Three-wave mixing of Bogoliubov quasi-particles in a Bose condensate
R. Ozeri, N. Katz, J. Steinhauer, N. Davidson
TL;DR
This paper investigates three-wave mixing of Bogoliubov quasi-particles in a Bose condensate, revealing oscillations and an energy splitting similar to the optical Mollow triplet in the damping spectrum.
Contribution
It introduces a dressed basis approach to analyze the dynamics of three-wave mixing in Bose condensates, highlighting novel oscillation phenomena and spectral features.
Findings
Oscillations between different momentum modes observed.
Energy splitting analogous to Mollow triplet identified.
Beliaev damping spectrum shows characteristic features.
Abstract
A dressed basis is used to calculate the dynamics of three-wave mixing between Bogoliubov quasi-particles in a Bose condensate. Due to the observed oscillations between different momenta modes, an energy splitting, analogous to the optical Mollow triplet, appears in the Beliaev damping spectrum of the excitations from the oscillating modes.
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