Nonperturbative quantum dynamical decoupling

Jun Jing, Lian-Ao Wu, J. Q. You, and Ting Yu

Phys. Rev. A 88, 022333 – Published 27 August 2013

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 nonperturbative dynamical control approach based on the exact stochastic Schrödinger 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 nonperturbative feature of our approach. The nonperturbative methods offer possible new implementations when several different parameter regions are available.

Received 22 February 2012

DOI:https://doi.org/10.1103/PhysRevA.88.022333

Authors & Affiliations

Jun Jing^1,4,*, Lian-Ao Wu^2,†, J. Q. You^3,‡, and Ting Yu^1,§

¹Center for Controlled Quantum Systems and Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
²Ikerbasque, Basque Foundation for Science, 48011 Bilbao and Department of Theoretical Physics and History of Science, The Basque Country University (EHU/UPV), P.O. Box 644, 48080 Bilbao, Spain
³Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
⁴Department of Physics, Shanghai University, Shanghai 200444, China

^*Email address: Jun.Jing@stevens.edu
^†Email address: lianao_wu@ehu.es
^‡Email address: jqyou@fudan.edu.cn
^§Email address: Ting.Yu@stevens.edu

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Vol. 88, Iss. 2 — August 2013

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