Observation of local temporal correlations in trapped quantum gases

Details Observation of local temporal correlations in trapped quantum gases Observation of local temporal correlations in trapped quantum gases

2011-05-24

arxiv.org/abs/1105.4818v1

Physics

Condensed Matter

Quantum Gases

Scientific paper

We measure the temporal pair correlation function $g^{(2)}(\tau)$ of a trapped gas of bosons above and below the critical temperature for Bose-Einstein condensation. The measurement is performed {\it in situ} using a local, time-resolved single-atom sensitive probing technique. Third and fourth order correlation functions are also extracted. We develop a theoretical model and compare it with our experimental data, finding good quantitative agreement and highlighting the role of interactions. Our results promote temporal correlations as new observables to study the dynamics of ultracold quantum gases.

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