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Study of nonstandard interactions mediated by a scalar field at the ESSnuSB experiment

Physical Review D 2024年第11期109卷 115010-115010页

作者： J. Aguilar M. Anastasopoulos E. Baussan A. K. Bhattacharyya A. Bignami M. Blennow M. Bogomilov B. Bolling E. Bouquerel F. Bramati A. Branca W. Brorsson G. Brunetti I. Bustinduy C. J. Carlile J. Cederkall T. W. Choi S. Choubey P. Christiansen M. Collins E. Cristaldo Morales H. Danared D. Dancila J. P. A. M. de André M. Dracos I. Efthymiopoulos T. Ekelöf M. Eshraqi G. Fanourakis A. Farricker E. Fasoula T. Fukuda N. Gazis Th. Geralis M. Ghosh A. Giarnetti G. Gokbulut C. Hagner L. Halić V. T. Hariharan K. E. Iversen M. Jenssen R. Johansson E. Kasimi A. Kayis Topaksu B. Kildetof B. Kliček K. Kordas A. Leisos M. Lindroos A. Longhin C. Maiano S. Marangoni C. Marrelli C. Martins D. Meloni M. Mezzetto N. Milas J. L. Muñoz M. Oglakci T. Ohlsson M. Olvegård M. Pari D. Patrzalek G. Petkov Ch. Petridou P. Poussot A. Psallidas F. Pupilli D. Raikwal D. Saiang D. Sampsonidis C. Schwab F. Sordo A. Sosa G. Stavropoulos M. Stipčević R. Tarkeshian F. Terranova T. Tolba E. Trachanas R. Tsenov A. Tsirigotis S. E. Tzamarias G. Vankova-Kirilova N. Vassilopoulos S. Vihonen J. Wurtz V. Zeter O. Zormpa Y. Zou Consorcio ESS-bilbao Parque Científico y Tecnológico de Bizkaia Laida Bidea Edificio 207-B 48160 Derio Bizkaia European Spallation Source Box 176 SE-221 00 Lund Sweden IPHC Université de Strasbourg CNRS/IN2P3 F-67037 Strasbourg France Department of Physics School of Engineering Sciences KTH Royal Institute of Technology Roslagstullsbacken 21 106 91 Stockholm Sweden The Oskar Klein Centre AlbaNova University Center Roslagstullsbacken 21 106 91 Stockholm Sweden Faculty of Physics Sofia University St. Kliment Ohridski 1164 Sofia Bulgaria University of Milano-Bicocca and INFN Sezione di Milano-Bicocca 20126 Milano Italy Department of Physics Lund University P.O. Box 118 221 00 Lund Sweden Department of Physics and Astronomy FREIA Division Uppsala University P.O. Box 516 751 20 Uppsala Sweden Faculty of Engineering Lund University P.O. Box 118 221 00 Lund Sweden CERN 1211 Geneva 23 Switzerland Institute of Nuclear and Particle Physics NCSR Demokritos Neapoleos 27 15341 Agia Paraskevi Greece Cockroft Institute (A36) Liverpool University Warrington WA4 4AD United Kingdom Department of Physics Aristotle University of Thessaloniki Thessaloniki Greece Institute for Advanced Research Nagoya University Nagoya 464–8601 Japan Center of Excellence for Advanced Materials and Sensing Devices Ruđer Bošković Institute 10000 Zagreb Croatia Dipartimento di Matematica e Fisica Universitá di Roma Tre Via della Vasca Navale 84 00146 Rome Italy Department of Physics Faculty of Science and Letters University of Cukurova 01330 Adana Turkey Institute for Experimental Physics Hamburg University 22761 Hamburg Germany Department of Physics and Astronomy “G. Galilei ” University of Padova and INFN Sezione di Padova Padova Italy INFN Sezione di Padova Padova Italy Harish-Chandra Research Institute A CI of Homi Bhabha National Institute Chhatnag Road Jhunsi Prayagraj 211019 India Homi Bhabha National Institute Anushakti Nagar Mumbai 400094 India Department of Civil E

