Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological edge states and pumping in a chain of coupled
  superconducting qubits   Topological insulators have inspired the study with various quantum
simulators. Exploiting the tunability of the qubit frequency and qubit-qubit
coupling, we show that a superconducting qubit chain can simulate various
topological band models. When the system is restricted to the single-spin
excitation subspace, the Su-Schrieffer-Heeger (SSH) model can be equivalently
simulated by alternating the coupling strength between neighboring qubits. The
existence of topological edge states in this qubit chain is demonstrated in the
quench dynamics after the first qubit is excited. This excitation propagates
along the chain where the qubit-qubit coupling is homogeneous. In contrast, in
our qubit chain, the spin-up state localizes at the first qubit and the rest
qubits remain in the spin-down state. We further show that the spin-up state
can be transported along the chain by modulating the coupling strengths and the
qubit frequencies. This demonstrates adiabatic pumping based on the Rice-Mele
model. Moreover, we also discuss possible ways to construct other topological
models with different topological phenomena within the current technology of
superconducting qubits.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs