Universal Correlations in Chaotic Many-Body Quantum States: Fock-Space Formulation of Berry’s Random Wave Model

URN to cite this document:: urn:nbn:de:bvb:355-epub-745912
DOI to cite this document:: 10.5283/epub.74591

Schöppl, Florian

; Dubertrand, Rémy

; Urbina, Juan Diego

; Richter, Klaus

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Date of publication of this fulltext: 09 Jan 2025 08:09

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Abstract

The apparent randomness of chaotic eigenstates in interacting quantum systems hides subtle correlations dynamically imposed by their finite energy per particle. These correlations are revealed when Berry’s approach for chaotic eigenfunctions in single-particle systems is lifted into many-body space. We achieve this by a many-body semiclassical analysis, appropriate for the mesoscopic regime of a ...