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Three-wave mixing of bogoliubov quasiparticles in a bose-einstein condensate
R Ozeri1, N Katz, J Steinhauer
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
Physical Review Letters
|June 6, 2003
Abstract:
A dressed basis is used to calculate the dynamics of three-wave mixing between Bogoliubov quasiparticles in a Bose condensate. Because of the observed oscillations between different momentum modes, an energy splitting, analogous to the optical Mollow triplet, appears in the Beliaev damping spectrum of the excitations from the oscillating modes.