
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.
5 pages RevTex and 2 figures, to be published in Optics Express
Quantum Physics, Atomic Physics (physics.atom-ph), FOS: Physical sciences, Quantum Physics (quant-ph), Physics - Atomic Physics, Physics - Optics, Optics (physics.optics)
Quantum Physics, Atomic Physics (physics.atom-ph), FOS: Physical sciences, Quantum Physics (quant-ph), Physics - Atomic Physics, Physics - Optics, Optics (physics.optics)
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