Phys. Rev. A 59, 1045–1055 (1999)Temporal quantum theoryReceived 14 September 1998; published in the issue dated February 1999 We propose a framework for temporal quantum theories for the purpose of describing states and observables associated with extended regions of space-time quantum mechanically. The proposal is motivated by Isham’s history theories. We discuss its relation to Isham’s history theories and to standard quantum mechanics. We generalize the Isham-Linden information entropy to the present context. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.59.1045
DOI:
10.1103/PhysRevA.59.1045
PACS:
03.65.Bz, 04.60.-m
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