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Zeeman polaritons as a platform for probing Dicke physics in condensed matter

arXiv 2024年

作者： Kritzell, T. Elijah Doumani, Jacques Asano, Tobias Yamada, Sota Tay, Fuyang Xu, Hongjing Yan, Han Katayama, Ikufumi Takeda, Jun Nevidomskyy, Andriy Nojiri, Hiroyuki Bamba, Motoaki Baydin, Andrey Kono, Junichiro Applied Physics Graduate Program Smalley-Curl Institute Rice University 6100 Main Street HoustonTX77005 United States Department of Electrical and Computer Engineering Rice University 6100 Main Street HoustonTX77005 United States Department of Physics Yokohama National University 79-5 Tokiwadai Hodogaya-ku Kanagawa Yokohama240-8501 Japan Department of Physics and Astronomy Rice University 6100 Main Street HoustonTX77005 United States Smalley-Curl Institute Rice University 6100 Main Street HoustonTX77005 United States Institute for Multidisciplinary Sciences Yokohama National University 79-5 Tokiwadai Hodogaya-ku Kanagawa Yokohama240-8501 Japan Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Miyagi Sendai980-8577 Japan Rice Advanced Materials Institute Rice University 6100 Main Street HoustonTX77005 United States Department of Materials Science and NanoEngineering Rice University 6100 Main Street HoustonTX77005 United States

The interaction of an ensemble of two-level atoms and a quantized electromagnetic field, described by the Dicke Hamiltonian, is an extensively studied problem in quantum optics. However, experimental efforts to explor... 详细信息

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The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3

arXiv

引用

arXiv 2021年

作者： Kar, Uddipta Singh, Akhilesh Kr. Hsu, Yu-Te Lin, Chih-Yu Das, Bipul Cheng, Cheng-Tung Berben, M. Yang, Song Lin, Chun-Yen Hsu, Chia-Hung Wiedmann, S. Lee, Wei-Cheng Lee, Wei-Li Institute of Physics Academia Sinica Nankang Taipei11529 Taiwan Radboud University Toernooiveld 7 Nijmegen6525 ED Netherlands Department of Physics Applied Physics and Astronomy Binghamton University BinghamtonNY13902 United States Scientific Research Division National Synchrotron Radiation Research Center Hsinchu30076 Taiwan Nano Science and Technology Taiwan International Graduate Program Academia Sinica National Taiwan University Taiwan Radboud University Institute for Molecules and Materials Heyendaalseweg 135 Nijmegen6525 AJ Netherlands Department of Physics National Taiwan University Taipei10617 Taiwan

Quantum oscillations in resistivity and magnetization at high magnetic fields are a macroscopic fingerprint of the energy quantization due to the cyclotron motion of quasiparticles. In a thin Weyl semimetal, a unique ... 详细信息

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Training of Physical Neural Networks

arXiv

引用

arXiv 2024年

作者： Momeni, Ali Rahmani, Babak Scellier, Benjamin Wright, Logan G. McMahon, Peter L. Wanjura, Clara C. Li, Yuhang Skalli, Anas Berloff, Natalia G. Onodera, Tatsuhiro Oguz, Ilker Morichetti, Francesco del Hougne, Philipp Le Gallo, Manuel Sebastian, Abu Mirhoseini, Azalia Zhang, Cheng Marković, Danijela Brunner, Daniel Moser, Christophe Gigan, Sylvain Marquardt, Florian Ozcan, Aydogan Grollier, Julie Liu, Andrea J. Psaltis, Demetri Alù, Andrea Fleury, Romain Lausanne Switzerland Microsoft Research 198 Cambridge Science Park CambridgeCB4 0AB United Kingdom Rain AI San Francisco United States Department of Applied Physics Yale University CT United States School of Applied and Engineering Physics Cornell University IthacaNY14853 United States Max Planck Institute for the Science of Light Staudtstraße 2 Erlangen91058 Germany Department of Electrical and Computer Engineering University of California Los AngelesCA90095 United States FEMTO-ST Institute Optics Department CNRS University Bourgogne Franche-Comté Besançon25030 Cedex France Department of Applied Mathematics and Theoretical Physics University of Cambridge Cambridge United Kingdom NTT Physics and Informatics Laboratories NTT Research Inc. Sunnyvale United States Lausanne Switzerland Dipartimento di Elettronica Informazione e Bioingegneria Politecnico di Milano Milan Italy Univ Rennes CNRS IETR UMR 6164 RennesF-35000 France IBM Research Europe– Zurich Rüschlikon8803 Switzerland Department of Computer Science Stanford University United States Google DeepMind 1600 Amphitheatre Parkway Mountain ViewCA94043 United States Unité Mixte de Physique CNRS/Thales CNRS Thales Université Paris-Saclay Palaiseau France Laboratoire Kastler Brossel Sorbonne Université École Normale Supérieure Collège de France CNRS UMR 8552 Paris France Laboratoire Albert Fert CNRS Thales UniversitéParis-Saclay Palaiseau91767 France Department of Physics and Astronomy University of Pennsylvania PhiladelphiaPA19104 United States Lausanne Switzerland Photonics Initiative Advanced Science Research Center City University of New York New YorkNY10031 United States Physics Program Graduate Center City University of New York New YorkNY10016 United States

