Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear resonant behavior of the dispersive readout scheme for a
  superconducting flux qubit   A nonlinear resonant circuit comprising a SQUID magnetometer and a parallel
capacitor is studied as a readout scheme for a persistent-current (PC) qubit.
The flux state of the qubit is detected as a change in the Josephson inductance
of the SQUID magnetometer, which in turn mediates a shift in the resonance
frequency of the readout circuit. The nonlinearity and resulting hysteresis in
the resonant behavior are characterized as a function of the power of both the
input drive and the associated resonance peak response. Numerical simulations
based on a phenomenological circuit model are presented which display the
features of the observed nonlinearity.

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The categories of this paper are: stat
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
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The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom