# Dynamical Decoupling of Open Quantum Systems

**Authors:** Lorenza Viola, Emanuel Knill, Seth Lloyd  
**arXiv:** [quant-ph/9809071](https://arxiv.org/abs/quant-ph/9809071)  
**Date:** 1998-09-24  
**Summary page:** https://www.summarizepaper.com/fr/arxiv-id/quant-ph--9809071v2/

## Abstract

We propose a novel dynamical method for beating decoherence and dissipation in open quantum systems. We demonstrate the possibility of filtering out the effects of unwanted (not necessarily known) system-environment interactions and show that the noise-suppression procedure can be combined with the capability of retaining control over the effective dynamical evolution of the open quantum system. Implications for quantum information processing are discussed.