Physics – Quantum Physics
Scientific paper
2002-09-03
Physics
Quantum Physics
26 pages, 8 figures
Scientific paper
10.1103/PhysRevA.67.045801
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.
Berman Paul R.
Dantan Aurelien
Josse Vincent
Nayak N.
Pinard Michel
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