Classical capacity of quantum channels with general Markovian correlated noise
نویسندگان
چکیده
The classical capacity of a quantum channel with arbitrary Markovian correlated noise is evaluated. For an irreducible and aperiodic Markov Chain, the channel is forgetful, and one retrieves the known expression [15] for the capacity. For the more general case of a channel with long-term memory, which corresponds to a Markov chain which does not converge to equilibrium, the capacity is expressed in terms of the communicating classes of the Markov chain. ∗email: [email protected]. †email:[email protected]; on leave from the Dublin Institute of Advanced Studies, School of Theoretical Physics, 10 Burlington Road, Dublin 4, Ireland
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