Force-Gradient Sensing and Entanglement via Feedback Cooling of Interacting Nanoparticles

Autor(en)

Henning Rudolph, Uroš Delić, Markus Aspelmeyer, Klaus Hornberger, Benjamin A. Stickler

Abstrakt

We show theoretically that feedback cooling of two levitated, interacting nanoparticles enables differential sensing of forces and the observation of stationary entanglement. The feedback drives the two particles into a stationary, nonthermal state which is susceptible to inhomogeneous force fields and which exhibits entanglement for sufficiently strong interparticle couplings. We predict that force-gradient sensing at the zepto-Newton per micron range is feasible and that entanglement due to the Coulomb interaction between charged particles can be realistically observed in state-of-the-art setups.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Universität Duisburg-Essen, Österreichische Akademie der Wissenschaften (ÖAW)

Journal

Physical Review Letters

Band

129

Anzahl der Seiten

7

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.129.193602

Publikationsdatum

11-2022

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/3360971d-8d5e-4bec-9e41-65dcd54627b5