Optimal dynamical decoherence control of a qubit.
We present a theory of dynamical control by modulation for optimal decoherence reduction. The theory is based on the non-Markovian Euler-Lagrange equation for the energy-constrained field that minimizes the average dephasing rate of a qubit for any given dephasing spectrum.
Gordon
Goren
G
Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
Kurizki
Gershon
G
Lidar
Daniel A
DA