Exact Solution of a Non-Hermitian Generalized Rabi Model
Yusong Cao1,2 and Junpeng Cao1,2,3,4*
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China3 Songshan Lake Materials Laboratory, Dongguan 523808, China4 Peng Huanwu Center for Fundamental Theory, Xian 710127, China
Abstract ：An integrable non-Hermitian generalized Rabi model is constructed. A twist matrix is introduced to the construction of Hamiltonian and generates the non-Hermitian properties. The Yang–Baxter integrability of the system is proven. The exact energy spectrum and eigenstates are obtained using the Bethe ansatz. The method given in this study provides a general way to construct integrable spin-boson models.
收稿日期: 2021-05-02
Editors' Suggestion
出版日期: 2021-08-02
:
.75.10.Pq
02.30.Ik
(Integrable systems)
71.10.Pm
(Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.))
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2021, Vol. 38 
