M. Feng et al., EXACT SOLUTION OF JAYNES-CUMMINGS MODEL WITHOUT ROTATING WAVE APPROXIMATION, Communications in Theoretical Physics, 30(2), 1998, pp. 169-172
In coherent-state representation, the Jaynes-Cummings (JC) model in th
e absence of rotating wave approximation (RWA), i.e., in detuning case
, is treated by the solution of some differential equations with const
ant coefficients and can be exactly solved. This approach can be easil
y extended to deal with the JC model without RWA in more complicated c
ases.