Learning robust pulses for generating universal quantum gates

Daoyi Dong; Chengzhi Wu; Chunlin Chen; Bo Qi; Ian R Petersen; Franco Nori

doi:10.1038/srep36090

Learning robust pulses for generating universal quantum gates

Sci Rep. 2016 Oct 26:6:36090. doi: 10.1038/srep36090.

Authors

Daoyi Dong¹, Chengzhi Wu², Chunlin Chen², Bo Qi³, Ian R Petersen¹, Franco Nori^{4

5}

Affiliations

¹ School of Engineering and Information Technology, University of New South Wales, Canberra 2600, Australia.
² Department of Control and Systems Engineering, Nanjing University, Nanjing 210093, China.
³ Key Laboratory of Systems and Control, ISS, and National Center for Mathematics and Interdisciplinary Sciences, Academy of Mathematics and Systems Science, CAS, Beijing 100190, China.
⁴ CEMS, RIKEN, Saitama, 351-0198, Japan.
⁵ Physics Department, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA.

Abstract

Constructing a set of universal quantum gates is a fundamental task for quantum computation. The existence of noises, disturbances and fluctuations is unavoidable during the process of implementing quantum gates for most practical quantum systems. This paper employs a sampling-based learning method to find robust control pulses for generating a set of universal quantum gates. Numerical results show that the learned robust control fields are insensitive to disturbances, uncertainties and fluctuations during the process of realizing universal quantum gates.

Publication types

Research Support, Non-U.S. Gov't