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Topological spin textures in spinor Bose-Einstein condensates

Event Details

Event Dates: 

Monday, January 19, 2015 - 4:00pm

Seminar Location: 

  • JILA 10th Floor

Speaker Name(s): 

Azure Hansen

Speaker Affiliation(s): 

University of Rochester
Seminar Type/Subject

Scientific Seminar Type: 

  • Other

Seminar Type Other: 

Postdoc Candidate Seminar

Event Details & Abstract: 

We generate spin textures in an 87-Rb Bose-Einstein condensate with diverse symmetry and topological properties, including spin monopoles, non-Abelian vortices, fractional vortices, and coreless vortices. Using a coherent optical Raman process we transfer spatially-dependent phase and polarization properties from complex singular optical modes to the condensate. This allows us to engineer the internal and external momenta, superfluid velocities, and spatial spin distribution of the condensate as well as control the complex relative phases of the magnetic spin components. This work will be used to measure a new geometric phase in atom optics, study interactions between spin textures, and determine the ground state spin interactions in spin-2 87-Rb.