Many-body coherence and entanglement probed by randomized correlation measurements
arXiv:2107.01686 · doi:10.1103/PhysRevResearch.4.043101
Abstract
We show how coherences between identical constituents of a many-body quantum state can be interrogated by suitable correlation functions, and identify sufficient conditions under which low-order correlators fully characterize many-body coherences, as controlled by the constituents' mutual distinguishability. Comparison of correlators of different order detects many-body entanglement.
arXiv comment5 pages, 2 figures + supplemental material (1 page)
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