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Quantum Phases of Attractive Matter Waves in a Toroidal Trap

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 نشر من قبل Luca Salasnich
 تاريخ النشر 2005
  مجال البحث فيزياء
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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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