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Twisted vortex beams for tailored topological spin textures in spinor Bose--Einstein condensates

Maitreyi Jayaseelan, Justin T. Schultz, Joseph D. Murphree +2 more

Bulletin of the American Physical SocietyMay 30, 20180 citations

Topological interface physics in spinor Bose-Einstein condensates

Magnus O. Borgh, Janne Ruostekoski

Bulletin of the American Physical SocietyJun 4, 20130 citations

Evolution of Spin Textures in a Spinor Bose Einstein Condensate

Jennie Guzman, Mukund Vengalattore, Sabrina R. Leslie +1 more

Bulletin of the American Physical SocietyJun 9, 20070 citations

Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate

M O Borgh, J Lovegrove, J Ruostekoski

We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions. This provides an experimentally accessible means for studying the interface physics of topological defects and textures. Using the spin-1 Bose–Einstein condensate as an example, we find spinor wave functions that represent defects and textures continuously connecting across the interface between polar and ferromagnetic regions induced by spatially varying Zeeman shifts. By numerical energy-minimization we characterize the defect core structures and determine the energetic stability. The techniques proposed could potentially be used in the laboratory to emulate complex interface physics arising, e.g., in cosmological and condensed-matter contexts in both uniform and lattice systems.We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions. This provides an experimentally accessible means for studying the interface physics of topological defects and textures. Using the spin-1 Bose–Einstein condensate as an example, we find spinor wave functions that represent defects and textures continuously connecting across the interface between polar and ferromagnetic regions induced by spatially varying Zeeman shifts. By numerical energy-minimization we characterize the defect core structures and determine the energetic stability. The techniques proposed could potentially be used in the laboratory to emulate complex interface physics arising, e.g., in cosmological and condensed-matter contexts in both uniform and lattice systems.

arXiv:1401.6949New Journal of PhysicsMay 22, 201411 citations

Experimenting with Topological States of Bose-Einstein Condensates

Chandra Raman

Dec 1, 20060 citations

4 Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose-Einstein condensate

Magnus O. Borgh, J. M. Lovegrove, Janne Ruostekoski

We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions. This provides an experimentally accessible means for studying the interface physics of topological defects and textures. Using the spin-1 Bose–Einstein condensate as an example, we find spinor wave functions that represent defects and textures continuously connecting across the interface between polar and ferromagnetic regions induced by spatially varying Zeeman shifts. By numerical energy-minimization we characterize the defect core structures and determine the energetic stability. The techniques proposed could potentially be used in the laboratory to emulate complex interface physics arising, e.g., in cosmological and condensed-matter contexts in both uniform and lattice systems.We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions. This provides an experimentally accessible means for studying the interface physics of topological defects and textures. Using the spin-1 Bose–Einstein condensate as an example, we find spinor wave functions that represent defects and textures continuously connecting across the interface between polar and ferromagnetic regions induced by spatially varying Zeeman shifts. By numerical energy-minimization we characterize the defect core structures and determine the energetic stability. The techniques proposed could potentially be used in the laboratory to emulate complex interface physics arising, e.g., in cosmological and condensed-matter contexts in both uniform and lattice systems.

May 22, 20146 citations

Zeeman engineering in spinor Bose-Einstein condensates: topological interfaces and confined textures

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Zeeman engineering in spinor Bose-Einstein condensates: topological interfaces and confined textures

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