Vortices In Josephson arrays interacting with nonclassical microwaves in a dissipative environment

ANASTASIA KONSTANTOPOULOU, J. M. Hollingworth, A. Vourdas, M. Everitt, T. D. Clark, J. F. Ralph

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

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 nonclassical 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.
Original languageEnglish
Title of host publicationQuantum Computing and Quantum Bits in Mesoscopic Systems
Place of PublicationNew York
PublisherSpringer Science + Business Media
Pages69-76
Number of pages7
ISBN (Electronic)978-1-4419-9092-1
ISBN (Print)978-1-4613-4791-0
DOIs
Publication statusPublished - 1 Jan 2004
Externally publishedYes

Keywords

  • Josephson arrays
  • Vortices
  • Entanglement
  • dissipation

Fingerprint Dive into the research topics of 'Vortices In Josephson arrays interacting with nonclassical microwaves in a dissipative environment'. Together they form a unique fingerprint.

  • Cite this

    KONSTANTOPOULOU, ANASTASIA., Hollingworth, J. M., Vourdas, A., Everitt, M., Clark, T. D., & Ralph, J. F. (2004). Vortices In Josephson arrays interacting with nonclassical microwaves in a dissipative environment. In Quantum Computing and Quantum Bits in Mesoscopic Systems (pp. 69-76). Springer Science + Business Media. https://doi.org/10.1007/978-1-4419-9092-1_8