Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/12080

Title: Fully quantum-mechanical model of a SQUID ring coupled to an electromagnetic field
Authors: Everitt, Mark J.
Stiffell, P.B.
Clark, T.D.
Vourdas, A.
Ralph, J.F.
Prance, H.
Prance, R.J.
Issue Date: 2001
Publisher: © American Physical Society
Citation: EVERITT, M.J. ... et al., 2001. Fully quantum-mechanical model of a SQUID ring coupled to an electromagnetic field. Physical Review B, 63 (14), 7 pp.
Abstract: A quantum system comprising of a monochromatic electromagnetic field coupled to a superconducting quantum interference device (SQUID) ring with sinusoidal nonlinearity is studied. A magnetostatic flux Φx is also threading the SQUID ring, and is used to control the coupling between the two systems. It is shown that for special values of Φx the system is strongly coupled. The time evolution of the system is studied. It is shown that exchange of energy takes place between the two modes and that the system becomes entangled. A second quasiclassical model that treats the electromagnetic field classically is also studied. A comparison between the fully quantum-mechanical model with the electromagnetic field initially in a coherent state and the quasiclassical model is made.
Description: 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.63.144530
Version: Published
DOI: 10.1103/PhysRevB.63.144530
URI: https://dspace.lboro.ac.uk/2134/12080
Publisher Link: http://dx.doi.org/10.1103/PhysRevB.63.144530
ISSN: 0163-1829
Appears in Collections:Published Articles (Physics)

Files associated with this item:

File Description SizeFormat
PhysRevB.63.144530.pdfPublished version281.05 kBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.