Quantum gates and multipartite entanglement resonances realized by non-uniform cavity motion

TL;DR

This paper explores how non-uniform cavity motion can generate and enhance multipartite entanglement in quantum fields, linking quantum information with relativistic effects and gravitational analogs.

Contribution

It introduces specific setups where cavity motion acts as multipartite quantum gates, demonstrating resonant enhancement of entanglement for bosons and fermions.

Findings

Multipartite entanglement can be generated by cavity motion.

Bosonic correlations can be resonantly enhanced.

Links established between quantum information and curved spacetime physics.

Abstract

We demonstrate the presence of genuine multipartite entanglement between the modes of quantum fields in non-uniformly moving cavities. The transformations generated by the cavity motion can be considered as multipartite quantum gates. We present two setups for which multi-mode entanglement can be generated for bosons and fermions. As a highlight we show that the bosonic genuine multipartite correlations can be resonantly enhanced. Our results provide fundamental insights into the structure of Bogoliubov transformations and suggest strong links between quantum information, quantum fields in curved spacetimes and gravitational analogs by way of the equivalence principle.