Optimal control for maximally creating and maintaining a superposition state of a two-level system under the influence of Markovian decoherence

Yukiyoshi Ohtsuki, Suicho Mikami, Toru Ajiki +1

Reducing decoherence is an essential step toward realizing general-purpose quantum computers beyond the present noisy intermediate-scale quantum (NISQ) computers. To this end, dyna…