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23 January 2023 High-fidelity gate operations with short paths in a Λ system
Jiamin Qiu, Hong Peng, Ying Yan
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Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125572W (2023) https://doi.org/10.1117/12.2651898
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China
Abstract
A theoretical model is proposed to construct high-fidelity arbitrary single qubit gates with geometric phase via a pair of non-adiabatic two-color pulses (TCP) with multiple degrees of freedom interacting with a resonant Λ system. The amplitudes and phases of the TCP are divided into three segments under specific conditions. Compared with the traditional gate operations via single-loop multiple pulses, our model provides a shorter evolution path for small rotation gates, reduces the population in the excited state by 40%, and increases the robustness against the Rabi error. The model is applicable to a single-ion rare-earth-ions (REI) system, where Eu3+ ions doped in an Y2SiO5 crystal is considered. Simulations show that the operational fidelities of NOT gate and Hadamard gate are both above 99.8% with an evolution time of 3 μs.
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Jiamin Qiu, Hong Peng, and Ying Yan "High-fidelity gate operations with short paths in a Λ system", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125572W (23 January 2023); https://doi.org/10.1117/12.2651898
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KEYWORDS
Quantum communications
Europium
Quantum computing
Light-matter interactions
Optics manufacturing
Numerical simulations
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