2 results match your criteria: "Lomonosov Moscow State University Physics Department[Affiliation]"
Unipolar magnetic field pulses as an advantageous tool for ultrafast operations in superconducting Josephson "atoms".
Beilstein J Nanotechnol
July 2019
Lomonosov Moscow State University Physics Department, Moscow, 119991, Russia.
Article Synopsis
- A theoretical framework is proposed to understand how ultrafast population transfer and magnetization reversal in superconducting meta-atoms occur when exposed to short magnetic field pulses.
- A method using stimulated Raman Λ-type transitions is suggested to enable rapid quantum operations on the picosecond timeframe.
- An experimental setup for implementing this ultrafast control within a circuit-on-chip is also introduced.
Magnetic reversal dynamics of a quantum system on a picosecond timescale.
Beilstein J Nanotechnol
December 2015
Lomonosov Moscow State University Physics Department, Moscow 119991, Russia ; Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics, Moscow 119991, Russia.
We present our approach for a consistent, fully quantum mechanical description of the magnetization reversal process in natural and artificial atomic systems by means of short magnetic pulses. In terms of the simplest model of a two-level system with a magnetic moment, we analyze the possibility of a fast magnetization reversal on the picosecond timescale induced by oscillating or short unipolar magnetic pulses. We demonstrate the possibility of selective magnetization reversal of a superconducting flux qubit using a single flux quantum-based pulse and suggest a promising, rapid Λ-scheme for resonant implementation of this process.
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