Electromagnetic Wave Dynamics in Matter-Wave Superradiant Scattering

被引：28

作者：

Deng, L. ^{[1
,2
]}

Payne, M. G. ^{[1
]}

Hagley, E. W. ^{[1
]}

机构：

[1] NIST, Phys Lab, Gaithersburg, MD 20899 USA

[2] Chinese Acad Sci, Wuhan Inst Phys & Math, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 05期

关键词：

BOSE-EINSTEIN CONDENSATE; PHASE-COHERENT AMPLIFICATION; LIGHT-SCATTERING; RAYLEIGH-SCATTERING;

D O I：

10.1103/PhysRevLett.104.050402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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