Work

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

Year: 2005

Type: article

Abstract: 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.

Source: Physical Review B

DOI: 10.1103/physrevb.72.014508

Authors: P. B. Stiffell, M. J. Everitt, T. D. Clark, C. J. Harland, J. F. Ralph

Institutions: University of Sussex, University of Liverpool

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funder: Engineering and Physical Sciences Research Council

OpenAlex ID: W1990588346

FWCI: 0.344

Cites: 48

Cited by: 7

Related to: 10