large Area Telescope onboard the Fermi gamma-ray space telescope (Fermi-LAT) to analyze the faint gamma-ray source located at the center of the Sagittarius (Sgr) dwarf spheroidal galaxy. In the 4FGL-DR3 catalog, this source is associated with the globular cluster, M54, which is coincident with the dynamical center of this dwarf galaxy. We investigate the spectral energy distribution and spatial extension of this source, with the goal of testing two hypotheses: (1) the emission is due to millisecond pulsars within M54, or (2) the emission is due to annihilating dark matter from the Sgr halo. For the pulsar interpretation, we consider a two-component model which describes both the lower-energy magnetospheric emission and possible high-energy emission arising from inverse Compton scattering. We find that this source has a point-like morphology at low energies, consistent with magnetospheric emission, and find no evidence for a higher-energy component. For the dark matter interpretation, we find that this signal favors a dark matter mass of $m_χ = 29.6 \pm 5.8$ GeV and an annihilation cross section of $σv = (2.1 \pm 0.59) \times 10^{-26} \,\text{cm}^3/$s for the $b \bar{b}$ channel (or $m_χ = 8.3 \pm 3.8$ GeV and $σv = (0.90 \pm 0.25) \times 10^{-26} \, \text{cm}^3/$s for the $τ^+ τ^-$ channel), when adopting a J-factor of $J=10^{19.6} \, \text{GeV}^2 \, \text{cm}^{-5}$. This parameter space is consistent with gamma-ray constraints from other dwarf galaxies and with dark matter interpretations of the Galactic Center Gamma-Ray Excess.
description: 12 pages, 9 figures. To be submitted to MNRAS -- comments welcome
Integrated Quantum Optical Phase Sensor
Creators: name: Stokowski, Hubert S.
name: McKenna, Timothy P.
name: Park, Taewon
name: Hwang, Alexander Y.
name: Dean, Devin J.
name: Celik, Oguz Tolga
name: Ansari, Vahid
name: Fejer, Martin M.
name: Safavi-Naeini, Amir H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The quantum noise of light fundamentally limits optical phase sensors. A semiclassical picture attributes this noise to the random arrival time of photons from a coherent light source such as a laser. An engineered source of squeezed states suppresses this noise and allows sensitivity beyond the standard quantum limit (SQL) for phase detection. Advanced gravitational wave detectors like LIGO have already incorporated such sources, and nascent efforts in realizing quantum biological measurements have provided glimpses into new capabilities emerging in quantum measurement. We need ways to engineer and use quantum light within deployable quantum sensors that operate outside the confines of a lab environment. Here we present a photonic integrated circuit fabricated in thin-film lithium niobate that provides a path to meet these requirements. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. Using a 26.2 milliwatts of optical power, we measure (2.7 $\pm$ 0.2 )$\%$ squeezing and apply it to increase the signal-to-noise ratio of phase measurement. We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
description: 14 pages, 3+3 figures
Fujita exponent on stratified Lie groups
Creators: name: Suragan, Durvudkhan
name: Talwar, Bharat
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R03, 35B33, 35B44

