A Quantum Information Perspective on Many-Body Dispersive Forces

Despite its ubiquity, many-body dispersion remains poorly understood. Here we investigate the distribution of entanglement in quantum Drude oscillator assemblies, minimal models for dispersion bound systems. We analytically determine a relation between entanglement and energy, showing how the entang...

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Bibliographic Details
Main Authors Willby, Christopher, Kiffner, Martin, Tindall, Joseph, Crain, Jason, Jaksch, Dieter
Format Journal Article
LanguageEnglish
Published 04.07.2024
Subjects
Physics - Quantum Physics
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Summary:Despite its ubiquity, many-body dispersion remains poorly understood. Here we investigate the distribution of entanglement in quantum Drude oscillator assemblies, minimal models for dispersion bound systems. We analytically determine a relation between entanglement and energy, showing how the entanglement distribution governs dispersive bonding. This suggests that the monogamy of entanglement explains deviations of multipartite dispersive binding energies compared to the commonly used pairwise prediction. We illustrate our findings using examples of a trimer and extended crystal lattices.
DOI:10.48550/arxiv.2407.04111