Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fully-connected network of superconducting qubits in a cavity   A fully-connected qubit network is considered, where every qubit interacts
with every other one. When the interactions between the qubits are homogeneous,
the system is a special case of the finite Lipkin-Meshkov-Glick model. We
propose a natural implementation of this model using superconducting qubits in
state-of-the-art circuit QED. The ground state, the low-lying energy spectrum
and the dynamical evolution are investigated. We find that, under realistic
conditions, highly entangled states of Greenberger-Horne-Zeilinger and W types
can be generated. We also comment on the influence of disorder on the system
and discuss the possibility of simulating complex quantum systems, such as
Sherrington-Kirkpatrick spin glasses, with superconducting qubit networks.

16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph