Delayed creation of entanglement in superconducting qubits interacting with a microwave field

Details Delayed creation of entanglement in superconducting qubits interacting with a microwave field Delayed creation of entanglement in superconducting qubits interacting with a microwave field

2009-04-27

arxiv.org/abs/0904.4201v2

Physics

Quantum Physics

9 pages, 5 figures,

Scientific paper

We explore the role played by the intrinsic decoherence in superconducting charge qubits in the presence of a microwave field applied as a magnetic flux. We study how the delayed creation of entanglement, which is opposite to the sudden death of entanglement, can be induced. We compute the time evolution of the population inversion, total correlation and entanglement, taking into account the junction mixed state and dissipation of the cavity field. We show that although decoherence destroys the correlation of the junction and field, information of the initial state may be obtained via quasi-probability distribution functions.

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