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Trapped Ion Quantum Computing Superconducting Qubits Quantum Simulation

Squeezing and multimode entanglement of surface acoustic wave phonons

arXiv

Authors: Gustav Andersson, Shan W. Jolin, Marco Scigliuzzo, Riccardo Borgani, Mats O. Tholén, J. C. Rivera Hernández, Vitaly Shumeiko, David B. Haviland, Per Delsing

Year

2020

Paper ID

22306

Status

Preprint

Abstract Read

~2 min

Abstract Words

103

Citations

N/A

Abstract

Exploiting multiple modes in a quantum acoustic device could enable applications in quantum information in a hardware-efficient setup, including quantum simulation in a synthetic dimension and continuous-variable quantum computing with cluster states.We develop a multimode surface acoustic wave (SAW) resonator with a superconducting quantum interference device (SQUID) integrated in one of the Bragg reflectors. The interaction with the SQUID-shunted mirror gives rise to coupling between the more than 20 accessible resonator modes. We exploit this coupling to demonstrate two-mode squeezing of SAW phonons, as well as four-mode multipartite entanglement. Our results open avenues for continuous-variable quantum computing in a compact hybrid quantum system.

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Exploiting multiple modes in a quantum acoustic device could enable applications in quantum information in a hardware-efficient setup, including quantum simulation in a...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2007.05826 [2] arXiv https://arxiv.org/abs/2007.05826 [3] Publisher https://arxiv.org/abs/2007.05826

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