Quantifying two-mode entanglement of bosonic Gaussian states from their full counting statistics
Quantum Physics
2025-09-09 v2 Quantum Gases
Abstract
We study the entanglement properties of two-mode bosonic Gaussian states based on their multi-mode counting statistics. We exploit the idea that measuring high-order correlations of particle numbers can reveal entanglement without making any assumptions about the coherence of the fields. We show that the two- and four-body number correlations are sufficient to fully characterize the entanglement of two-mode bosonic Gaussian states for which each mode exhibits a thermal distribution. In addition, we derive an entanglement witness based on two-body correlations alone. Our findings are of great importance because it becomes possible to reveal entanglement in a series of recent experiments.
Keywords
Cite
@article{arxiv.2503.09555,
title = {Quantifying two-mode entanglement of bosonic Gaussian states from their full counting statistics},
author = {Victor Gondret and Clothilde Lamirault and Rui Dias and Charlie Leprince and Christoph I. Westbrook and David Clément and Denis Boiron},
journal= {arXiv preprint arXiv:2503.09555},
year = {2025}
}
Comments
4+4 pages, accepted version