Boojums in Rotating Two-Component Bose-Einstein Condensates

Abstract

A boojum is a topological defect that can form only on the surface of an ordered medium such as superfluid ${}^3$He and liquid crystals. We study theoretically boojums appearing between two phases with different vortex structures in two-component BECs where the intracomponent interaction is repulsive in one phase and attractive in the other. The detailed structure of the boojums is revealed by investigating its density distribution, effective superflow vorticity and pseudospin texture.

4 pages, 4 figures

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Cited by in corpus (13)

• Spinor Bose-Einstein condensates
• Vortices and Other Topological Solitons in Dense Quark Matter
• Nematic liquid crystal boojums with handles on colloidal handlebodies
• Wall-vortex composite solitons in two-component Bose-Einstein condensates
• Colorful boojums at the interface of a color superconductor
• Topological interface engineering and defect crossing in ultracold atomic gases
• Splitting of singly and doubly quantized composite vortices in two-component Bose-Einstein condensates
• Stability and internal structure of vortices in spin-1 Bose-Einstein condensates with conserved magnetization
• Quantum Elliptic Vortex in a Nematic-Spin Bose-Einstein Condensate
• Topological interface physics of defects and textures in spinor Bose-Einstein condensates
• D-brane solitons and boojums in field theory and Bose-Einstein condensates
• D-brane solitons in various dimensions
• Topological interfaces crossed by defects and textures of continuous and discrete point group symmetries in spin-2 Bose-Einstein condensates