Superradiant light scattering from a moving Bose-Einstein condensate

被引：27

作者：

Bonifacio, R

Cataliotti, FS

Cola, M

Fallani, L

Fort, C

Piovella, N

Inguscio, M

机构：

[1] INFM, I-50019 Sesto Fiorentino, FI, Italy

[2] European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, FI, Italy

[3] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[4] Univ Catania, Dipartmento Fis, I-95124 Catania, Italy

[5] Univ Florence, Dipartimento Fis, I-50121 Florence, Italy

来源：

OPTICS COMMUNICATIONS | 2004年 / 233卷 / 1-3期

关键词：

collective atomic recoil; superradiance;

D O I：

10.1016/j.optcom.2004.01.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the interaction of a moving BEC with a far detuned laser beam. Superradiant Rayleigh scattering arises from the spontaneous formation of a matter-wave grating due to the interference of two wavepackets with different momenta. The system is described by the CARL-BEC model which is a generalization of the Gross-Pitaevskii model to include the setf-consistent evolution of the scattered field. The experiment gives evidence of a damping of the matter-wave grating which depends on the initial velocity of the condensate. We describe this damping in terms of a phase-diffusion decoherence process, in good agreement with the experimental results. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：155 / 160

页数：6

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