In this paper, we study scalar mediator induced nonstandard interactions (SNSIs) in the context of the ESSnuSB experiment. In particular, we study the capability of ESSnuSB to put bounds on the SNSI parameters and also study the impact of SNSIs in the measurement of the leptonic CP phase δCP. Existence of SNSIs modifies the neutrino mass matrix and this modification can be expressed in terms of three diagonal real parameters (ηee, ημμ, and ηττ) and three off-diagonal complex parameters (ηeμ, ηeτ, and ημτ). Our study shows that the upper bounds on the parameters ημμ and ηττ depend upon how Δm312 is minimized in the theory. However, this is not the case when one tries to measure the impact of SNSIs on δCP. Further, we show that the CP sensitivity of ESSnuSB can be completely lost for certain values of ηee and ημτ for which the appearance channel probability becomes independent of δCP.

关键词： Neutrino interactions Neutrino mixing Neutrino oscillations Neutrinos

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Collimated beam formation in 3D acoustic sonic crystals

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New Journal of Physics 2024年第7期26卷 073021-073021页

作者： A L Vanel M Dubois C Tronche S Fu Y-T Wang G Dupont A D Rakić K Bertling R Abdeddaim S Enoch R V Craster G Li S Guenneau J Perchoux CERN 1211 Geneva 23 Switzerland Aix−Marseille Univ CNRS Centrale Marseille Institut Fresnel Marseille France Multiwave Imaging SAS Marseille France LAAS-CNRS Université de Toulouse CNRS INP Toulouse France Eastern Institute for Advanced Study NingBo People’s Republic of China Department of Mathematics Imperial College London London SW7 2AZ United Kingdom Photonics Initiative Advanced Science Research Center City University of New York New York NY 10031 United States of America Department of Photonics National Sun Yat-sen University Kaohsiung 804201 Taiwan Aix−Marseille Univ CNRS Centrale Marseille IRPHE Marseille France School of Electrical Engineering and Computer Science The University of Queensland Brisbane 4072 Australia UMI 2004 Abraham de Moivre-CNRS Imperial College London London SW7 2AZ United Kingdom Department of Mathematics The University of Hong Kong Pokfulam Road Hong Kong Hong Kong Special Administrative Region of China People’s Republic of China The Blackett Laboratory Physics Department Imperial College London London SW7 2AZ United Kingdom

We demonstrate strongly collimated beam formation, at audible frequencies, in a three-dimensional acoustic phononic crystal where the wavelength is commensurate with the crystal elements; the crystal is a seemingly simple rectangular cuboid constructed from closely-spaced spheres, and yet demonstrates rich wave phenomena acting as a canonical three-dimensional metamaterial. We employ theory, numerical simulation and experiments to design and interpret this collimated beam phenomenon and use a crystal consisting of a finite rectangular cuboid array of $4\times 10\times 10$ $4 \times 10 \times 10$ polymer spheres 1.38 cm in diameter in air, arranged in a primitive cubic cell with the centre-to-centre spacing of the spheres, i.e. the pitch, as 1.5 cm. Collimation effects are observ

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The eROSITA final equatorial-depth survey (eFEDS): X-ray observable-to-mass-and-redshift relations of galaxy clusters and groups with weak-lensing mass calibration from the hyper suprime-cam subaru strategic program survey

