|
| related topics |
| {observables, space, algebra} |
| {let, theorem, proof} |
|
A presentation of Quantum Logic based on an "and then" connective
Daniel Lehmann
abstract: When a physicist performs a quantic measurement, new information about the
system at hand is gathered. This paper studies the logical properties of how
this new information is combined with previous information. It presents Quantum
Logic as a propositional logic under two connectives: negation and the "and
then" operation that combines old and new information. The "and then"
connective is neither commutative nor associative. Many properties of this
logic are exhibited, and some small elegant subset is shown to imply all the
properties considered. No independence or completeness result is claimed.
Classical physical systems are exactly characterized by the commutativity, the
associativity, or the monotonicity of the "and then" connective. Entailment is
defined in this logic and can be proved to be a partial order. In orthomodular
lattices, the operation proposed by Finch (1969) satisfies all the properties
studied in this paper. All properties satisfied by Finch's operation in modular
lattices are valid in Hilbert Space Quantum Logic. It is not known whether all
properties of Hilbert Space Quantum Logic are satisfied by Finch's operation in
modular lattices. Non-commutative, non-associative algebraic structures
generalizing Boolean algebras are defined, ideals are characterized and a
homomorphism theorem is proved.
- oai_identifier:
- oai:arXiv.org:quant-ph/0701113
- categories:
- quant-ph cs.LO math.LO
- comments:
- 28 pages. Submitted
- doi:
- 10.1093/logcom/exm054
- arxiv_id:
- quant-ph/0701113
- journal_ref:
- Journal of Logic and Computation 18 (1): 59-76 Feb. 2008
- report_no:
- Short version in Leibniz Center, School of Engineering, Hebrew U.
TR-2007-1
- created:
- 2007-01-16
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