globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2020.09.036
论文题名:
Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas
作者: Lu Y.-H.; Wang B.-Z.; Liu X.-J.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:24
起始页码: 2080
结束页码: 2085
语种: 英语
中文关键词: Optical lattice ; Quench dynamics ; Spin-orbit coupling ; Topological quantum phase ; Ultracold atoms ; Weyl semimetal
英文关键词: Gases ; Optical lattices ; Condensed matter ; Linking numbers ; Nodal points ; Optical Raman ; Quantum gas ; Threedimensional (3-d) ; Ultracold atoms ; Ultracold quantum gas ; Spin orbit coupling
英文摘要: There is an immense effort in search for various types of Weyl semimetals, of which the most fundamental phase consists of the minimal number of i.e. two Weyl points, but is hard to engineer in solids. Here we demonstrate how such fundamental Weyl semimetal can be realized in a maneuverable optical Raman lattice, with which the three-dimensional (3D) spin-orbit (SO) coupling is synthesised for ultracold atoms. In addition, a new novel Weyl phase with coexisting Weyl nodal points and nodal ring is also predicted here, and is shown to be protected by nontrivial linking numbers. We further propose feasible techniques to precisely resolve 3D Weyl band topology through 2D equilibrium and dynamical measurements. This work leads to the first realization of the most fundamental Weyl semimetal band and the 3D SO coupling for ultracold quantum gases, which are respectively the significant issues in the condensed matter and ultracold atom physics. © 2020 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169996
Appears in Collections:气候变化与战略

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作者单位: International Center for Quantum Materials and School of Physics, Peking University, Beijing, 100871, China; Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China; Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai, 201315, China; CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, 100190, China

Recommended Citation:
Lu Y.-H.,Wang B.-Z.,Liu X.-J.. Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas[J]. Science Bulletin,2020-01-01,65(24)
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