Rotationally Induced Quantum Non-Locality

by Prof. Marko Toros

University of Ljubljana

at Quantum optics seminar

Wed, 11 Jun 2025, 16:00
Zoom only

Abstract

Zoom link: https://us02web.zoom.us/j/87248421737?pwd=WzoD1IYQJTvvMynJ0A3ZDQdaO1JFsO.1

Abstract:
Many phenomena and fundamental predictions, ranging from Hawking radiation to the early evolution of the Universe rely on the interplay between quantum mechanics and gravity or more generally, quantum mechanics in curved spacetimes. However, our understanding is hindered by the lack of experiments that actually allow us to probe quantum mechanics in such regimes in a repeatable and accessible way.
In this talk we review recent results of quantum optics on rotating platforms that are forming the link between theoretical ideas about quantum mechanics in curved space and the current experimental realities. We will discuss how ostensibly quantum phenomena can be controlled with low-frequency mechanical rotations, where the coupling can be traced back to the underlying spacetime metric. The experimental data conclusively shows that low-frequency mechanical rotations affect the bunching behaviour of photon pairs [1], and can transform photons from perfectly indistinguishable (bosonic behaviour), to perfectly distinguishable (fermionic behavior) [2,3]. Furthermore, we predict the generation of intraparticle entanglement with low frequency mechanical rotations [4], and of rotationally-induced quantum non-local entanglement, which can maximally violate the Bell-Clauser-Horne-Shimony-Holt inequality in an experimentally accessible regime [5].

[1] Phys. Rev. Lett. 123, 110401 (2019)
[2] Phys. Rev. A 101, 043837 (2020)
[3] Phys. Rev. Research 5, L022005 (2023)
[4] Phys. Rev. Lett. 129, 260401 (2022)
[5] arXiv:2407.14276 (2024)

Created on 07-06-2025 by Folman, Ron (folman)
Updaded on 07-06-2025 by Folman, Ron (folman)