Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Proposed Detection of the Topological Phase in Ring-Shaped
  Semiconductor-Superconductor Nanowires Using Coulomb Blockade Transport   In semiconductor-superconductor hybrid structures a topological phase
transition is expected as a function of chemical potential or magnetic field
strength. We show that signatures of this transition can be observed in
nonlinear Coulomb blockade transport through a ring shaped structure. In
particular, for a fixed electron parity of the ring, the flux periodicity of
the neutral excitation spectrum changes from the usual h/2e periodicity to a
characteristic h/e periodicity when tuning the system from the topologically
trivial to the nontrivial phase. We relate the h/e periodicity to the recently
predicted 4\pi periodicity of the Josephson current across a junction formed by
two topological superconductors.

16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga