Correlation preserving map between bipartite states and temporal evolutions

Details Correlation preserving map between bipartite states and temporal evolutions Correlation preserving map between bipartite states and temporal evolutions

2011-07-12

arxiv.org/abs/1107.2186v2

Physics

Quantum Physics

Scientific paper

The Hilbert space formalism of quantum theory manifests a map between bipartite states and time evolutions, known as Jamiolkowski isomorphism. We extend this map in a physical setting to prove the equality of spatial correlations in bipartite systems and temporal correlations in local systems. We show that these correlations can be observed using weak measurements. This result has several practical and conceptual implications such as manifestation of state independent decoherence, the correspondence between Bell and Leggett-Garg inequalities, multipartite systems, the statistical properties of evolutions in large systems, and computational gain, in evaluation of spatial correlations in large systems.

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