TY - DATA
T1 - Position-resolved photoemission spectrum calculated with the parameters of figure 5
PY - 2013/06/24
AU - Sylvain Nascimbène
UR - https://figshare.com/articles/_Position_resolved_photoemission_spectrum_calculated_with_the_parameters_of_figure_a_href_http_iopsc/1012017
DO - 10.6084/m9.figshare.1012017.v1
L4 - https://ndownloader.figshare.com/files/1479842
KW - Majorana edge state
KW - ultracold fermionic atoms
KW - 1 D gas
KW - Cooper pair reservoir
KW - topological superfluid
KW - topological superfluid boundaries
KW - 1 D tube
KW - topological superfluid phase
KW - 1 D system
N2 - Figure 6. Position-resolved photoemission spectrum calculated with the parameters of figure 5. The Majorana states probed at zero energy are localized at the edges of the topological superfluid. 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.
ER -