description: We prove that $\frac{Q}{Q-2}$ is the Fujita exponent for a semilinear heat equation on an arbitrary stratified Lie group with homogeneous dimension $Q$. This covers the Euclidean case and gives new insight into proof techniques on nilpotent Lie groups. The equation we study has a forcing term which depends only upon a group element and has positive integral. The stratified Lie group structure plays an important role in our proofs, along with test function method and Banach fixed point theorem.
description: 15 pages
Space-time smoothing of complex survey data: Small area estimation for child mortality
Creators: name: Mercer, Laina D.
name: Wakefield, Jon
name: Pantazis, Athena
name: Lutambi, Angelina M.
name: Masanja, Honorati
name: Clark, Samuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Many people living in low- and middle-income countries are not covered by civil registration and vital statistics systems. Consequently, a wide variety of other types of data, including many household sample surveys, are used to estimate health and population indicators. In this paper we combine data from sample surveys and demographic surveillance systems to produce small area estimates of child mortality through time. Small area estimates are necessary to understand geographical heterogeneity in health indicators when full-coverage vital statistics are not available. For this endeavor spatio-temporal smoothing is beneficial to alleviate problems of data sparsity. The use of conventional hierarchical models requires careful thought since the survey weights may need to be considered to alleviate bias due to nonrandom sampling and nonresponse. The application that motivated this work is an estimation of child mortality rates in five-year time intervals in regions of Tanzania. Data come from Demographic and Health Surveys conducted over the period 1991-2010 and two demographic surveillance system sites. We derive a variance estimator of under five years child mortality that accounts for the complex survey weighting. For our application, the hierarchical models we consider include random effects for area, time and survey and we compare models using a variety of measures including the conditional predictive ordinate (CPO). The method we propose is implemented via the fast and accurate integrated nested Laplace approximation (INLA).
description: Published at http://dx.doi.org/10.1214/15-AOAS872 in the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A complex Ruelle-Perron-Frobenius theorem for infinite Markov shifts with applications to renewal theory
Creators: name: Kesseböhmer, Mark
name: Kombrink, Sabrina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C30, 60K05, 28D99, 58C40

description: We prove a complex Ruelle-Perron-Frobenius theorem for Markov shifts over an infinite alphabet, whence extending results by M. Pollicott from the finite to the infinite alphabet setting. As an application we obtain an extension of renewal theory in symbolic dynamics, as developed by S. P. Lalley and in the sequel generalised by the second author, now covering the infinite alphabet case.
Transverse Doppler effect and parameter estimation of LISA three-body systems
Creators: name: Kuntz, Adrien
name: Leyde, Konstantin
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Some binary black hole systems potentially observable in LISA could be in orbit around a supermassive black hole (SMBH). The imprint of relativistic three-body effects on the waveform of the binary can be used to estimate all the parameters of the triple system, in particular the mass of the SMBH. We determine the phase shift in the waveform due to the Doppler effect of the SMBH up to second order in velocity, which breaks a well-known exact degeneracy of the lowest-order Doppler effect between the mass of the SMBH and its inclination. We perform several parameter estimations for LISA signals including this additional dephasing in the wave, showing that one can determine accurately all parameters of the three-body system. Our results indicate that one can measure the mass of a $10^8\,$M$_{\odot}$ SMBH with an accuracy better than $\sim 30\%$ (resp. $\sim 15\%$) by monitoring the waveform of a binary system whose period around the SMBH is less 100 yr (resp. 20 yr).
Recommandations au sujet de l’enseignement réalisé par l’infirmier auprès du patient qui consulte aux urgences
Creators: name: Azevedo Tiago, Melanie
name: Fernandes, Daniela
Publisher: name: Unknown
Year: 0
Subjects: subject: urgences
subject: éducation à la santé
subject: éducation thérapeutique
subject: promotion de la santé
subject: instructions de sortie
subject: infirmier
subject: hesav TB SI

description: Contexte : En l’absence de consensus sur la définition d’urgence, les urgences des hôpitaux, idéalement conçues pour les situations engageant le pronostic vital, accueillent des patients1 à la suite d’accidents et de maladies de différents degrés de gravité. Par conséquent, ces départements font face à des difficultés diverses liées à leur engorgement, lesquelles entravent l’éducation thérapeutique et la promotion de la santé qui y sont réalisées. Or, celles-ci sont cruciales à la sécurité du patient qui retourne à domicile. Objectif : Formuler des recommandations au sujet de l’enseignement thérapeutique et de la promotion de la santé réalisés par l’infirmier auprès du patient qui consulte aux urgences. Méthodes : Deux bases de données ont été utilisées, PubMed et CINAHL. Ont été retenues les sources primaires, parues dès 2012, écrites en anglais, français, portugais ou espagnol, qui portent sur la promotion de la santé et l’éducation thérapeutique faites par l’infirmier auprès des patients, adultes ou enfants, consultant aux urgences. Ainsi, sept articles scientifiques ont été retenus. Résultats : La synthèse des sept sources primaires analysées a mis en évidence un certain nombre d’outils et d’interventions permettant d’augmenter la qualité de l’enseignement donné par l’infirmier urgentiste aux patients, en améliorant leurs connaissances sur la suite thérapeutique, en vue du retour à domicile. Discussion : Il est important de compléter les instructions orales par un document écrit. La compréhension du patient devrait également être vérifiée. D’autres supports éducationnels, tel que l’emploi d’un outil structuré, sont aussi envisagés.
A dichotomy between twisted tensor products of bialgebras and Frobenius algebras
Creators: name: Ocal, Pablo S.
name: Oswald, Amrei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16S10 (Primary) 16S35, 16S80, 16L60, 18M05, 17B37 (Secondary)

