Unusual states of vortex matter in mixtures of Bose--Einstein Condensates on rotating optical lattices

Abstract

A striking property of a single-component superfluid under rotation, is that a broken symmetry in the order parameter results in a broken translational symmetry, a vortex lattice. If translational symmetry is restored, the phase of the order parameter disorders and the broken symmetry in the order parameter is restored. We show that for Bose-Condensate mixtures on optical lattices (which may possess a negative dissipationless intercomponent drag), a new situation arises. A phase disordered nonsuperfluid component can break translational symmetry in response to rotation due to interaction with a superfluid component. This state is a modulated vortex liquid which breaks translational symmetry in the direction transverse to the rotation vector.

4 pages, 3 figures. To be published in Physical Review Letters

References in corpus (10)

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• Violation of the London Law and Onsager-Feynman quantization in multicomponent superconductors
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• Novel quantum phases of two-component bosons with pair hopping in synthetic dimension
• Fluctuation effects in rotating Bose-Einstein condensates with broken $\mathrm{SU}(2)$ and $\mathrm{U}(1)\times \mathrm{U}(1)$ symmetries in the presence of intercomponent density-density interactions
• Dissipationless Vector Drag--Superfluid Spin Hall Effect
• Freezing of an unconventional two-dimensional plasma
• Signature of Andreev-Bashkin superfluid drag from Cavity Optomechanics
• Drag-induced dynamical formation of dark solitons in Bose mixture on a ring
• Pseudospin-mediated Atomic-scale Vortices and Their Quantum Interferences in Monolayer Graphene