Large Kerr nonlinearities on cavity-atom polaritons
Optics
2015-05-14 v1
Abstract
I analyze a scheme that is capable of producing large Kerr nonlinearities on cavity-atom polaritons in a cavity QED system consisting of multiple three-level atoms confined in a cavity mode. A weak control laser coupled to the atoms from free space induces destructive quantum interference in the polariton excitation of the coupled cavity-atom system and creates large Kerr nonlinearities on the intra-cavity light field. The scheme can be used for optical switching or cross-phase modulation of the cavity-atom polariton at ultra-low light levels, which may be useful for applications in quantum state manipulation in cavity QED, quantum measurements, and quantum logic gates.
Cite
@article{arxiv.0911.0588,
title = {Large Kerr nonlinearities on cavity-atom polaritons},
author = {Yifu Zhu},
journal= {arXiv preprint arXiv:0911.0588},
year = {2015}
}
Comments
17 pages, 5 figures