Iranian Journal of Physics Research

Topological phase transitions in extended Kitaev model ‎with time independent and periodically driven chemical potential

Document Type : Original Article

Authors

Jalil Naji 1
Saeid Ansari 2
Rohollah Jafari 3

1 Department of Physics, Faculty of Science, Ilam University, Ilam, Iran

2 Department of Engineering Sciences and Physics, Buein Zahra Technical University, Buein Zahra, Iran

3 Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran

https://doi.org/10.47176/ijpr.26.1.52112
Abstract
Driven out-of-equilibrium systems exhibit richer topological phases compared to time-independent counterparts. In particular, when the time dependence is periodic, systems manifest topological phases that have not been observed in equilibrium systems. In this paper, we examine topological phase transitions in the extended Kitaev model with the periodically time-dependent chemical potential. First, we analyze the phase diagram of the system in equilibrium case, and then we show that driving the system with a periodically time-dependent chemical potential affects its topological phases and the energy spectrum of the model, thereby altering its phase diagram.

Keywords

Periodical out-of-equilibrium systems
Topological phases
Kitaev model
Subjects
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