Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detecting topological edge states with the dynamics of a qubit   We consider the Su-Schrieffer-Heeger (SSH) chain, which has 0, 1, or 2
topological edge states depending on the ratio of the hopping parameters and
the parity of the chain length. We couple a qubit to one edge of the SSH chain
and a semi-infinite undimerized chain to the other, and evaluate the dynamics
of the qubit. By evaluating the decoherence rate of the qubit we can probe the
edge states of the SSH chain. The rate shows strong even-odd oscillations with
the number of sites reflecting the presence or absence of edge states. Hence,
the qubit acts as an efficient detector of the topological edge states of the
SSH model. This can be generalized to other topological systems.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
2
The categories of this paper are: math