title: Probing non-abelian statistics of Majorana fermions in ultracold atomic superfluid.
abstract: We propose an experiment to directly probe the non-abelian statistics of Majorana fermions by braiding them in an s-wave superfluid of ultracold atoms. We show that different orders of braiding operations give orthogonal output states that can be distinguished through Raman spectroscopy. Realization of Majorana states in an s-wave superfluid requires strong spin-orbital coupling and a controllable Zeeman field in the perpendicular direction. We present a simple laser configuration to generate the artificial spin-orbital coupling and the required Zeeman field in the dark-state subspace.
authors.affiliation: Laboratory of Quantum Information Technology and SPTE, South China Normal University, Guangzhou, China.
authors.forename: Shi-Liang
authors.initials: SL
authors.lastname: Zhu
authors.forename: L-B
authors.initials: LB
authors.lastname: Shao
authors.forename: Z D
authors.initials: ZD
authors.lastname: Wang
authors.forename: L-M
authors.initials: LM
authors.lastname: Duan