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arXiv · 2302.03276

Rabi-error and Blockade-error-resilient All-Geometric Rydberg Quantum Gates

S. -L. Su·Li-Na Sun·B. -J. Liu·L-L. Yan·M. -H. Yung·Weibin Li·M. Feng
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Abstract

We propose a nontrivial two-qubit gate scheme in which Rydberg atoms are subject to designed pulses resulting from geometric evolution processes. By utilizing a hybrid robust non-adiabatic and adiabatic geometric operations on the control atom and target atom, respectively, we improve the robustness of two-qubit Rydberg gate against Rabi control errors as well as blockade errors in comparison with the conventional two-qubit blockade gate. Numerical results with the current state-of-the-art experimental parameters corroborates the above mentioned robustness. We also evaluated the influence induced by the motion-induced dephasing and the dipole-dipole interaction and imperfection excitation induced leakage errors, which both could decrease the gate fidelity. Our scheme provides a promising route towards systematic control error (Rabi error) as well as blockade error tolerant geometric quantum computation on neutral atom system.

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S. -L. Su, Li-Na Sun, B. -J. Liu, L-L. Yan, M. -H. Yung, Weibin Li, M. Feng. 2023-02-07. Rabi-error and Blockade-error-resilient All-Geometric Rydberg Quantum Gates. https://doi.org/10.1103/physrevapplied.19.044007

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