Information Entropy of Two Cooper Pair Boxes Interacting with an Environment

Details Information Entropy of Two Cooper Pair Boxes Interacting with an Environment Information Entropy of Two Cooper Pair Boxes Interacting with an Environment

2011-11-21

arxiv.org/abs/1111.4935v2

Physics

Quantum Physics

12 pages, 2 figures

Scientific paper

Adopting the framework of two-coupled superconducting charges model, we discussed the information entropy of two qubits initially prepared in a mixed state and allowed to interact with their environment. The impact of the different parameters of the system is explicitly investigated. Present calculations show that strong mutual entropy is obtained for a long interaction time when the two qubits are initially in a mixed state with the environment switched off. We have identified a class of two-qubit states that have a rich dynamics when the deviation between the characteristic energies of the quabits becomes minimum. It was found that the total correlation decreases abruptly to zero in a finite time due to the influence of the strong environment.

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