A class of quasi-exact solutions of Rabi Hamiltonian
A class of quasi-exact solutions of the Rabi Hamiltonian, which describes a two-level atom interacting with a single-mode radiation field via a dipole interaction without the rotating-wave approximation, are obtained by using a wavefunction ansatz. Exact solutions for part of the spectrum are obtained when the atom-field coupling strength and the field frequency satisfy certain relations. As an example, the lowest exact energy level and the corresponding atom-field entanglement at the quasi-exactly solvable point are calculated and compared to results from the Jaynes-Cummings and counter-rotating cases of the Rabi Hamiltonian. © International Academic Publishers.
Publication Source (Journal or Book title)
Communications in Theoretical Physics
Pan, F., Yao, Y., Xie, M., Han, W., & Draayer, J. (2007). A class of quasi-exact solutions of Rabi Hamiltonian. Communications in Theoretical Physics, 48 (1), 53-56. https://doi.org/10.1088/0253-6102/48/1/011