Comprehensive theory of the relative phase in atom-field interactions
Quantum Physics
2009-11-07 v1
Abstract
We explore the role played by the quantum relative phase in a well-known model of atom-field interaction, namely, the Dicke model. We introduce an appropriate polar decomposition of the atom-field relative amplitudes that leads to a truly Hermitian relative-phase operator, whose eigenstates correctly describe the phase properties, as we demonstrate by studying the positive operator-valued measure derived from it. We find the probability distribution for this relative phase and, by resorting to a numerical procedure, we study its time evolution.
Cite
@article{arxiv.quant-ph/0102026,
title = {Comprehensive theory of the relative phase in atom-field interactions},
author = {J. Delgado and E. C. Yustas and L. L. Sanchez-Soto and A. B. Klimov},
journal= {arXiv preprint arXiv:quant-ph/0102026},
year = {2009}
}
Comments
20 pages, 4 figures, submitted to Phys. Rev. A