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Intrinsic decoherence effects on tripartite GHZ state generation using a trapped ion coupled to an optical cavity

S. Shelly Sharma·N. K. Sharma
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Abstract

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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S. Shelly Sharma, N. K. Sharma. 2004-11-06. Intrinsic decoherence effects on tripartite GHZ state generation using a trapped ion coupled to an optical cavity. https://doi.org/10.1088/1464-4266/7/8/005

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