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Reachability Analysis of Quantum Markov Decision Processes

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arxiv 1406.6146 v2 pith:VRITMMQX submitted 2014-06-24 quant-ph cs.LO

Reachability Analysis of Quantum Markov Decision Processes

classification quant-ph cs.LO
keywords quantumproblemsreachabilityanalysisdecisionmarkovqmdpsalgorithm
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce the notion of quantum Markov decision process (qMDP) as a semantic model of nondeterministic and concurrent quantum programs. It is shown by examples that qMDPs can be used in analysis of quantum algorithms and protocols. We study various reachability problems of qMDPs both for the finite-horizon and for the infinite-horizon. The (un)decidability and complexity of these problems are settled, or their relationships with certain long-standing open problems are clarified. We also develop an algorithm for finding optimal scheduler that attains the supremum reachability probability.

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