In this letter the explicit form of evolution operator for the four atoms Tavis-Cummings model is given.
Cite
@article{arxiv.quant-ph/0406184,
title = {Explicit Form of the Evolution Operator for the Four Atoms Tavis-Cummings Model},
author = {Kazuyuki Fujii and Kyoko Higashida and Ryosuke Kato and Tatsuo Suzuki and Yukako Wada},
journal= {arXiv preprint arXiv:quant-ph/0406184},
year = {2007}
}