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Reachability Probabilities of Quantum Markov Chains

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arxiv 1304.0060 v2 pith:RJ6K3PDU submitted 2013-03-30 quant-ph

Reachability Probabilities of Quantum Markov Chains

classification quant-ph
keywords reachabilitybsccchainsmarkovpersistenceprobabilitiesquantumrepeated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This paper studies three kinds of long-term behaviours, namely reachability, repeated reachability and persistence, of quantum Markov chains (qMCs). As a stepping-stone, we introduce the notion of bottom strongly connected component (BSCC) of a qMC and develop an algorithm for finding BSCC decompositions of the state space of a qMC. As the major contribution, several (classical) algorithms for computing the reachability, repeated reachability and persistence probabilities of a qMC are presented, and their complexities are analysed.

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