Mode competition in superradiant scattering of matter waves
Thibault Vogt, Bo Lu, XinXing Liu, Xu Xu, Xiaoji Zhou, Xuzong Chen
TL;DR
This paper investigates how superradiant scattering in a Bose gas from an optical lattice involves competition between different scattering modes, leading to suppression of certain modes, explained through a quantum light-matter interaction model.
Contribution
It introduces a quantum model to explain mode competition in superradiant scattering of matter waves from optical lattices.
Findings
Suppression of end-fire modes at low lattice depths
Mode competition affects superradiant scattering dynamics
Quantum model qualitatively explains experimental observations
Abstract
Superradiant Rayleigh scattering in a Bose gas released from an optical lattice is analyzed with incident light pumping at the Bragg angle for resonant light diffraction. We show competition between superradiance scattering into the Bragg mode and into end-fire modes clearly leads to suppression of the latter at even relatively low lattice depths. A quantum light-matter interaction model is proposed for qualitatively explaining this result.
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