Atomic four-wave mixing: fermions versus bosons |
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Authors: | Moore M G Meystre P |
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Institution: | Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA. |
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Abstract: | We compare four-wave mixing in quantum degenerate gases of bosonic and fermionic atoms. We find that matter-wave gratings formed from either bosonic or fermionic atoms can in principle exhibit nearly identical Bragg scattering and four-wave mixing properties. This implies that effects such as coherent matter-wave amplification and superradiance can occur in degenerate Fermi gases. This effect is due to constructive many-particle quantum interferences, which in the boson case are interpreted as "Bose enhancement." |
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