Electromagnetic Wave Dynamics in Matter-Wave Superradiant Scattering
Lu Deng, Edward W. Hagley, Marvin Payne
We present a small-signal wave propagation theory on matter-wave superradiant scattering. We show, in a longitudinally excited condensate, that the backward-propagating, superradiantly generated optical field propagates with ultraslow group velocity and that the small-signal gain profile has a Bragg resonance. We further show a unidirectional suppression of optical superradiant scattering, and explain why matter-wave superradiance can occur only when the pump laser is red detuned. This is the first analytical theory on field propagation in matter-wave superradiance that can explain all matter-wave superradiance experiments to date that used a single-frequency, long-pulse, red-detuned laser.
, Hagley, E.
and Payne, M.
Electromagnetic Wave Dynamics in Matter-Wave Superradiant Scattering, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.104.050402
(Accessed June 3, 2023)