Entanglement Entropy And Quantum Field Theory, Quantum Phase Transitions, Quantum Aspects Of Black Hole Entropy, Rényi Generalizations Of Quantum Information Measures, Black Hole Quantum Entropy, Holographic Principle And Dark Energy, Deformed Density...

K.N.P. Kumar


Vaibhav Madhok, Vibhu Gupta, Denis-Alexandre Trottier, and Shohini Ghose identify signatures of chaos in the dynamics of (e) discord in a multiqubit system collectively modelled as (eb) a quantum kicked top. Evolution of discord between any two qubits is (eb) quasiperiodic in regular regions, while (e) in chaotic regions the quasiperiodicity is (eb) lost. As the initial wave function is varied from (e) the regular regions to the chaotic sea, a contour plot of (e) the time-averaged discord remarkably reproduces (eb) the structures of the classical stroboscopic map. Vaibhav Madhok, Vibhu Gupta, Denis-Alexandre Trottier, and Shohini Ghose also find surprisingly opposite behavior of (e) two-qubit discord versus entanglement of (e) the two qubits as measured by (e&eb) the concurrence. Results provide (eb) evidence of signatures of chaos in (eb)....


The full paper: http://www.iiste.org/PDFshare/APTA-PAGENO-470888-475368.pdf

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