Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time-Reversal Invariant Topological Superconductivity Induced by
  Repulsive Interactions in Quantum Wires   We consider a model for a one-dimensional quantum wire with Rashba spin-orbit
coupling and repulsive interactions, proximity coupled to a conventional s-wave
superconductor. Using a combination of Hartree-Fock and density matrix
renormalization group calculations, we show that for sufficiently strong
interactions in the wire, a time-reversal invariant topological superconducting
phase can be stabilized in the absence of an external magnetic field. This
phase supports two zero-energy Majorana bound states at each end, which are
protected by time-reversal symmetry. The mechanism for the formation of this
phase is a reversal of the sign of the effective pair potential in the wire,
due to the repulsive interactions. We calculate the differential conductance
into the wire and its dependence on an applied magnetic field using the
scattering-matrix formalism. The behavior of the zero-bias anomaly as a
function of the field direction can serve as a distinct experimental signature
of the topological phase.

27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
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The categories of this paper are: eess
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin