Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Berry phase in a helical edge state: Sz nonconservation and
  transport signatures   Topological protection of edge state in quantum spin Hall systems relies only
on time-reversal symmetry. Hence, S z conservation on the edge can be relaxed
which can have an interferometric manifestation in terms of spin Berry phase.
Primarily it could lead to the generation of spin Berry phase arising from a
closed loop dynamics of electrons. Our work provides a minimal framework to
generate and detect these effects by employing both spin-unpolarized and
spin-polarized leads. We show that spin-polarized leads could lead to
resonances or anti-resonances in the two-terminal conductance of the
interferometer. We further show that the positions of these anti-resonances (as
a function of energy of the incident electron) get shifted owing to the
presence of spin Berry phase. Finally, we present simulations of a device setup
using KWANTpackage which put our theoretical predictions on firm footing.

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The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph