Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance

L. Deng; E. W. Hagley; Qiang Cao; Xiaorui Wang; Xinyu Luo; Ruquan Wang; M. G. Payne; Fan Yang; Xiaoji Zhou; Xuzong Chen; Mingsheng Zhan

Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance

L. Deng, E. W. Hagley, Qiang Cao, Xiaorui Wang, Xinyu Luo, Ruquan Wang, M. G. Payne, Fan Yang, Xiaoji Zhou, Xuzong Chen, Mingsheng Zhan

Emeriti, Retired, & In Memoriam (COSM)

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Abstract

We report the first experimental observation of strong suppression of matter-wave superradiance using blue-detuned pump light and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical frameworks, which predict that the process should be symmetric with respect to the sign of the detuning of the pump laser from the one-photon resonance, we find that for condensates the symmetry is broken. With high condensate densities and red-detuned pump light the distinctive multiorder, matter-wave scattering pattern is clearly visible, whereas with blue-detuned pump light superradiance is strongly suppressed. However, in the limit of a dilute atomic gas symmetry is restored.

Original language	American English
Journal	Physical Review Letters
Volume	105
State	Published - Nov 23 2010

Keywords

Collective atomic recoil
Matter-wave superradiance
Pump-laser detuning

DC Disciplines

Physics

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title = "Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance",

abstract = "We report the first experimental observation of strong suppression of matter-wave superradiance using blue-detuned pump light and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical frameworks, which predict that the process should be symmetric with respect to the sign of the detuning of the pump laser from the one-photon resonance, we find that for condensates the symmetry is broken. With high condensate densities and red-detuned pump light the distinctive multiorder, matter-wave scattering pattern is clearly visible, whereas with blue-detuned pump light superradiance is strongly suppressed. However, in the limit of a dilute atomic gas symmetry is restored.",

keywords = "Collective atomic recoil, Matter-wave superradiance, Pump-laser detuning",

author = "L. Deng and Hagley, {E. W.} and Qiang Cao and Xiaorui Wang and Xinyu Luo and Ruquan Wang and Payne, {M. G.} and Fan Yang and Xiaoji Zhou and Xuzong Chen and Mingsheng Zhan",

note = "L. Deng, E. W. Hagley, Qiang Cao, Xiaorui Wang, Xinyu Luo, Ruquan Wang, Marvin G. Payne, Fan Yang, Xiaoji Chen, and Mingsheng Zhan. {"}Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance{"} Physical Review Letters 105.220404 (2010). doi:10.1103/PhysRevLett.105.220404",

year = "2010",

month = nov,

day = "23",

language = "American English",

volume = "105",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

TY - JOUR

T1 - Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance

AU - Deng, L.

AU - Hagley, E. W.

AU - Cao, Qiang

AU - Wang, Xiaorui

AU - Luo, Xinyu

AU - Wang, Ruquan

AU - Payne, M. G.

AU - Yang, Fan

AU - Zhou, Xiaoji

AU - Chen, Xuzong

AU - Zhan, Mingsheng

N1 - L. Deng, E. W. Hagley, Qiang Cao, Xiaorui Wang, Xinyu Luo, Ruquan Wang, Marvin G. Payne, Fan Yang, Xiaoji Chen, and Mingsheng Zhan. "Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance" Physical Review Letters 105.220404 (2010). doi:10.1103/PhysRevLett.105.220404

PY - 2010/11/23

Y1 - 2010/11/23

N2 - We report the first experimental observation of strong suppression of matter-wave superradiance using blue-detuned pump light and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical frameworks, which predict that the process should be symmetric with respect to the sign of the detuning of the pump laser from the one-photon resonance, we find that for condensates the symmetry is broken. With high condensate densities and red-detuned pump light the distinctive multiorder, matter-wave scattering pattern is clearly visible, whereas with blue-detuned pump light superradiance is strongly suppressed. However, in the limit of a dilute atomic gas symmetry is restored.

AB - We report the first experimental observation of strong suppression of matter-wave superradiance using blue-detuned pump light and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical frameworks, which predict that the process should be symmetric with respect to the sign of the detuning of the pump laser from the one-photon resonance, we find that for condensates the symmetry is broken. With high condensate densities and red-detuned pump light the distinctive multiorder, matter-wave scattering pattern is clearly visible, whereas with blue-detuned pump light superradiance is strongly suppressed. However, in the limit of a dilute atomic gas symmetry is restored.

KW - Collective atomic recoil

KW - Matter-wave superradiance

KW - Pump-laser detuning

M3 - Article

SN - 0031-9007

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Observation of a Red-Blue Detuning Asymmetry in Matter-Wave Superradiance

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Keywords

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