A Quantum Information Perspective on Many-Body Dispersive Forces

Christopher Willby, Martin Kiffner, Joseph Tindall, Jason Crain, and Dieter Jaksch.

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.

Cite as BibTex

@misc{willby2024quantuminformationperspectivemanybody,
title={A Quantum Information Perspective on Many-Body Dispersive Forces},
author={Christopher Willby and Martin Kiffner and Joseph Tindall and Jason Crain and Dieter Jaksch},
year={2024},
eprint={2407.04111},
archivePrefix={arXiv},
primaryClass={quant-ph},
url={https://arxiv.org/abs/2407.04111},
}

Leave a comment

AncoraThemes © 2025. All Rights Reserved.

QCFD © 2025. All Rights Reserved. PRIVACY POLICY

European Union Flag

The QCFD (Quantum Computational Fluid Dynamics) project is funded under the European Union’s Horizon Programme (HORIZON-CL4-2021-DIGITAL-EMERGING-02-10), Grant Agreement 101080085 QCFD.