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Rogel-Salazar, J.; Choi, S.; New, G. H. C.; Burnett, K.

Characterisation of the dynamical quantum state of a zero temperature Bose-Einstein condensate. (English) Zbl 0996.82040

Phys. Lett., A 299, No. 5-6, 476-482 (2002).
Summary: 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 Schrödinger cat states are generated as the condensate evolves in a ballistic expansion.

Cited in 3 Documents

MSC:

82C10 Quantum dynamics and nonequilibrium statistical mechanics (general)

Keywords:

Q-function; Hartree approximation; multimode Schrödinger cat state
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