Abstract

We derive atomic energy-level shifts due to the presence of an electric field associated with an arbitrary quantum-mechanical state describing an intense, but otherwise arbitrary, radiation field, a particular example of such a state being squeezed radiation from an intense source. In another particular case, in which the radiation is classical and monochromatic, our result reduces to the well-known Townes–Schawlow result.

© 1987 Optical Society of America

Multiatom squeezed states: a new class of collective atomic states

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