Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Geometric entangling gates for coupled cavity system in decoherence-free
  subspaces   We propose a scheme to implement geometric entangling gates for two logical
qubits in a coupled cavity system in decoherence-free subspaces. Each logical
qubit is encoded with two atoms trapped in a single cavity and the geometric
entangling gates are achieved by cavity coupling and controlling the external
classical laser fields. Based on the coupled cavity system, the scheme allows
the scalability for quantum computing and relaxes the requirement for
individually addressing atoms.

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The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con