Title

A class of quasi-exact solutions of Rabi Hamiltonian

Document Type

Article

Publication Date

7-15-2007

Abstract

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

First Page

53

Last Page

56

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