Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intrinsic decoherence effects on tripartite GHZ state generation using a
  trapped ion coupled to an optical cavity   We analyse the effects of intrinsic decoherence on the probability of
generating a tripartite GHZ state using a cool trapped ion coupled to a single
mode of the cavity field and interacting with a resonant laser field. Milburn
equation is solved for this tripartite system to obtain the time evolution of
density matrix as a function of cavity-ion coupling, laser-ion coupling, and
the size of unitary time step relative to the time scale determined by system
parameters. Starting with the system prepared initially in a separable state,
density matrix is used to calculate the probability of tripartite GHZ state
generation using coupling strengths reported in a recent experiment.

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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph