Ground-state multiquantum vortices in rotating two-species superfluids

Abstract

We show numerically that a rotating, harmonically trapped mixture of two Bose-Einstein-condensed superfluids can, contrary to its single-species counterpart, contain a multiply quantized vortex in the ground state of the system. This giant vortex can occur without any accompanying single-quantum vortices, may either be coreless or have an empty core, and can be realized in a ${}^{87}$Rb-${}^{41}$K Bose-Einstein condensate. Our results not only provide a rare example of a stable, solitary multiquantum vortex but also reveal exotic physics stemming from the coexistence of multiple, compositionally distinct condensates in one system.

6 pages, 4 color figures; identical in content to the published article

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Cited by in corpus (19)

• Stable giant vortex annuli in microwave-coupled atomic condensates
• Short range inter-vortex interaction and interacting dynamics of half-quantized vortices in two-component Bose-Einstein condensates
• Dual-species Bose-Einstein condensate of 41K and 87Rb in a hybrid trap
• Splitting of singly and doubly quantized composite vortices in two-component Bose-Einstein condensates
• Dynamics of phase separation in two species Bose-Einstein condensates with vortices
• Skyrmionic vortex lattices in coherently coupled three-component Bose-Einstein condensates
• Two-dimensional symbiotic solitons and vortices in binary condensates with attractive cross-species interaction
• Skyrmionic chains and lattices in $s+id$ superconductors
• Relative dynamics of quantum vortices and massive cores in binary BECs
• Vortices and magnetic bags in Abelian models with extended scalar sectors and some of their applications
• Massive-vortex realization of a Bosonic Josephson Junction
• Vortex structure and spectrum of atomic Fermi superfluid in a spherical bubble trap
• Tuning of non-paraxial effects of the Laguerre-Gaussian beam interacting with the two-component Bose-Einstein condensates
• Stable controllable giant vortex in a trapped Bose-Einstein condensate
• Equilibrium vortex lattices of a binary rotating atomic Bose-Einstein condensate with unequal atomic masses
• Analytical solutions of the coupled Gross-Pitaevskii equations for the three-species Bose-Einstein condensates
• Supercurrents and tunneling in massive many-vortex necklaces and star-lattices
• The synthetic gauge field and exotic vortex phase with spin-orbital-angular-momentum coupling
• Empty and filled vortices in squeezed 39K Bose-Bose liquid drops