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Trapped Ion Quantum Computing

Macroscopic quantum test with bulk acoustic wave resonators

arXiv
Authors: Björn Schrinski, Yu Yang, Uwe von Lüpke, Marius Bild, Yiwen Chu, Klaus Hornberger, Stefan Nimmrichter, Matteo Fadel

Year

2022

Paper ID

59334

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

Recently, solid-state mechanical resonators have become a platform for demonstrating non-classical behavior of systems involving a truly macroscopic number of particles. Here, we perform the most macroscopic quantum test in a mechanical resonator to date, which probes the validity of quantum mechanics at the microgram mass scale. This is done by a direct measurement of the Wigner function of a high-overtone bulk acoustic wave resonator mode, monitoring the gradual decay of negativities over tens of microseconds. While the obtained macroscopicity of μ= 11.3 is on par with state-of-the-art atom interferometers, future improvements of mode geometry and coherence times could confirm the quantum superposition principle at unprecedented scales.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2022 reference point for readers tracking recent quantum research.
  • Recently, solid-state mechanical resonators have become a platform for demonstrating non-classical behavior of systems involving a truly macroscopic number of particles.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2209.06635 [2] arXiv https://arxiv.org/abs/2209.06635 [3] Publisher https://arxiv.org/abs/2209.06635

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