@article{PengRenBraaketal.2014,
  author    = {Jie Peng and Zhongzhou Ren and Daniel Braak and Guangjie Guo and Guoxing Ju and Xin Zhang and Xiaoyong Guo},
  title     = {Solution of the two-qubit quantum Rabi model and its exceptional eigenstates},
  journal   = {Journal of Physics A: Mathematical and Theoretical},
  volume    = {47},
  number    = {26},
  pages     = {265303},
  doi       = {10.1088/1751-8113/47/26/265303},
  year      = {2014},
}