Fast Quantum Interference of a Nanoparticle via Optical Potential Control

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 signific...

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Veröffentlicht in:arXiv.org 2022-07
Hauptverfasser: Neumeier, Lukas, Ciampini, Mario A, Romero-Isart, Oriol, Aspelmeyer, Markus, Kiesel, Nikolai
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description 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.
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subjects Atomic properties
Interference
Nanoparticles
Physics - Mesoscale and Nanoscale Physics
Physics - Quantum Physics
Room temperature
Wave packets
title Fast Quantum Interference of a Nanoparticle via Optical Potential Control
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