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arXiv · 2101.05492

Dynamical-decoupling-protected nonadiabatic holonomic quantum computation

P. Z. Zhao·X. Wu·D. M. Tong
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Abstract

The main obstacles to the realization of high-fidelity quantum gates are the control errors arising from inaccurate manipulation of a quantum system and the decoherence caused by the interaction between the quantum system and its environment. Nonadiabatic holonomic quantum computation allows for high-speed implementation of whole-geometric quantum gates, making quantum computation robust against control errors. Dynamical decoupling provides an effective method to protect quantum gates against environment-induced decoherence, regardless of collective decoherence or independent decoherence. In this paper, we put forward a protocol of nonadiabatic holonomic quantum computation protected by dynamical decoupling . Due to the combination of nonadiabatic holonomic quantum computation and dynamical decoupling, our protocol not only possesses the intrinsic robustness against control errors but also protects quantum gates against environment-induced decoherence.

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P. Z. Zhao, X. Wu, D. M. Tong. 2021-01-14. Dynamical-decoupling-protected nonadiabatic holonomic quantum computation. https://doi.org/10.1103/physreva.103.012205

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