Quantum Computational Logics. A Survey

Details Quantum Computational Logics. A Survey Quantum Computational Logics. A Survey

2003-05-06

arxiv.org/abs/quant-ph/0305029v1

Physics

Quantum Physics

35 pages, 2 figures

Scientific paper

Quantum computation has suggested new forms of quantum logic, called quantum computational logics. The basic semantic idea is the following: the meaning of a sentence is identified with a quregister, a system of qubits, representing a possible pure state of a compound quantum system. The generalization to mixed states, which might be useful to analyse entanglement-phenomena, is due to Gudder. Quantum computational logics represent non standard examples of unsharp quantum logic, where the non-contradiction principle is violated, while conjunctions and disjunctions are strongly non-idempotent. In this framework, any sentence of the language gives rise to a quantum tree: a kind of quantum circuit that transforms the quregister associated to the atomic subformulas of the sentence into the quregister associated to the sentence.

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