Application of the coupled cluster method to the Jaynes-Cummings model without the rotating-wave approximation
R. F. Bishop, Neil J. Davidson, R. M. Quick, DAVID M. VAN DER WALT · Physical Review A · 1996
We investigate the Rabi Hamiltonian (or the Jaynes-Cummings model without the rotating-wave approximation), describing the coupling of a single mode of electromagnetic radiation to a two-level system, by means of the coupled cluster method. We find strong evidence for a second-order quantum phase transition. \textcopyright{} 1996 The American Physical Society.