Cooperative scattering measurement of coherence in a spatially modulated Bose gas

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.051608· OSTI ID:21546687

Bo, Lu; Vogt, Thibault; Xinxing, Liu; Xu, Xu; Xiaoji, Zhou; Xuzong, Chen ^[1]

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1. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871 (China)

Correlations of a Bose gas released from an optical lattice are measured using superradiant scattering. Conditions are chosen so that, after initial incident light pumping at the Bragg angle for diffraction, superradiant scattering into the Bragg diffracted mode is preponderant due to matter-wave amplification and mode competition. A temporal analysis of the superradiant scattering gain reveals periodical oscillations and damping due to the initial lack of coherence between lattice sites. Such damping is used for characterizing first-order spatial correlations in our system with a precision of one lattice period.

• OSTI ID: 21546687
• Journal Information: Physical Review. A, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.051608; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
BOSE-EINSTEIN GAS
BRAGG REFLECTION
COOPERATIVES
CORRELATIONS
DAMPING
DIFFRACTION
GAIN
OPTICAL PUMPING
OSCILLATIONS
AMPLIFICATION
COHERENT SCATTERING
PUMPING
REFLECTION
SCATTERING