We show that the influence of quantum fluctuations in the electromagnetic field vacuum on a two level atom can be measured and consequently compensated by balanced homodyne detection and a coherent feedback field. This compensation suppresses the decoherence associated with spontaneous emission for a specific state of the atomic system allowing complete control of the coherent state of the system.
@article{arxiv.quant-ph/9708031,
title = {Quantum control by compensation of quantum fluctuations},
author = {Holger F. Hofmann and Ortwin Hess and Guenter Mahler},
journal= {arXiv preprint arXiv:quant-ph/9708031},
year = {2015}
}
Comments
5 pages RevTex and 2 figures, to be published in Optics Express