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arXiv · 1306.2711

Robustness of fragmented condensate many-body states for continuous distribution amplitudes in Fock space

Uwe R. Fischer·Bo Xiong
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Abstract

We consider a two-mode model describing scalar bosons with two-body interactions in a single trap, taking into account coherent pair-exchange between the modes. It is demonstrated that the resulting fragmented many-body states with continuous (nonsingular) Fock-space distribution amplitudes are robust against perturbations due to occupation number and relative phase fluctuations, Josephson-type tunneling between the modes, and weakly broken parity of orbitals, as well as against perturbations due to interaction with a third mode.

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Uwe R. Fischer, Bo Xiong. 2013-11-07. Robustness of fragmented condensate many-body states for continuous distribution amplitudes in Fock space. https://doi.org/10.1103/physreva.88.053602

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