Quantum phase gate using single atom nonlinearlity
Shigeki Takeuchi, Hisaki Oka, Kunihiro Kojima, Holger Friedrich Hofmann, Keiji Sasaki · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2005
The nonlinear optical response obtained from a single two level atom in a one-sided cavity is studied using a model system, where a infinite atomic layer sits in front of a reflecting mirror. When the atomic layer is placed at the antinode of input field, the result given by finite difference time domain method coupled with the optical Bloch equations is consistent with previous analytical result [ H F. Hofmann, K. Kojima, S. Takeuchi, and K. Sasaki, J. Opt. B 5, 218 (2003) ] based on one-dimensional atom model.