description: We endow twisted tensor products with a natural notion of counit and comultiplication, and we provide sufficient and necessary conditions making the twisted tensor product a counital coassociative coalgebra. We then characterize when the twisted tensor product of bialgebras is a bialgebra, and when the twisted tensor product of Frobenius algebras is a Frobenius algebra. Our methods are purely diagrammatic, so these results hold for (braided) monoidal categories. As an application, we recover that some quantum complete intersections are Frobenius algebras, and we construct families of noncommutative symmetric Frobenius algebras. Along the way, we also characterize when twisted tensor products of separable algebras are separable, and we prove that twisted tensor products of special Frobenius algebras are special Frobenius.
description: 26 pages, expanded acknowledgements, minor corrections, additional referee corrections, to appear in J. Algebra
Measuring topological entanglement entropy using Maxwell relations
Creators: name: Sankar, Sarath
name: Sela, Eran
name: Han, Cheolhee
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological entanglement entropy (TEE) is a key diagnostic of topological order, allowing to detect the presence of Abelian or non-Abelian anyons. However, there are currently no protocols to measure TEE in condensed matter systems. Here, we propose a scheme to measure the TEE, based on a nontrivial connection with the thermodynamic entropy change occurring in a quantum point contact (QPC) as it pinches off the topological liquid into two. We show how this entropy change can be extracted using Maxwell relations from charge detection of a nearby quantum dot. We demonstrate this explicitly for the Abelian Laughlin states, using an exact solution of the sine-Gordon model describing the universal crossover in the QPC. Our approach might open a new thermodynamic detection scheme of topological states also with non-Abelian statistics.
description: 5 pages, 4 figures. 7 pages of supplement material
Quantum Communication Between Remote Mechanical Resonators
Creators: name: Felicetti, S.
name: Fedortchenko, S.
name: Rossi, R.
name: Ducci, S.
name: Favero, I.
name: Coudreau, T.
name: Milman, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mechanical resonators represent one of the most promising candidates to mediate the interaction between different quantum technologies, bridging the gap between efficient quantum computation and long-distance quantum communication. In this letter, we introduce a novel interferometric scheme where the interaction of a mechanical resonator with input/output quantum pulses is controlled by an independent classical drive. We design protocols for state teleportation and direct quantum state transfer, between distant mechanical resonators. The proposed device, feasible with state-of-the-art technology, can serve as building block for the implementation of long-distance quantum networks of mechanical resonators.
Seismic Anisotropy of Mafic Blueschists: Constraints from Exhumed Rock-Record with Implications for the Subduction Interface
Creators: name: Ott, Jason N
name: Condit, Cailey
name: Bernard, Rachel
name: Schulte-Pelkum, Vera
name: Pec, Matej
Publisher: name: Zenodo
Year: 2023
Subjects: Seismic Anisotropy, Blueschist, subduction zone interface, glaucophane, epidote, lawsonite

description: EBSD-based seismic anisotropy study of 14 naturally deformed epidote and lawsonite blueschists sourced from 8 exhumed subduction terranes. Blueschists show strong seismic anisotropy (up to 20% in AVp), largely controlled by glaucophane modal abundance and fabric (CPO) strength. Seismic anisotropy developed largely by ductile deformation of glaucophane in the blueschists through climb-accommodated dislocation creep. The distinctive seismic properties of mafic blueschists show potential for mapping the extent and deformation of blueschists along the subduction interface from the base of the seismogenic zone to the sub-arc depths (where metamorphic reactions transform the blueschists to eclogite).
Series extension: Predicting approximate series coefficients from a finite number of exact coefficients
Creators: name: Guttmann, Anthony J
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 05Axx

