Fast quantum interference of a nanoparticle via optical potential control

Autor(en)

Lukas Neumeier, Mario A. Ciampini, Oriol Romero-Isart, Markus Aspelmeyer, Nikolai Kiesel

Abstrakt

We introduce and theoretically analyze a scheme to prepare and detect non-Gaussian quantum states of an optically levitated particle via the interaction with a light pulse that generates cubic and inverted potentials. We show that this allows operating on short time- and lengthscales, which significantly reduces the demands on decoherence rates in such experiments. Specifically, our scheme predicts the observation of interference of nanoparticles with a mass above $10^8$ atomic mass units delocalised over several nanometers, on timescales of milliseconds, when operated at vacuum levels around $10^{-10}$~mbar and at room temperature. We discuss the prospect of using this approach for coherently splitting the wavepacket of massive dielectric objects using neither projective measurements nor an internal level structure.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), Leopold-Franzens-Universität Innsbruck

Journal

Proceedings of the National Academy of Sciences of the United States of America

Band

121

Anzahl der Seiten

6

ISSN

0027-8424

DOI

https://doi.org/10.48550/arXiv.2207.12539

Publikationsdatum

01-2024

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik, 103015 Kondensierte Materie

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8c80c67e-33d1-46f8-a70f-77320990badc