Optoacoustic Entanglement in a Continuous Brillouin-Active Solid State System

Zhu C, Genes C, Stiller B (2024)


Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 133

Article Number: 203602

Journal Issue: 20

DOI: 10.1103/PhysRevLett.133.203602

Abstract

Entanglement in hybrid quantum systems comprised of fundamentally different degrees of freedom, such as light and mechanics, is of interest for a wide range of applications in quantum technologies. Here, we propose to engineer bipartite entanglement between traveling acoustic phonons in a Brillouin active solid state system and the accompanying light wave. The effect is achieved by applying optical pump pulses to state-of-the-art waveguides, exciting a Brillouin Stokes process. This pulsed approach, in a system operating in a regime orthogonal to standard optomechanical setups, allows for the generation of entangled photon-phonon pairs, resilient to thermal fluctuations. We propose an experimental platform where readout of the optoacoustics entanglement is done by the simultaneous detection of Stokes and anti-Stokes photons in a two-pump configuration. The proposed mechanism presents an important feature in that it does not require initial preparation of the quantum ground state of the phonon mode.

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How to cite

APA:

Zhu, C., Genes, C., & Stiller, B. (2024). Optoacoustic Entanglement in a Continuous Brillouin-Active Solid State System. Physical Review Letters, 133(20). https://doi.org/10.1103/PhysRevLett.133.203602

MLA:

Zhu, Changlong, Claudiu Genes, and Birgit Stiller. "Optoacoustic Entanglement in a Continuous Brillouin-Active Solid State System." Physical Review Letters 133.20 (2024).

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