arXiv

引用

arXiv 2021年

作者： Chiu, I-Non Ghirardini, Vittorio Liu, Ang Grandis, Sebastian Bulbul, Esra Bahar, Y. Emre Comparat, Johan Bocquet, Sebastian Clerc, Nicolas Klein, Matthias Liu, Teng Li, Xiangchong Miyatake, Hironao Mohr, Joseph More, Surhud Oguri, Masamune Okabe, Nobuhiro Pacaud, Florian Ramos-Ceja, Miriam E. Reiprich, Thomas H. Schrabback, Tim Umetsu, Keiichi Tsung-Dao Lee Institute Key Laboratory for Particle Physics Astrophysics and Cosmology Ministry of Education Shanghai Jiao Tong University Shanghai200240 China Department of Astronomy School of Physics and Astronomy Shanghai Key Laboratory for Particle Physics and Cosmology Shanghai Jiao Tong University Shanghai200240 China 11F of AS/NTU Astronomy-Mathematics Building Taipei10617 Taiwan Max Planck Institute for Extraterrestrial Physics Giessenbachstrasse 1 Garching85748 Germany Faculty of Physics Ludwig-Maximilians-Universität Scheinerstr. 1 Munich81679 Germany IRAP Universite de Toulouse CNRS UPS CNES Toulouse France Department of Physics University of Tokyo 7-3-1 Hongo Bunkyoku Tokyo113-0033 Japan The University of Tokyo 5-1-5 Kashiwanoha Kashiwashi Chiba277-8583 Japan Nagoya University Nagoya464-8602 Japan Institute for Advanced Research Nagoya University Nagoya464-8601 Japan Division of Physics and Astrophysical Science Graduate School of Science Nagoya University Nagoya464-8602 Japan The Inter University Centre for Astronomy and Astrophysics Ganeshkhind Pune411007 India Research Center for the Early Universe University of Tokyo Tokyo113-0033 Japan Core Research for Energetic Universe Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima739-8526 Japan Physics Program Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama HigashiHiroshima Hiroshima739-8526 Japan Hiroshima Astrophysical Science Center Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima739-8526 Japan Universität Bonn Aufdem Hügel 71 Bonn53121 Germany

We present the first weak-lensing mass calibration and X-ray scaling relations of galaxy clusters and groups selected in the eROSITA Final Equatorial Depth Survey (eFEDS) observed by Spectrum Roentgen Gamma/eROSITA over a contiguous footprint with an area of ≈ 140 deg2, using the three-year (S19A) weak-lensing data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. In this work, we study a sample of 434 optically confirmed galaxy clusters (and groups) at redshift 0.01 z 1.3 with a median of 0.35, of which 313 systems are uniformly covered by the HSC survey to enable the extraction of the weak-lensing shear observable. In a Bayesian population modeling, we perform a blind analysis for the weak-lensing mass calibration by simultaneously modeling the observed count rate η and the shear profile g+of individual clusters through the count-rate-to-mass-and-redshift (η-M500-z) relation and the weak-lensing-mass-to-mass-and-redshift (MWL- M500-z) relation, respectively, while accounting for the bias in these observables using simulation-based calibrations. As a result, the count-rateinferred and lensing-calibrated cluster mass is obtained from the joint modeling of the scaling relations, as the ensemble mass spanning a range of 1013h-1Mo M500 1015h-1Mo with a median of ≈ 1014h-1Mofor the eFEDS sample. With the mass calibration, we further model the X-ray observable-to-mass-and-redshift relations, including the rest-frame soft-band and bolometric luminosity (LXand Lb), the emission-weighted temperature TX, the mass of intra-cluster medium Mg, and the mass proxy YX, which is the product of TXand Mg. Except for LXwith a steeper dependence on the cluster mass at a statistically significant level, we find that the other X-ray scaling relations all show a mass trend that is statistically consistent with the self-similar prediction at a level of 1.7σ. Meanwhile, all these scaling relations show no significant deviation from the self-similarity in their redshift scali

