Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A gate-tunable, field-compatible fluxonium   Circuit quantum electrodynamics, where photons are coherently coupled to
artificial atoms built with superconducting circuits, has enabled the
investigation and control of macroscopic quantum-mechanical phenomena in
superconductors. Recently, hybrid circuits incorporating semiconducting
nanowires and other electrostatically-gateable elements have provided new
insights into mesoscopic superconductivity. Extending the capabilities of
hybrid flux-based circuits to work in magnetic fields would be especially
useful both as a probe of spin-polarized Andreev bound states and as a possible
platform for topological qubits. The fluxonium is particularly suitable as a
readout circuit for topological qubits due to its unique persistent-current
based eigenstates. In this Letter, we present a magnetic-field compatible
hybrid fluxonium with an electrostatically-tuned semiconducting nanowire as its
non-linear element. We operate the fluxonium in magnetic fields up to 1T and
use it to observe the $\varphi_0$-Josephson effect. This combination of
gate-tunability and field-compatibility opens avenues for the exploration and
control of spin-polarized phenomena using superconducting circuits and enables
the use of the fluxonium as a readout device for topological qubits.

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The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom