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Quantum Downconversion and Multipartite Entanglement via a Mesoscopic Superconducting Quantum Interference Device Ring
journal contribution
posted on 2023-06-08, 00:39 authored by P B Stiffell, M J Everitt, TD Clark, C J Harland, J F RalphIn this paper we study, by analogy with quantum optics, the superconducting quantum interference device (SQUID) ring mediated quantum mechanical interaction of an input electromagnetic field oscillator mode with two or more output oscillator modes at subintegers of the input frequency. We show that through the nonlinearity of the SQUID ring multiphoton downconversion can take place between the input and output modes with the resultant output photons being created in an entangled state. We also demonstrate that the degree of this entanglement can be adjusted by means of a static magnetic flux which controls the strength of the interaction between these modes via the SQUID ring.
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Publication status
- Published
Journal
Physical Review BISSN
1098-0121Publisher
American Physical SocietyExternal DOI
Issue
1Volume
72Page range
014508Department affiliated with
- Engineering and Design Publications
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Quantum downconversion and multipartite entanglement via a mesoscopic superconducting quantum interference device ringFull text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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