• 文献标题:   Role of topology on the work distribution function of a quenched Haldane model of graphene
  • 文献类型:   Article
  • 作  者:   BHATTACHARJEE S, BHATTACHARYA U, DUTTA A
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   Indian Inst Technol
  • 被引频次:   0
  • DOI:   10.1103/PhysRevB.98.104302
  • 出版年:   2018

▎ 摘  要

We investigate the effect of equilibrium topology on the statistics of nonequilibrium work performed during the subsequent unitary evolution, following a sudden quench of the Semenoff mass of the Haldane model. We show that the resulting work distribution function for quenches performed on the Haldane Hamiltonian with broken time reversal symmetry (TRS) exhibits richer universal characteristics as compared to those performed on the time-reversal symmetric massive graphene limit whose work distribution function we have also evaluated for comparison. Importantly, our results show that the work distribution function exhibits different universal behaviors following the nonequilibrium dynamics of the system for small phi (argument of complex next nearest neighbor hopping) and large phi limits, although the two limits belong to the same equilibrium universality class.