关键词： Surveys

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Roadmap on Quantum Thermodynamics

arXiv

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arXiv 2025年

作者： Campbell, Steve D’Amico, Irene Ciampini, Mario A. Anders, Janet Ares, Natalia Artini, Simone Auffèves, Alexia Oftelie, Lindsay Bassman Bettmann, Laetitia P. Bonança, Marcus V.S. Busch, Thomas Campisi, Michele Cavalcante, Moallison F. Correa, Luis A. Cuestas, Eloisa Dag, Ceren B. Dago, Salambô Deffner, Sebastian Del Campo, Adolfo Deutschmann-Olek, Andreas Donadi, Sandro Doucet, Emery Elouard, Cyril Ensslin, Klaus Erker, Paul Fabbri, Nicole Fedele, Federico Fiusa, Guilherme Fogarty, Thomás Folk, Joshua Guarnieri, Giacomo Hegde, Abhaya S. Hernández-Gómez, Santiago Hu, Chang-Kang Iemini, Fernando Karimi, Bayan Kiesel, Nikolai Landi, Gabriel T. Lasek, Aleksander Lemziakov, Sergei Monaco, Gabriele Lo Lutz, Eric Lvov, Dmitrii Maillet, Olivier Mehboudi, Mohammad Mendonça, Taysa M. Miller, Harry J.D. Mitchell, Andrew K. Mitchison, Mark T. Mukherjee, Victor Paternostro, Mauro Pekola, Jukka Perarnau-Llobet, Martí Poschinger, Ulrich Rolandi, Alberto Rosa, Dario Sánchez, Rafael Santos, Alan C. Sarthour, Roberto S. Sela, Eran Solfanelli, Andrea Souza, Alexandre M. Splettstoesser, Janine Tan, Dian Tesser, Ludovico Van Vu, Tan Widera, Artur Halpern, Nicole Yunger Zawadzki, Krissia School of Physics University College Dublin Belfield Dublin 4 Ireland Centre for Quantum Engineering Science and Technology University College Dublin Dublin 4 Ireland School of Physics Engineering and Technology University of York York United Kingdom York Centre for Quantum Technologies University of York York United Kingdom Boltzmanngasse 5 ViennaA-1090 Austria Institute of Physics and Astronomy University of Potsdam Potsdam14476 Germany Department of Physics and Astronomy University of Exeter ExeterEX4 4QL United Kingdom Department of Engineering Science University of Oxford Parks Road OxfordOX1 3PJ United Kingdom Università degli Studi di Palermo Dipartimento di Fisica e Chimica - Emilio Segrè via Archirafi 36 PalermoI-90123 Italy MajuLab CNRS-UCA-SU-NUS-NTU International Joint Research Laboratory France Centre for Quantum Technologies National University of Singapore Singapore117543 Singapore NEST Istituto Nanoscienze-CNR and Scuola Normale Superiore Pisa56127 Italy School of Physics Trinity College Dublin College Green Dublin 2 Ireland Gleb Wataghin Physics Institute The University of Campinas Campinas São Paulo13083-859 Brazil Quantum Systems Unit OIST Graduate University Okinawa Onna904-0495 Japan Department of Physics University of Maryland Baltimore County BaltimoreMD21250 United States Quantum Science Institute University of Maryland Baltimore County BaltimoreMD21250 United States Universidad de La Laguna La Laguna38203 Spain Departamento de Física Universidad de La Laguna La Laguna38203 Spain Jülich54245 Germany Department of Physics Indiana University BloomingtonIN47405 United States Department of Physics Harvard University 17 Oxford Street CambridgeMA02138 United States National Quantum Laboratory College ParkMD20740 United States Department of Physics and Materials Science University of Luxembourg LuxembourgL-1511 Luxembourg Donostia International Physics Center San SebastianE-20018 Spain Au

The last two decades has seen quantum thermodynamics become a well established field of research in its own right. In that time, it has demonstrated a remarkably broad applicability, ranging from providing foundational advances in the understanding of how thermodynamic principles apply at the nano-scale and in the presence of quantum coherence, to providing a guiding framework for the development of efficient quantum devices. Exquisite levels of control have allowed state-of-the-art experimental platforms to explore energetics and thermodynamics at the smallest scales which has in turn helped to drive theoretical advances. This Roadmap provides an overview of the recent developments across many of the field’s sub-disciplines, assessing the key challenges and future prospects, providing a guide for its near term progress. Copyright © 2025, The Authors. All rights reserved.

