Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice
Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice
复制标题
在二维光学晶格中模拟和探索冷原子的外尔半金属物理
DOI:
10.1103/physreva.92.013632
复制
发表时间:
2015-04
影响因子:
2.9
通讯作者:
Wang Z. D.
中科院分区:
文献类型:
--
作者:
Zhang Dan-Wei;Zhu Shi-Liang;Wang Z. D.
Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China, Hefei 230026, China(Dated: April 30, 2015)We propose a scheme to simulate and explore Weyl semimetal physics with ultracold fermionicatoms in a two-dimensional square optical lattice subjected to experimentally realizable spin-orbitcoupling and an artificial dimension from an external parameter space, which may increase experi-mental feasibility compared with the cases in three-dimensional optical lattices. It is shown that thissystem with a tight-binding model is able to describe essentially three-dimensional Weyl semimetalswith tunable Weyl points. The relevant topological properties are also addressed by means of theChern number and the gapless edge states. Furthermore, we illustrate that the mimicked Weylpoints can be experimentally detected by measuring the atomic transfer fractions in a Bloch-Zeneroscillation, and the characteristic topological invariant can be measured with the particle pumpingapproach.
登录
查看更多内容
影响因子:
8.6
作者:
Y. Zhao;Z. D. Wang-Z. D.-Wang-2128691004
通讯作者:
Y. Zhao;Z. D. Wang-Z. D.-Wang-2128691004
影响因子:
8.6
作者:
B. Béri;N. Cooper
通讯作者:
B. Béri;N. Cooper
影响因子:
8.6
作者:
Celi, A.;Massignan, P.;Lewenstein, M.
通讯作者:
Lewenstein, M.
影响因子:
8.6
作者:
NIU, Q
通讯作者:
NIU, Q
影响因子:
1.8
作者:
Delplace, Pierre;Li, Jian;Carpentier, David
通讯作者:
Carpentier, David