气候变化领域集成服务门户(CCPortal): Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas

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DOI	10.1016/j.scib.2020.09.036
	Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas
	Lu Y.-H.; Wang B.-Z.; Liu X.-J.
发表日期	2020
ISSN	20959273
起始页码	2080
结束页码	2085
卷号	65 期号:24
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
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
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207140
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
推荐引用方式 GB/T 7714	Lu Y.-H.,Wang B.-Z.,Liu X.-J.. Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas[J],2020,65(24).
APA	Lu Y.-H.,Wang B.-Z.,&Liu X.-J..(2020).Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas.Science Bulletin,65(24).
MLA	Lu Y.-H.,et al."Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas".Science Bulletin 65.24(2020).