关键词： Temperature

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Helical magnetic order and Fermi surface nesting in noncentrosymmetric ScFeGe

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Physical Review B 2021年第1期103卷 014443-014443页

作者： Sunil K. Karna D. Tristant J. K. Hebert G. Cao R. Chapai W. A. Phelan Q. Zhang Y. Wu C. Dhital Y. Li H. B. Cao W. Tian C. R. Dela Cruz A. A. Aczel O. Zaharko A. Khasanov M. A. McGuire A. Roy W. Xie D. A. Browne I. Vekhter V. Meunier W. A. Shelton P. W. Adams P. T. Sprunger D. P. Young R. Jin J. F. DiTusa Department of Physics & Astronomy Louisiana State University Baton Rouge Louisiana 70803 USA Department of Physics & Center for Materials Research Norfolk State University Norfolk Virginia 23504 USA Cain Department of Chemical Engineering Louisiana State University Baton Rouge Louisiana 70803 USA Materials Genome Institute and Department of Physics Shanghai University Shanghai 200444 China Neutron Scattering Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Department of Physics Kennesaw State University Marietta Georgia 30060 USA Laboratory for Neutron Scattering and Imaging PSI CH-5232 Villigen Switzerland Mössbauer Effect Data Center University of North Carolina Asheville North Carolina 28804 USA Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Center for Advanced Microstructures and Devices (CAMD) Louisiana State University Baton Rouge Louisiana 70803 USA Department of Chemistry Louisiana State University Baton Rouge Louisiana 70803 USA Department of Physics Applied Physics and Astronomy Rensselaer Polytechnic Institute Troy New York 12180 USA

An investigation of the structural, magnetic, thermodynamic, and charge transport properties of noncentrosymmetric hexagonal ScFeGe reveals it to be an anisotropic metal with a transition to a weak itinerant incommensurate helimagnetic state below TN=36 K. Neutron diffraction measurements discovered a temperature and field independent helical wave vector k = (0 0 0.193) with magnetic moments of 0.53 μB per Fe confined to the ab plane. Density functional theory calculations are consistent with these measurements and find several bands that cross the Fermi level along the c axis with a nearly degenerate set of flat bands just above the Fermi energy. The anisotropy found in the electrical transport is reflected in the calculated Fermi surface, which consists of several warped flat sheets along the c axis with two regions of significant nesting, one of which has a wave vector that closely matches that found in the neutron diffraction. The electronic structure calculations, along with a strong anomaly in the c -axis conductivity at TN, signal a Fermi surface driven magnetic transition, similar to that found in spin density wave materials. Magnetic fields applied in the ab plane result in a metamagnetic transition with a threshold field of ≈6.7 T along with a sharp, strongly temperature dependent discontinuity and a change in sign of the magnetoresistance for in-plane currents. Thus, ScFeGe is an ideal system to investigate the effect of in-plane magnetic fields on a helimagnet with a c -axis propagation vector, where the relative strength of the magnetic interactions and anisotropies determine the topology and magnetic structure.

关键词： Noncentrosymmetric materials Noncollinear magnets Density functional calculations Magnetization measurements Neutron diffraction Resistivity measurements

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Beyond Fourier transform: Break the axial resolution limit in optical coherence tomography

arXiv

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arXiv 2020年

作者： Ling, Yuye Wang, Mengyuan Gan, Yu Yao, Xinwen Schmetterer, Leopold Zhou, Chuanqing Su, Yikai John Hopcroft Center for Computer Science Shanghai Jiao Tong University Shanghai China Department of Electrical and Computer Engineering University of Alabama AL United States Singapore Institute for Health Technologies Nanyang Technological University Singapore Singapore Eye Research Institute Singapore National Eye Centre Singapore School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Institute of Biomedical Engineering Shenzhen Bay Lab Shenzhen China School of Biomedical Engineering Shanghai Jiao Tong University Shanghai China State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai China

