Robust pulses for high fidelity non-adiabatic geometric gate operations in an off-resonant three-level system |
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| Authors: | Ying Yan Jie Lu Lin Wan Joel Moser |
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| Institution: | 1. School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China;2. Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, 215006 Suzhou, China;3. Department of Physics, Shanghai University, 200444 Shanghai, China;4. Shanghai Key Lab for Astrophysics, 100 Guilin Road, 200234 Shanghai, China |
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| Abstract: | We propose a method to design pulses in a resonant three-level system to enhance the robustness of non-adiabatic geometric gate operations. By optimizing the shape of the pulse envelope, we show that the gate operations are more robust against frequency detuning than they are with Gaussian and square pulses. Our method provides a way to design pulses that can be employed in a system where robustness against frequency variations or inhomogeneous broadening is required, and may be extended to ensure robustness against other physical imperfections such as intensity fluctuations and random noises. |
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| Keywords: | Geometric gates Pulse envelope Robustness against frequency variation or detuning |
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