Tunable light-induced dipole-dipole interaction between optically levitated nanoparticles

Author(s)
Jakob Rieser, Mario A. Ciampini, Henning Rudolph, Nikolai Kiesel, Klaus Hornberger, Benjamin A. Stickler, Markus Aspelmeyer, Uroš Delić
Abstract

Arrays of optically trapped nanoparticles have emerged as a platform for the study of complex nonequilibrium phenomena. Analogous to atomic many-body systems, one of the crucial ingredients is the ability to precisely control the interactions between particles. However, the optical interactions studied thus far only provide conservative optical binding forces of limited tunability. In this work, we exploit the phase coherence between the optical fields that drive the light-induced dipole-dipole interaction to couple two nanoparticles. In addition, we effectively switch off the optical interaction and observe electrostatic coupling between charged particles. Our results provide a route to developing fully programmable many-body systems of interacting nanoparticles with tunable nonreciprocal interactions, which are instrumental for exploring entanglement and topological phases in arrays of levitated nanoparticles.

Organisation(s)
Quantum Optics, Quantum Nanophysics and Quantum Information
External organisation(s)
Vienna Center for Quantum Science and Technology (VCQ), Universität Duisburg-Essen, Österreichische Akademie der Wissenschaften (ÖAW)
Journal
Science
Volume
377
Pages
987-990
No. of pages
4
ISSN
0036-8075
DOI
https://doi.org/10.1126/science.abp9941
Publication date
08-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103021 Optics, 103025 Quantum mechanics
ASJC Scopus subject areas
General
Portal url
https://ucris.univie.ac.at/portal/en/publications/tunable-lightinduced-dipoledipole-interaction-between-optically-levitated-nanoparticles(f4884b76-28d5-4913-bc9b-5405a3b85d7f).html