Surface Majorana modes in ultra-cold fermion systems with unconventional Cooper pairings

ORAL

Abstract

The rapid progress of dipolar fermions provides a new opportunity to investigate unconventional Cooper pairings and exotic topological properties. We study the zero energy modes for the single and multiple-component dipolar gases along the surface perpendicular to the z-direction, which are a flat band of Majorana fermions. Under time-reversal symmetry breaking perturbations, such as vortices, the degeneracy of the surface Majorana modes is lifted. We also investigated the spontaneous time-reversal symmetry breaking effect in such systems.

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Authors

  • Yi Li

    Department of Physics, University of California, San Diego

  • Congjun Wu

    The department of Physics, Univeristy of California, San Diego, The Department of Physics, Univeristy of California, San Diego, The Department of Physics, University of California, San Diego, Department of Physics, University of California, San Diego, UC San Diego, The Department of Physics, University of Science and Technology of China, University of California, San Diego