Optical coherence tomography (OCT) is a volumetric imaging modality that empowers clinicians and scientists to noninvasively visualize and examine the microscopic cross-sectional architectures of biological samples. By taking advantage of the coherence gating, OCT could achieve micrometer-level axial sectioning with high sensitivity. In the past decade, substantial efforts have been made to push the axial resolution of Fourier-domain OCT (FD-OCT) further into the sub-micron regime by physically extending the system's spectral bandwidth. Here, we offer a new perspective on this problem with the help of a new theoretical framework. We identified a key limitation on the reconstruction's axial resolution, which is induced by the Fourier transform-based reconstruction algorithm. To break this limit, we presented a novel optimization-based algorithm to recover the super-resolution image from ordinary FD-OCT measurements with proper physical assumptions. To prove the concept, we retrieved images at a resolution higher than the theoretical prediction in both phantoms and biological samples. Copyright © 2020, The Authors. All rights reserved.

关键词： Optical tomography

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Ultracool dwarfs candidates based on 6 yr of the Dark Energy Survey data

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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 2023年第2期522卷 1951-1967页

作者： dal Ponte, M. Santiago, B. Carnero Rosell, A. De Paris, L. Pace, A. B. Bechtol, K. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Bacon, D. Bertin, E. Bocquet, S. Brooks, D. Burke, D. L. Kind, M. Carrasco Carretero, J. Conselice, C. Costanzi, M. Desai, S. De Vicente, J. Doel, P. Everett, S. Ferrero, I Flaugher, B. Frieman, J. Garcia-Bellido, J. Gerdes, D. W. Gruendl, R. A. Gruen, D. Gutierrez, G. Hinton, S. R. Hollowood, D. L. James, D. J. Kuehn, K. Kuropatkin, N. Marshall, J. L. Mena-Fernandez, J. Menanteau, F. Miquel, R. Ogando, R. L. C. Palmese, A. Paz-Chinchon, F. Pereira, M. E. S. Plazas Malagon, A. A. Pieres, A. Raveri, M. Rodriguez-Monroy, M. Sanchez, E. Scarpine, V Schubnell, M. Sevilla-Noarbe, I Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. To, C. Weaverdyck, N. Instituto de Física UFRGS Caixa Postal 15051 Porto Alegre RS-91501-970 Brazil Laboratório Interinstitucional de e-Astronomia - LIneA Rua Gal. José Cristino 77 Rio de Janeiro RJ-20921-400 Brazil Instituto de Astrofisica de Canarias E-38205 La Laguna Tenerife Spain Universidad de La Laguna Dpto. Astrofísica E-38206 La Laguna Tenerife Spain McWilliams Center for Cosmology Carnegie Mellon University 5000 Forbes Ave Pittsburgh PA 15213 USA Physics Department University of Wisconsin-Madison Madison WI 53706 USA Cerro Tololo Inter-American Observatory NSF’s National Optical-Infrared Astronomy Research Laboratory Casilla 603 La Serena Chile Fermi National Accelerator Laboratory PO Box 500 Batavia IL 60510 USA Department of Physics University of Michigan Ann Arbor MI 48109 USA Institute of Cosmology and Gravitation University of Portsmouth Portsmouth PO1 3FX UK CNRS UMR 7095 Institut d’Astrophysique de Paris F-75014 Paris France Sorbonne Universités UPMC Univ Paris 06 UMR 7095 Institut d’Astrophysique de Paris F-75014 Paris France University Observatory Faculty of Physics Ludwig-Maximilians-Universität Scheinerstr. 1 D-81679 Munich Germany Department of Physics & Astronomy University College London Gower Street London WC1E 6BT UK Kavli Institute for Particle Astrophysics & Cosmology PO Box 2450 Stanford University Stanford CA 94305 USA SLAC National Accelerator Laboratory Menlo Park CA 94025 USA Center for Astrophysical Surveys National Center for Supercomputing Applications 1205 West Clark St. Urbana IL 61801 USA Department of Astronomy University of Illinois at Urbana-Champaign 1002 W. Green Street Urbana IL 61801 USA Institut de Física d’Altes Energies (IFAE) The Barcelona Institute of Science and Technology Campus UAB E-08193 Bellaterra (Barcelona) Spain Jodrell Bank Center for Astrophysics School of Physics and Astronomy University of Manchester Oxford Road Manchester M13 9PL UK University of Nottingham School of Physics and Astrono

