Stable Fractional Vortices in the Cyclic States of Bose-Einstein Condensates

Abstract

We propose methods to create fractional vortices in the cyclic state of an F = 2 spinor Bose-Einstein condensate by manipulating its internal spin structure using pulsed microwave and laser fields. The stability of such vortices is studied as a function of the rotation frequency of the confining harmonic trap both in pancake and cigar shaped condensates. We find a range of parameters for which the so-called 1/3-vortex state is energetically favorable. Such fractional vortices could be created in condensates of 87Rb atoms using current experimental techniques facilitating probing of topological defects with non-Abelian statistics.

5 pages, 2 figures

References in corpus (5)

• Quantized Rotation of Atoms From Photons with Orbital Angular Momentum
• Precision measurement of spin-dependent interaction strengths for spin-1 and spin-2 87Rb atoms
• Sculpting the Vortex State of a Spinor BEC
• Discrete symmetries and 1/3-quantum vortices in condensates of F=2 cold atoms
• Vortex lattice transitions in cyclic spinor condensates

Cited by in corpus (24)

• Spinor Bose-Einstein condensates
• Introduction to topological quantum computation with non-Abelian anyons
• Textures of Spin-Orbit Coupled F=2 Spinor Bose Einstein Condensates
• Exotic vortex lattices in two-species Bose-Einstein condensates
• Energetically stable singular vortex cores in an atomic spin-1 Bose-Einstein condensate
• Berezinskii-Kosterlitz-Thouless transition of two-component Bose mixtures with inter-component Josephson coupling
• Topological interface engineering and defect crossing in ultracold atomic gases
• Energetic stability of coreless vortices in spin-1 Bose-Einstein condensates with conserved magnetization
• Core Structure and Non-Abelian Reconnection of Defects in a Biaxial Nematic Spin-2 Bose-Einstein Condensate
• Stability and internal structure of vortices in spin-1 Bose-Einstein condensates with conserved magnetization
• Braiding and fusion of non-Abelian vortex anyons
• Collective dynamics of vortices in trapped Bose-Einstein condensates
• Topological interface physics of defects and textures in spinor Bose-Einstein condensates
• Rotating Dipolar Spin-1 Bose-Einstein Condensates
• A route to non-Abelian quantum turbulence in spinor Bose-Einstein condensates
• Fractional-charge vortex in a spinor Bose-Einstein condensate
• A damped point-vortex model for polar-core spin vortices in a ferromagnetic spin-1 Bose-Einstein condensate
• Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose-Einstein condensate
• Diffraction catastrophes threaded by quantized vortex skeletons caused by atom-optical aberrations induced in trapped Bose-Einstein condensates
• Solving the spin-2 Gross-Pitaevskii equation using exact nonlinear dynamics and symplectic composition
• Topological interfaces crossed by defects and textures of continuous and discrete point group symmetries in spin-2 Bose-Einstein condensates
• Collision dynamics of two-dimensional non-Abelian vortices
• Coherence simplices
• Textures and Vortices in d-Wave Fermi Condensates in Atomic Gases