Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sub-Poissonian photon statistics in a strongly coupled single-qubit
  laser   We investigate qubit lasing in the strong coupling limit. The qubit is given
by a Cooper-pair box, and population inversion is established by an additional
third state, which can be addressed via quasiparticle tunneling. The coupling
strength between oscillator and qubit is assumed to be much higher than the
quasiparticle tunneling rate. We find that the photon number distribution is
sub-Poissonian in this strong coupling limit.

12
The categories of this paper are: nucl-th
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The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int