Interfering with decay of a single photon in microwave cavities through single photon quantum non-demolition scheme
J. G. Peixoto de Faria, P. Nussenzveig, A. F. R. de Toledo Piza, M. C. Nemes
Abstract
The decay of a single photon in a microwave cavity is shown to be retarded by interaction with a resonant two-level atom in the experimental setup recently developed by Nogues and co-workers [see G. Nogues, A. Rauschenbeutel, S. Osnaghi, M. Brune, J. M. Raimond and S. Haroche, Nature vol 400, 239(1999)]. The effect may be interpreted in terms of the temporary removal of the photon from the cavity thereby protecting it from the effects of the environment to wich the cavity is coupled. Realistic parameters lead to a significative increase of the survival probability of the photon subsequently to the monitoring interaction.
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