Hanbury Brown Twiss Effect for Ultracold Quantum Gases

Hanbury Brown Twiss Effect for Ultracold Quantum Gases
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DOI：
10.1126/science.1118024
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发表时间：
2005-08
期刊：
Science
影响因子：
56.9
通讯作者：
M. Schellekens;R. Hoppeler;A. Perrin;J. V. Gomes;D. Boiron;A. Aspect;C. Westbrook
M. Schellekens;R. Hoppeler;A. Perrin;J. V. Gomes;D. Boiron;A. Aspect;C. Westbrook
中科院分区：
综合性期刊1区
文献类型：
--
作者：
M. Schellekens;R. Hoppeler;A. Perrin;J. V. Gomes;D. Boiron;A. Aspect;C. Westbrook

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我们已经研究了膨胀云中原子的两体相关性，高于和低于玻色-爱因斯坦凝聚阈值。观测到的热云的相关函数表现为聚束行为，而相干样本的相关函数是平坦的。这些量子关联是Hanbury Brown Twiss效应的原子模拟。我们在三维上观察了这种效应，并研究了它与云大小的关系。
We have studied two-body correlations of atoms in an expanding cloud above and below the Bose-Einstein condensation threshold. The observed correlation function for a thermal cloud shows a bunching behavior, whereas the correlation is flat for a coherent sample. These quantum correlations are the atomic analog of the Hanbury Brown Twiss effect. We observed the effect in three dimensions and studied its dependence on cloud size.