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Linearly Positive Histories: Probabilities for a Robust Family of Sequences of Quantum Events

Sheldon Goldstein·Don N. Page
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Abstract

Nonnegative probabilities that obey the sum rules may be assigned to a much wider family of sets of histories than decohering histories. The resulting {\it linearly positive histories} avoid the highly restrictive decoherence conditions and yet give the same probabilities when those conditions apply. Thus linearly positive histories are a broad extension of decohering histories. Moreover, the resulting theory is manifestly time-reversal invariant.

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Sheldon Goldstein, Don N. Page. 1995-03-03. Linearly Positive Histories: Probabilities for a Robust Family of Sequences of Quantum Events. https://doi.org/10.1103/physrevlett.74.3715

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