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Irreversibility in Quantum Computational Logics |
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PP: 171-191 |
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Author(s) |
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Giuseppe Sergioli,
Roberto Giuntini,
Francesco Paoli,
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Abstract |
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| In this paper we discuss an approach to quantum computation where the basic information
units (qubits and quregisters) are replaced by density operators and the restriction
to unitary operators as logical gates is lifted through the introduction of the more general
concept of quantum operation ( [17], [1]). This perspective is especially suited to
provide a physical description of open systems. In particular, we illustrate the advantages
of this approach over the standard one and show that it can account for two important
irreversible transformations already considered in the literature: the irreversible
conjunction IAND and the fuzzy-like Łukasiewicz disjunction |
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