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Generating non-classical correlations between two superconductor qubits confined in atransmission cavity in dispersive limit under intrinsic noise

Research Authors
A.-S.F. Obada
A.-B.A. Mohamed
M. Hashem
M.M. Elkhateeb
Research Abstract

An analytical solution of the dynamical evolution of two qubits confined in a transmission line cavity is obtained in dispersive limit under intrinsic noise. The dynamics of non-classical correlations are investigated by using different measures based on the skew information quantifiers [including local quantum uncertainty and uncertainty-induced non-locality], the Bell function and logarithmic negativity for experimentally chosen parameters. It is found that the generation of the non-classical correlations and its robustness depend crucially on the transverse exchange interaction, the dissipation rate, the mean photon number, and the frequency shift. The phenomena of sudden disappearance and sudden appearance of entanglement are observed. The stationary correlations appear due to the intrinsic decoherence, which depends on the parameters of the chosen initial states.

Research Department
Research Journal
PhysicaE:Low-dimensional Systems and Nanostructures
Research Member
Research Publisher
ELSEVIER
Research Rank
1
Research Vol
117
Research Website
www.elsevier.com/locate/physe
Research Year
2020
Research Pages
113854