Fighting Decoherence with Dynamical Decoupling

Abstract

Mitigating errors due to decoherence and imperfect quantum control is fundamental to enable the development of new quantum technologies. We explore in this master's thesis a technique called dynamical decoupling which aims at mitigating decoherence in qubit systems using a periodic control field. We provide a state of the art on dynamical decoupling and investigate the utilization of the Hierarchy of Pure States method for simulating the dynamics of a qubit undergoing a dynamical decoupling procedure and interacting with its environment.