title: Majorana edge States in atomic wires coupled by pair hopping.
abstract: We present evidence for Majorana edge states in a number conserving theory describing a system of spinless fermions on two wires that are coupled by pair hopping. Our analysis is based on a combination of a qualitative low energy approach and numerical techniques using the density matrix renormalization group. In addition, we discuss an experimental realization of pair-hopping interactions in cold atom gases confined in optical lattices.
authors.affiliation: Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria and Institute for Theoretical Physics, Innsbruck University, A-6020 Innsbruck, Austria.
authors.forename: Christina V
authors.initials: CV
authors.lastname: Kraus
authors.forename: Marcello
authors.initials: M
authors.lastname: Dalmonte
authors.forename: Mikhail A
authors.initials: MA
authors.lastname: Baranov
authors.forename: Andreas M
authors.initials: AM
authors.lastname: Läuchli
authors.forename: P
authors.initials: P
authors.lastname: Zoller