Abstract
Recently the first experimental evidence of dynamic suppression of spontaneous emission in a strongly driven cavity has been obtained for Rydberg atoms placed in a close superconducting microwave cavity.1 Unlike in the case of an optical resonator2 the atoms do not interact with noncavity modes. The only reason for the atomic decay is the interaction of the atoms with the cavity mode decaying due to the finite Q factor of the cavity. The other difference from the optical cavity is the value of atom-cavity field coupling constant g: the high-Q microwave cavity g can be larger than cavity decay rate k. For example, in experiment1 g = 2π × 17 kHz and k = 2π × 6.7 kHz. This is the direct indication that the usual second order Bom approximation with respect to g is not good enough for the case.
© 1994 IEEE
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