We present a sample of 19 583 ultracool dwarf candidates brighter than z <= 23 selected from the Dark Energy Survey DR2 coadd data matched to VHS DR6, VIKING DR5, and AllWISE covering similar to 480 deg(2). The ultracool candidates were first pre-selected based on their (i-z), (z-Y), and (Y-J) colours. They were further classified using a method that compares their optical, near-infrared, and mid-infrared colours against templates of M, L, and T dwarfs. 14 099 objects are presented as new L and T candidates and the remaining objects are from the literature, including 5342 candidates from our previous work. Using this new and deeper sample of ultracool dwarf candidates we also present: 20 new candidate members to nearby young moving groups and associations, variable candidate sources and four new wide binary systems composed of two ultracool dwarfs. Finally, we also show the spectra of 12 new ultracool dwarfs discovered by our group and presented here for the first time. These spectroscopically confirmed objects are a sanity check of our selection of ultracool dwarfs and photometric classification method.

关键词： surveys brown dwarfs stars: low-mass

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P10.25.A ATR INHIBITION IN EXPERIMENTAL GLIOMA: DISCOVERY AND VALIDATION OF MOLECULAR TARGETS FOR FUNCTIONALLY-INSTRUCTED COMBINATION THERAPIES

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Neuro-Oncology 2023年第SUPPLEMENT_2期25卷 ii68–ii68页

作者： Walter, B Hirsch, S Kuhlburger, L Stahl, A Schnabel, L Haeusser, L A Tsiami, F Ploeger, S Aghaallaei, N Dick, A M Skokowa, J Schmees, C Templin, M Schenke-Layland, K Tatagiba, M Nahnsen, S Merk, D Tabatabai, G Hertie Institute for Clinical Brain Research Tübingen Germany Quantitative Biology Center Eberhard Karls University Tübingen Tübingen Germany Biomedical Data Science Department of Computer Science Eberhard Karls University Tübingen Tübingen Germany NMI Natural and Medical Sciences Institute at the University of Tübingen Reutlingen Germany German Consortium for Translational Cancer Research (DKTK) Partner site Tübingen Tübingen Germany Division of Translational Oncology Department of Internal Medicine II University Hospital Tübingen Tübingen Germany Institute of Biomedical Engineering Dept. for Medical Technologies and regenerative Medicine Eberhard Karls University Tübingen Tübingen Germany Center for Neuro-Oncology Comprehensive Cancer Center Tübingen-Stuttgart Eberhard Karls University Tübingen Tübingen Germany

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Superconductivity of platinum hydride

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Physical Review B 2019年第14期99卷 144511-144511页

作者： Takahiro Matsuoka Masahiro Hishida Keiji Kuno Naohisa Hirao Yasuo Ohishi Shigeo Sasaki Kazushi Takahama Katsuya Shimizu Department of Electrical Electronic and Computer Engineering Faculty of Engineering Gifu University Gifu 501-1193 Japan Department of Materials Science and Technology Gifu University Gifu 501-1193 Japan Environmental and Renewable Energy Systems Division Gifu University Gifu 501-1193 Japan Japan Synchrotron Radiation Research Institute (JASRI) Hyogo 679-5198 Japan Center for Science and Technology under Extreme Conditions Graduate School of Engineering Science Osaka University Osaka 560-8531 Japan

