International Journal of Theoretical Physics

, Volume 52, Issue 6, pp 1979–1988 | Cite as

Dynamics of Information Coded in a Single Cooper Pair Box

  • A-H. M. Ahmed
  • Lee Yen Cheong
  • Nordin Zakaria
  • Nasser Metwally


In this paper, we investigate the dynamics of coded information in a single Cooper pair interacting with a single Cavity mode. The effect of the relative ratio of Josephson junction capacity and the gate capacities on the purity, coherent vectors and the entropy of the travelling Cooper pair are investigated. The exchange information between the environment and the Cooper pair is quantified for different values of the Cooper qubit and environment parameters.


Information entropy Qubits Quantum coding 


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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • A-H. M. Ahmed
    • 1
    • 4
  • Lee Yen Cheong
    • 2
  • Nordin Zakaria
    • 1
  • Nasser Metwally
    • 3
  1. 1.HPC Service CenterUniversiti Teknologi PETRONASTronohMalaysia
  2. 2.FAS DepartmentUniversiti Teknologi PETRONASTronohMalaysia
  3. 3.Mathematics Department, College of ScienceBahrain UniversityBahrainKingdom of Bahrain
  4. 4.Physics Department, Faculty of ScienceAl-Azhar UniversityAssiutEgypt

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