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论文类型： 期刊论文

发表时间： 2018-06-19

发表刊物： PHYSICS LETTERS A

收录刊物： SCIE

卷号： 382

期号： 24

页面范围： 1633-1638

ISSN号： 0375-9601

关键字： Floquet driving; Winding number; Second-neighbor couplings

摘要： The influence of the Floquet engineering on a particular one-dimensional p-wave superconductor, Kitaev model, with second-neighbor couplings is investigated in this paper. The effective Hamiltonians in the rotated reference frames have been obtained, and the convergent regions of the approximated Hamiltonian as well as the topological phase diagrams have been analyzed and discussed. We show that by modulating the external driving field amplitude, frequency as well as the second-neighbor hopping amplitude, the rich phase diagrams and transitions between different topological phases can be obtained. (C) 2018 Elsevier B.V. All rights reserved.