Physical neural networks (PNNs) are a class of neural-like networks that leverage the properties of physical systems to perform computation. While PNNs are so far a niche research area with small-scale laboratory demo... 详细信息

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Nanoscale visualization and spectral fingerprints of the charge order in ScV6Sn6 distinct from other kagome metals

arXiv

引用

arXiv 2023年

作者： Cheng, Siyu Ren, Zheng Li, Hong Oh, Ji Seop Tan, Hengxin Pokharel, Ganesh DeStefano, Jonathan M. Rosenberg, Elliott Guo, Yucheng Zhang, Yichen Yue, Ziqin Lee, Yongbin Gorovikov, Sergey Zonno, Marta Hashimoto, Makoto Lu, Donghui Ke, Liqin Mazzola, Federico Kono, Junichiro Birgeneau, R.J. Chu, Jiun-Haw Wilson, Stephen D. Wang, Ziqiang Yan, Binghai Yi, Ming Zeljkovic, Ilija Department of Physics Boston College Chestnut HillMA02467 United States Department of Physics and Astronomy Rice University HoustonTX77005 United States Department of Physics University of California BerkeleyCA94720 United States Department of Condensed Matter Physics Weizmann Institute of Science Rehovot Israel Materials Department University of California Santa Barbara Santa BarbaraCA93106 United States Department of Physics University of Washington SeattleWA98195 United States Ames Laboratory AmesIA50011 United States Canadian Light Source Inc. 44 Innovation Boulevard SaskatoonSKS7N 2V3 Canada Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo ParkCA94025 United States CNR Laboratorio TASC Area Science Park S.S.14 km 163.5 TriesteI-34149 Italy Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Venice30172 Italy Materials Science Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Applied Physics Graduate Program Smalley‐Curl Institute Rice University HoustonTX77005 United States

Charge density waves (CDWs) have been tied to a number of unusual phenomena in kagome metals, including rotation symmetry breaking, time‐reversal symmetry breaking and superconductivity. The majority of the experiments in kagome metals thus far have focused on the CDW states in AV3Sb5 (A=K, Cs, Rb) and FeGe, characterized by the 2a0 by 2a0 CDW period in the kagome plane. Recently, a bulk CDW phase (TCDW ≈ 92 K) with an entirely different wave length and orientation has been reported in ScV6Sn6, as the first realization of a CDW state in the broad RM6X6 crystal structure. Here, using a combination of scanning tunneling microscopy/spectroscopy and angle‐resolved photoemission spectroscopy, we reveal the microscopic structure and the spectroscopic signatures of this charge ordering phase in ScV6Sn6. Differential conductance dI/dV spectra show a partial gap opening in the density‐of‐states of about 20 meV at the Fermi level. This is much smaller than the spectral gaps observed in AV3Sb5 and FeGe despite the comparable TCDW temperatures in these systems, suggesting substantially weaker coupling strength in ScV6Sn6. Surprisingly, despite the three‐dimensional bulk nature of the charge order, we find that the charge modulation is only observed on the kagome termination. Temperature‐dependent band structure evolution suggests a modulation of the surface states as a consequence of the emergent charge order, with an abrupt spectral weight shift below TCDW consistent with the first‐order phase transition. The similarity of the electronic band structures of ScV6Sn6 and TbV6Sn6 (where the charge ordering is absent), together with the first‐principle calculations, suggests that charge ordering in ScV6Sn6 may not be primarily electronically driven. Interestingly, in sharp contrast to the CDW state of cousin AV3Sb5, we find no evidence supporting rotation symmetry breaking. Our results reveal a distinctive nature of the charge ordering phase in ScV6Sn6 in comparison to other kagome

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