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Atomic squeezing in a Lambda system

A. Dantan·M. Pinard·V. Josse·N. Nayak·P. R. Berman
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Abstract

Using a quantum theory for an ensemble of three-level atoms (lambda) placed in an optical cavity abd driven by electromagnetic fields, we show that the long-lived spin associated with the ground state sublevels can be squeezed. Two kinds of squeezing are obtained: self-spin squeezing, when the input fields are coherent states and the atomic ensemble exhibit a large non-linearity; squeezing transfer, when one of the incoming fields is squeezed.

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A. Dantan, M. Pinard, V. Josse, N. Nayak, P. R. Berman. 2002-09-03. Atomic squeezing in a Lambda system. https://doi.org/10.1103/physreva.67.045801

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