Test of the quantumness of atom-atom correlations in a bosonic gas

Details Test of the quantumness of atom-atom correlations in a bosonic gas Test of the quantumness of atom-atom correlations in a bosonic gas

2006-03-16

arxiv.org/abs/quant-ph/0603147v1

Europhys. Lett. 73, 499 (2006)

Physics

Quantum Physics

Scientific paper

10.1209/epl/i2005-10435-1

It is shown how the quantumness of atom-atom correlations in a trapped bosonic gas can be made observable. Application of continuous feedback control of the center of mass of the atomic cloud is shown to generate oscillations of the spatial extension of the cloud, whose amplitude can be directly used as a characterization of atom-atom correlations. Feedback parameters can be chosen such that the violation of a Schwarz inequality for atom-atom correlations can be tested at noise levels much higher than the standard quantum limit.

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