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International Journal of Theoretical Physics

Dynamics of Information Coded in a Single Cooper Pair Box

A-H. M. Ahmed, Lee Yen Cheong, Nordin Zakaria, NASSER METWALLY

Published Nov 1, 2012• 22 citations
Publisher
DOI
10.1007/s10773-012-1399-9

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The dynamics of the skew information (SI) is investigated for a single Cooper Pair Box (CPB) interacting with a single cavity field. By suitably choosing the system parameters and precisely controlling the dynamics, novel connection is found between the SI and entanglement generation. It is shown that SI can be increased and reach its maximum value either by increasing the number of photons inside the cavity or considering the far off-resonant case. The number of oscillations of SI is increased by decreasing this ratio between the Josephson junction capacity and the gate capacity. This leads to significant improvement of the travelling time between the maximum and minimum values.