arXiv:2408.14439 · Physical Review A

Motional entanglement of remote optically levitated nanoparticles

N. Carlon Zambon, Massimiliano Rossi, Martin Frimmer, Lukáš Novotný, Carlos Gonzalez-Ballestero, Oriol Romero‐Isart, Andrei Militaru

Published Jan 21, 2025• 7 citations

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Abstract

We show how to entangle the motion of optically levitated nanoparticles in distant optical tweezers. The scheme consists in coupling the inelastically scattered light of each particle into transmission lines and directing it towards the other particle. The interference between this light and the background field introduces an effective coupling between the two particles while simultaneously reducing the effect of recoil heating. We analyze the system dynamics, showing that both transient and conditional entanglement between remote particles can be achieved under realistic experimental conditions.

DOI: 10.1103/physreva.111.013521

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