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

• URL: http://arxiv.org/abs/2302.03276v1
• Date: Tue, 7 Feb 2023 06:01:59 GMT
• Title: Rabi-error and Blockade-error-resilient All-Geometric Rydberg Quantum Gates
• Authors: S.-L. Su, Li-Na Sun, B.-J. Liu, L-L. Yan, M.-H. Yung, Weibin Li and M. Feng
• Abstract summary: We improve the robustness of two-qubit Rydberg gate against Rabi control errors and blockade errors. 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.
• Score: 1.6163129903911513
• License: http://creativecommons.org/licenses/by/4.0/
• 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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