Published March 23, 2023
| Version v1
Journal article
Open
Multipartite Entanglement in a Microwave Frequency Comb
Creators
- 1. KTH Royal Institute of Technology
- 2. University of Chicago
- 3. Chalmers University of Technology
- 4. National Institute of Standard and Technology
Description
Significant progress has been made with multipartite entanglement of discrete qubits, but continuous variable systems may provide a more scalable path toward entanglement of large ensembles. We demonstrate multipartite entanglement in a microwave frequency comb generated by a Josephson parametric amplifier subject to a bichromatic pump. We find 64 correlated modes in the transmission line using a multifrequency digital signal processing platform. Full inseparability is verified in a subset of seven modes. Our method can be expanded to generate even more entangled modes in the near future.
Files
PhysRevLett.130.120601.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.130.120601
- Other
- oai:uchicago.tind.io:14252
Funding
- Knut and Alice Wallenberg Foundation