Quantum Phases of Attractive Matter Waves in a Toroidal Trap

Details Quantum Phases of Attractive Matter Waves in a Toroidal Trap Quantum Phases of Attractive Matter Waves in a Toroidal Trap

2005-11-03

arxiv.org/abs/cond-mat/0511088v1

Phys. Rev. A 72, 063612 (2005)

Physics

Condensed Matter

Other Condensed Matter

6 pages, 5 figures. To be published in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.72.063612

Investigating the quantum phase transition in a ring from a uniform attractive Bose-Einstein condensate to a localized bright soliton we find that the soliton undergoes transverse collapse at a critical interaction strength, which depends on the ring dimensions. In addition, we predict the existence of other soliton configurations with many peaks, showing that they have a limited stability domain. Finally, we show that the phase diagram displays several new features when the toroidal trap is set in rotation.

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