We show that a nonlinear phase shift of pi can be obtained by using a single two level atom in a one sided cavity with negligible losses. This result implies that the use of a one sided cavity can significantly improve the pi/18 phase shift previously observed by Turchette et al. [Phys. Rev. Lett. 75, 4710 (1995)].
@article{arxiv.quant-ph/0208029,
title = {Optimized phase switching using a single atom nonlinearity},
author = {Holger F. Hofmann and Kunihiro Kojima and Shigeki Takeuchi and Keiji Sasaki},
journal= {arXiv preprint arXiv:quant-ph/0208029},
year = {2009}
}
Comments
6 pages, 3 figures, added comments on derivation and assumptions