We report the ac magnetic susceptibility, electrical resistance, and x-ray diffraction measurements of PtHx(x≃1) in diamond anvil cells, that reveal the superconducting transition. At 30 GPa, when PtHx is in a P63/mmc structure, PtHx exhibits the superconducting transition at 7 K. Remarkably, the observed Tc is higher than that of powdered Pt by more than three orders of magnitude. It is suggested that the noble metals in the periodic table of elements possibly form a region where hydrides have higher Tc than elements.

关键词： Pressure effects Superconducting phase transition Hydrides Low-temperature superconductors AC susceptibility measurements Resistivity measurements X-ray powder diffraction

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The effect of introducing antibiotics into organic light-emitting diodes (vol 2, 130, 2019)

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COMMUNICATIONS PHYSICS 2019年第1期2卷 1-13页

作者： Hafeez, Hassan Jesuraj, P. Justin Kim, Dong Hyun Lee, Jong Chan Shin, Jun Young Rhee, Sang Ho Lee, Won Ho Choi, Dae Keun Cha, Jun Hwan Lee, Chang Min Kim, Chul Hoon Lamichhane, Janardan Pokhrel, Anaya Kim, Tae-Su Sohng, Jae Kyung Yun, Hyung Joong Park, Jong Bae Chung, Hee-Suk Bae, Tae-Sung Lee, Sang Geul Park, Hyun-Woo Chung, Kwun-Bum Song, Aeran Kwon, Jang Hyuk Bae, Hyeong Woo Kang, Yong-Cheol Park, Juyun Song, Myungkwan Kim, Chang-Su Ryu, Seung Yoon Division of Display and Semiconductor Physics Display Convergence College of Science and Technology Korea University Sejong Campus 2511 Sejong-ro Sejong City Republic of Korea Department of Information Communication & Display Engineering Division of Mechanical and ICT Convergence Engineering Sun Moon University Asan Republic of Korea Department of Advanced Materials Chemistry College of Science and Technology Korea University Sejong Campus 2511 Sejong-ro Sejong City Republic of Korea Department of Life Science and Biochemical Engineering SunMoon University Asan-si Korea Advanced Nano Surface Research Group Korea Basic Science Institute (KBSI) Daejeon Republic of Korea Jeonju Center Korea Basic Science Institute (KBSI) Jeonju Republic of Korea Daegu Center Korea Basic Science Institute (KBSI) Daegu Republic of Korea Division of Physics and Semiconductor Science Dongguk University Seoul Republic of Korea Department of Information Display Kyung Hee University Seoul Republic of Korea Department of Chemistry Pukyong National University Nam-gu Republic of Korea Surface Technology Division Korea Institute of Materials Science (KIMS) Changwon Changwon Republic of Korea

The quest to improve the performance of organic light-emitting diodes (OLEDs) has led to the exploration of new materials with properties like interfacial dipole, excitons generation, and bandgap alignment. Here, we exploit these strategies by investigating the interaction of the antibiotic ampicillin with a widely used optoelectronic material, to fabricate state-of-the-art OLEDs. The charge distribution on the ampicillin molecule facilitates the generation of an interfacial dipole with a large magnitude. The optimum fusion of the two materials provides an enhanced bandgap alignment, charge balance and J/H-aggregated excitons. Values of current efficiency (120 cdA−1), external quantum efficiency (~35%) and power efficiency (70 lmW−1) are demonstrated. The cross-evaluation of performance with penicillin devices indicates the significance of ampicillin’s specific molecular structure in improving performance. The detailed investigations demonstrate that ampicillin has superior optoelectronic properties with high potential to contribute extensively in OLEDs and photovoltaics.

关键词： Antibiotics

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