Unipolar magnetic field pulses as an advantageous tool for ultrafast spin-flip in superconducting Josephson “atoms”

Submitting author affiliation:
Moscow State University, Moscow, Russian Federation

Beilstein Arch. 2019, 20193. https://doi.org/10.3762/bxiv.2019.3.v1

Published 11 Apr 2019

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The theoretical approach to the consistent fully quantum description of the ultrafast population transfer and magnetization reversal in superconducting meta-atoms induced by picosecond unipolar pulses of the magnetic field is developed. A promising scheme based on the regime of stimulated Raman Λ-type transitions between qubit spin states via upper-lying levels is suggested in order to provide an ultrafast spin-flip on the picosecond time scale. The experimental realization of the ultrafast control of circuit -on -chip is presented.

Keywords: quantum-state-control; adiabatic superconducting logic; superconducting qubits, ultrafast spin-flip, Josephson “atoms”

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Popolitova, D. V.; Klenov, N. V.; Soloviev, I. I.; Bakurskiy, S. V.; Tikhonova, O. V. Beilstein Arch. 2019, 20193. doi:10.3762/bxiv.2019.3.v1

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