Non-Perturbative Quantum Dynamical Decoupling
Jun Jing, Lian-Ao Wu, J. Q. You, Ting Yu
TL;DR
This paper introduces a non-perturbative quantum dynamical decoupling method using the exact stochastic Schrödinger equation, revealing new control regimes beyond traditional perturbative approaches.
Contribution
It develops a non-perturbative dynamical control framework based on the exact stochastic Schrödinger equation, expanding the possibilities for quantum control strategies.
Findings
Identification of pulse parameter regions for effective control
Discovery of non-perturbative control zones
Potential for new implementations in quantum control
Abstract
Current dynamical control based on the bang-bang control mechanism involving various types of pulse sequences is essentially a perturbative theory. This paper presents a non-perturbative dynamical control approach based on the exact stochastic Schr\"odinger equation. We report our findings on the pulse parameter regions in which the effective dynamical control can be exercised. The onset of the effective control zones reflects the non-perturbative feature of our approach. The non-perturbative methods offer possible new implementations when several different parameter regions are available.
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