Vortices in Josephson arrays interacting with non-classical microwaves: The effect of dissipation.

Description

No / Vortices circulating in a ring made from a Josephson array in the insulating phase are studied. The ring contains a `dual Josephson junction' through which the vortices tunnel. External non-classical microwaves are coupled to the device. The time evolution of this two-mode fully quantum mechanical system is studied, taking into account the dissipation in the system. The effect of the quantum statistics of the photons on the quantum statistics of the vortices is discussed. Entropic calculations quantify the entanglement between the two systems. Quantum phenomena in the system are also studied through Wigner functions. After a certain time (which depends on the dissipation parameters) these quantum phenomena are destroyed due to dissipation.

Links & Downloads

1. Konstadopoulou, A., Hollingworth, J.M., Everitt, M. and Vourdas, A. et al. (2003). Vortices in Josephson arrays interacting with non-classical microwaves: The effect of dissipation. The European Physical Journal. B. - Condensed Matter and Complex Systems. Vol. 32, No. 3, pp. 279-285.
2. http://hdl.handle.net/10454/3769
3. https://doi.org/10.1140/epjb/e2003-00098-2

Tags

Tunneling phenomena

SQUIDs

Josephson effects

Vortices

Wigner function

Quantum noise

Quantum statistics theory

Tunnel effect

Quantum theory

Microwave radiation

Additional Fields

Identifer	oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/3769
Date	January 2003
Creators	Konstadopoulou, Anastasia, Hollingworth, J.M., Everitt, M., Vourdas, Apostolos, Clark, T.D., Ralph, J.F.
Source Sets	Bradford Scholars
Language	English
Detected Language	English
Type	Article, No full-text available in the repository