Floquet and anomalous Floquet Weyl semimetals
Floquet and anomalous Floquet Weyl semimetals
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Floquet 和异常 Floquet Weyl 半金属
DOI:
10.1103/physrevresearch.2.033045
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发表时间:
2020-03
影响因子:
4.2
通讯作者:
Zhaoxin Liang
中科院分区:
文献类型:
--
作者:
Yufei Zhu;Tao Qin;Xinxin Yang;Gao Xianlong;Zhaoxin Liang
The periodic driving of a quantum system can enable new topological phases without analogs in static systems. This provides a route towards preparing non-equilibrium quantum phases rooted into the non-equilibrium nature by periodic driving engineering. Motivated by the ongoing considerable interest in topological semimetals, we are interested in the novel topological phases in the periodically driven topological semimetals without a static counterpart. We propose to design non-equilibrium topological semimetals in the regime of weakly driving field where the spectrum width of shares the same magnitude with the driving frequency. We identify two novel types of non-equilibrium Weyl semimetals (i.e., Floquet and anomalous Floquet Weyl semimetals) that do not exhibit analogues in equilibrium. The proposed setup is shown to be experimentally feasible using the state-of-the-art techniques used to control ultracold atoms in optical lattices.
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