Complex Probabilities on R^N as Real Probabilities on C^N and an Application to Path Integrals

Details Complex Probabilities on R^N as Real Probabilities on C^N and an Application to Path Integrals Complex Probabilities on R^N as Real Probabilities on C^N and an Application to Path Integrals

2002-10-29

arxiv.org/abs/quant-ph/0210195v1

Phys.Rev.Lett. 89 (2002) 240201

Physics

Quantum Physics

4 pages, 0 figures

Scientific paper

10.1103/PhysRevLett.89.240201

We establish a necessary and sufficient condition for averages over complex valued weight functions on R^N to be represented as statistical averages over real, non-negative probability weights on C^N. Using this result, we show that many path-integrals for time-ordered expectation values of bosonic degrees of freedom in real-valued time can be expressed as statistical averages over ensembles of paths with complex-valued coordinates, and then speculate on possible consequences of this result for the relation between quantum and classical mechanics.

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