Quantum Rabi model for N-state atoms
Mesoscale and Nanoscale Physics
2012-05-03 v2 Chemical Physics
Quantum Physics
Abstract
A tractable N-state Rabi Hamiltonian is introduced by extending the parity symmetry of the two-state model. The single-mode case provides a few-parameter description of a novel class of periodic systems, predicting that the ground state of certain four-state atom-cavity systems will undergo parity change at strong coupling. A group-theoretical treatment provides physical insight into dynamics and a modified rotating wave approximation obtains accurate analytical energies. The dissipative case can be applied to study excitation energy transfer in molecular rings or chains.
Cite
@article{arxiv.1112.0849,
title = {Quantum Rabi model for N-state atoms},
author = {Victor V. Albert},
journal= {arXiv preprint arXiv:1112.0849},
year = {2012}
}
Comments
5 pages, 3 figures + supplement (2 pages); to appear in Phys. Rev. Lett