Quantum Statistics and Entanglement of Two Electromagnetic Field Modes Coupled via a Mesoscopic SQUID Ring

Abstract

In this paper we investigate the behaviour of a fully quantum mechanical system consisting of a mesoscopic SQUID ring coupled to one or two electromagnetic field modes. We show that we can use a static magnetic flux threading the SQUID ring to control the transfer of energy, the entanglement and the statistical properties of the fields coupled to the ring. We also demonstrate that at, and around, certain values of static flux the effective coupling between the components of the system is large. The position of these regions in static flux is dependent on the energy level structure of the ring and the relative field mode frequencies, In these regions we find that the entanglement of states in the coupled system, and the energy transfer between its components, is strong.

15 pages, 19 figures, Uploaded as implementing a policy of arXiving old papers

References in corpus (1)

• A Fully Quantum Mechanical Model of a SQUID Ring Coupled to an Electromagnetic Field

Cited by in corpus (4)

• Superconducting Analogues of Quantum Optical Phenomena: Macroscopic Quantum Superpositions and Squeezing in a SQUID Ring
• Quantum Down Conversion and Multipartite Entanglement via a Mesoscopic SQUID Ring
• Energy Down Conversion between Classical Electromagnetic Fields via a Quantum Mechanical SQUID Ring
• Characterising a solid state qubit via environmental noise