English

Solutions to the quantum Rabi model with two equivalent qubits

Quantum Physics 2015-06-18 v2

Abstract

Using extended coherent states, an analytically exact study has been carried out for the quantum Rabi model with two equivalent qubits. Compact transcendental functions of one variable have been derived leading to exact solutions. The energy spectrum is clearly identified and analyzed. Also obtained analytically is the necessary and sufficient conditions for the occurrence of isolated exceptional solutions, which are not doubly degenerate as in the one-qubit quantum Rabi model.

Keywords

Cite

@article{arxiv.1401.6531,
  title  = {Solutions to the quantum Rabi model with two equivalent qubits},
  author = {Hui Wang and Shu He and Liwei Duan and Yang Zhao and Qing-Hu Chen},
  journal= {arXiv preprint arXiv:1401.6531},
  year   = {2015}
}

Comments

14 pages, 3 figures

R2 v1 2026-06-22T02:54:39.863Z