1306.2711 (Uwe R. Fischer et al.)

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

Uwe R. Fischer, Bo Xiong

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, as well as against perturbations due to interaction with a third mode.

View original: http://arxiv.org/abs/1306.2711