Enhancing the Robustness of Dynamical Decoupling Sequences with Correlated Random Phases

Symmetry

Jorge Casanova¹  Zhenyu Wang²  MartinB. Plenio³ 

[1] Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain;Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China;Institut für Theoretische Physik und IQST, Albert-Einstein-Allee 11, Universität Ulm, D-89069 Ulm, Germany;

关键词: quantum sensing;    dynamical decoupling;    nitrogen-vacancy center;    pulse sequences;   

DOI  :  10.3390/sym12050730

来源: DOAJ

【 摘 要 】

We show that the addition of correlated phases to the recently developed method of randomized dynamical decoupling pulse sequences can improve its performance in quantum sensing. In particular, by correlating the relative phases of basic pulse units in dynamical decoupling sequences, we are able to improve the suppression of the signal distortion due to $\pi$ pulse imperfections and spurious responses due to finite-width $\pi$ pulses. This enhances the selectivity of quantum sensors such as those based on NV centers in diamond.

【 授权许可】

Unknown