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Quantum downconversion and multipartite entanglement via a mesoscopic superconducting quantum interference device ring

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posted on 08.04.2013, 09:30 authored by P.B. Stiffell, Mark EverittMark Everitt, T.D. Clark, C.J. Harland, J.F. Ralph
In 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.

History

School

  • Science

Department

  • Physics

Citation

STIFFELL, P.B. ... et al., 2005. Quantum downconversion and multipartite entanglement via a mesoscopic superconducting quantum interference device ring. Physical Review B, 72 (1), 11 pp.

Publisher

© American Physical Society

Version

VoR (Version of Record)

Publication date

2005

Notes

This article was published in the journal, Physical Review B [© American Physical Society] and the definitive version is available at: http://dx.doi.org/10.1103/PhysRevB.72.014508

ISSN

1098-0121

Language

en

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