Open AccessPropagation of short current pulses in Josephson transition line and ultrafast qubit control
Author(s) -
M. V. Bastrakova,
N. V. Klenov,
V. I. Ruzhickiy,
A. M. Satanin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1410/1/012142
Subject(s) - fluxon , flux qubit , josephson effect , physics , qubit , phase qubit , superconductivity , charge qubit , superconducting quantum computing , magnetic flux , line (geometry) , ultrashort pulse , electric power transmission , condensed matter physics , transmission line , pi josephson junction , quantum , magnetic field , quantum mechanics , chemistry , telecommunications , computer science , laser , geometry , mathematics
The results of the study of the impact of single-quantum magnetic flux pulses moving along the Josephson transmission lines (JTL) on the dynamics of states of qubits magnetically coupled with such lines are presented. The JTL dynamics was calculated in the frame of resistively shunted junction model with different damping coefficients. This allowed us to find the form of control current pulses (fluxon) acting on a superconducting qubit. Numerical simulations of the simplest logic operations with superconducting qubit due to calculated fluxon impact are presented.