Many-body coherence and entanglement probed by randomized correlation measurements

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 distin...

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Main Authors: Eric Brunner, Andreas Buchleitner, Gabriel Dufour
Format: Article
Language:English
Published: American Physical Society 2022-11-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.043101
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author Eric Brunner
Andreas Buchleitner
Gabriel Dufour
author_facet Eric Brunner
Andreas Buchleitner
Gabriel Dufour
author_sort Eric Brunner
collection DOAJ
description 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. The comparison of correlators of different order detects many-body entanglement.
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spelling doaj.art-9336aaebfda84bd38af1a6c543158ad62024-04-12T17:26:04ZengAmerican Physical SocietyPhysical Review Research2643-15642022-11-014404310110.1103/PhysRevResearch.4.043101Many-body coherence and entanglement probed by randomized correlation measurementsEric BrunnerAndreas BuchleitnerGabriel DufourWe 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. The comparison of correlators of different order detects many-body entanglement.http://doi.org/10.1103/PhysRevResearch.4.043101
spellingShingle Eric Brunner
Andreas Buchleitner
Gabriel Dufour
Many-body coherence and entanglement probed by randomized correlation measurements
Physical Review Research
title Many-body coherence and entanglement probed by randomized correlation measurements
title_full Many-body coherence and entanglement probed by randomized correlation measurements
title_fullStr Many-body coherence and entanglement probed by randomized correlation measurements
title_full_unstemmed Many-body coherence and entanglement probed by randomized correlation measurements
title_short Many-body coherence and entanglement probed by randomized correlation measurements
title_sort many body coherence and entanglement probed by randomized correlation measurements
url http://doi.org/10.1103/PhysRevResearch.4.043101
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AT andreasbuchleitner manybodycoherenceandentanglementprobedbyrandomizedcorrelationmeasurements
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