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

  1. Daria V. Popolitova,
  2. Nikolay V. Klenov ORCID Logo,
  3. Igor I. Soloviev,
  4. Sergey V. Bakurskiy and
  5. Olga V. Tikhonova

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

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

Published 11 Apr 2019

  • Preprint


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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