Published January 20, 2022
| Version v1
Journal article
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Squeezing and Multimode Entanglement of Surface Acoustic Wave Phonons
Creators
- 1. University of Chicago
- 2. KTH Royal Institute of Technology
- 3. Chalmers University of Technology
Description
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.
Files
PRXQuantum.3.010312.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PRXQuantum.3.010312
- Other
- oai:uchicago.tind.io:11494