Generalized rotating-wave approximation for arbitrarily large coupling
Quantum Physics
2009-11-13 v1
Abstract
A generalized version of the rotating-wave approximation for the single-mode spin-boson Hamiltonian is presented. It is shown that performing a simple change of basis prior to eliminating the off-resonant terms results in a significantly more accurate expression for the energy levels of the system. The generalized approximation works for all values of the coupling strength and for a wide range of detuning values, and may find applications in solid-state experiments.
Cite
@article{arxiv.0706.2087,
title = {Generalized rotating-wave approximation for arbitrarily large coupling},
author = {E. K. Irish},
journal= {arXiv preprint arXiv:0706.2087},
year = {2009}
}