description: Given the first 20-100 coefficients of a typical generating function of the type that arises in many problems of statistical mechanics or enumerative combinatorics, we show that the method of differential approximants performs surprisingly well in predicting (approximately) subsequent coefficients. These can then be used by the ratio method to obtain improved estimates of critical parameters. In favourable cases, given only the first 20 coefficients, the next 100 coefficients are predicted with useful accuracy. More surprisingly, this is also the case when the method of differential approximants does not do a useful job in estimating the critical parameters, such as those cases in which one has stretched exponential asymptotic behaviour. Nevertheless, the coefficients are predicted with surprising accuracy. As one consequence, significant computer time can be saved in enumeration problems where several runs would normally be made, modulo different primes, and the coefficients constructed from their values modulo different primes. Another is in the checking of newly calculated coefficients. We believe that this concept of approximate series extension opens up a whole new chapter in the method of series analysis.
description: 26 pages, 9 figures. arXiv admin note: text overlap with arXiv:1405.5327
Generation of photon-plasmon quantum states in nonlinear hyperbolic metamaterials
Creators: name: Poddubny, Alexander N.
name: Iorsh, Ivan V.
name: Sukhorukov, Andrey A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a general theoretical framework of integrated paired photon-plasmon generation through spontaneous wave mixing in nonlinear plasmonic and metamaterial nanostructures, rigorously accounting for material dispersion and losses in quantum regime through the electromagnetic Green function. We identify photon-plasmon correlations in layered metal-dielectric structures with 70% internal heralding quantum efficiency, and reveal novel mechanism of broadband generation enhancement due to topological transition in hyperbolic metamaterials.
description: 6 pages, 4 figures
Quelles sont les compétences infirmières pour faire du jeu une thérapie en pédopsychiatrie hospitalière ?
Creators: name: Alves, Caren
name: Masin, Estelle
Publisher: name: Unknown
Year: 0
Subjects: subject: hesav TB SI

description: Introduction : Les compétences infirmières nécessaires pour faire du jeu une thérapie dans un contexte de pédopsychiatrie sont des aspects peu explorés dans la littérature. La majorité des écrits sont élaborés d’un point de vue médical et psychologique ou d’un point de vue éducationnel. De plus, dans la pratique, les infirmiers n’ont pas d’ouvrages spécialisés dans ces compétences, et leur apprentissage se fait en pratiquant. Objectif : Identifier les compétences infirmières nécessaires pour faire d’une activité ludique une thérapie en pédopsychiatrie hospitalière. Méthodologie : La base de données CINHAL a été utilisée pour la recherche d’articles et cinq ont été sélectionnés afin d’atteindre l’objectif de ce travail. Résultats : Plusieurs activités ludiques sont mises en avant dans les articles afin de mettre en lumière les compétences des praticiens nécessaires pour faire de ces activités ludiques une thérapie. Afin de ressortir les compétences infirmières de ces articles ne venant pas des sciences infirmières, la théorie de Peplau a été utilisée. Trois rôles principaux peuvent être ressortis. Le rôle éducatif, le rôle de leadership ainsi que le rôle de conseillère, d’assistance et psychosocial ont été largement explicités afin d’être transposés à cette profession. De manière générale, les six rôles mis en avant grâce à cette théorie de soins nous ont permis de comprendre l’implantation du rôle infirmier dans cette approche psychiatrique de l’enfant. Discussion : À la suite de l’extraction des résultats, le référentiel de compétences de troisième année Bachelor ainsi qu’un entretient avec l’ICUS de l’unité Mistral de la Fondation de Nant ont permis d’élargir les rôles de la théorie à la pratique et de répondre à notre question de recherche.