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Characterisation of the dynamical quantum state of a zero temperature Bose-Einstein condensate

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arxiv cond-mat/0302066 v1 pith:CHNF6QOF submitted 2003-02-04 cond-mat.soft

Characterisation of the dynamical quantum state of a zero temperature Bose-Einstein condensate

classification cond-mat.soft
keywords condensatebose-einsteinstatequantumtemperaturezeroapproximationballistic
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We describe the quantum state of a Bose-Einstein condensate at zero temperature. By evaluating the Q-function we show that the ground state of Bose-Einstein condensate under the Hartree approximation is squeezed. We find that multimode Schroedinger cat states are generated as the condensate evolves in a ballistic expansion.

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