Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of Coupled Qubits Interacting with an Off-Resonant Cavity   We study a model for a pair of qubits which interact with a single
off-resonant cavity mode and, in addition, exhibit a direct inter-qubit
coupling. Possible realizations for such a system include coupled
superconducting qubits in a line resonator as well as exciton states or
electron spin states of quantum dots in a cavity. The emergent dynamical
phenomena are strongly dependent on the relative energy scales of the
inter-qubit coupling strength, the coupling strength between qubits and cavity
mode, and the cavity mode detuning. We show that the cavity mode dispersion
enables a measurement of the state of the coupled-qubit system in the
perturbative regime. We discuss the effect of the direct inter-qubit
interaction on a cavity-mediated two-qubit gate. Further, we show that for
asymmetric coupling of the two qubits to the cavity, the direct inter-qubit
coupling can be controlled optically via the ac Stark effect.

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The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc