Stabilization of quantum information by combined dynamical decoupling and detected-jump error correction

TL;DR

This paper introduces a combined approach using random decoupling and detected-jump error correction to stabilize quantum information, applicable to quantum memories and algorithms, effectively countering decay and imperfections.

Contribution

It presents a novel combined decoupling and error correction scheme compatible with detected-jump codes for enhanced quantum information stability.

Findings

Effective stabilization against spontaneous decay.

Compatibility with detected-jump error correction codes.

Improved quantum information preservation.

Abstract

Two possible applications of random decoupling are discussed. Whereas so far decoupling methods have been considered merely for quantum memories, here it is demonstrated that random decoupling is also a convenient tool for stabilizing quantum algorithms. Furthermore, a decoupling scheme is presented which involves a random decoupling method compatible with detected-jump error correcting quantum codes. With this combined error correcting strategy it is possible to stabilize quantum information against both spontaneous decay and static imperfections of a qubit-based quantum information processor in an efficient way.