%0 Generic %A Nascimbène, Sylvain %D 2013 %T Table of numerical values for the magnetic field direction and laser directions/polarizations leading to spin-independent lattices along z and y, and a spin-dependent lattice along x in the required configuration %U https://iop.figshare.com/articles/dataset/_Table_of_numerical_values_for_the_magnetic_field_direction_and_laser_directions_polarizations_leadi/1012022 %R 10.6084/m9.figshare.1012022.v1 %2 https://iop.figshare.com/ndownloader/files/1479847 %K latter acts %K Majorana fermions %K Feshbach molecules %K topological superfluid %K topological superfluidity %K 2 D %K topological superfluid boundaries %K fermionic atoms %K 1 D tube %K Cooper pair reservoir %K 1 D gas %K Majorana edge state %K perturbative limit %K ultracold fermionic atoms %K field direction %K superfluid gap %K lattice %K uniform gas %K topological superfluid phase %K 1 D system %K Atomic Physics %K Molecular Physics %X

Table B1. Table of numerical values for the magnetic field direction and laser directions/polarizations leading to spin-independent lattices along z and y, and a spin-dependent lattice along x in the required configuration.

Abstract

We propose an experimental implementation of a topological superfluid with ultracold fermionic atoms. An optical superlattice is used to juxtapose a 1D gas of fermionic atoms and a 2D conventional superfluid of condensed Feshbach molecules. The latter acts as a Cooper pair reservoir and effectively induces a superfluid gap in the 1D system. Combined with a spin-dependent optical lattice along the 1D tube and laser-induced atom tunnelling, we obtain a topological superfluid phase. In the regime of weak couplings to the molecular field and for a uniform gas, the atomic system is equivalent to Kitaev's model of a p-wave superfluid. Using a numerical calculation, we show that the topological superfluidity is robust beyond the perturbative limit and in the presence of a harmonic trap. Finally, we describe how to investigate some physical properties of the Majorana fermions located at the topological superfluid boundaries. In particular, we discuss how to prepare and detect a given Majorana edge state.

%I IOP Publishing