Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for fnance,pharmaceutical industry,fundamental chemistry and other felds.Currently,a big chall...Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for fnance,pharmaceutical industry,fundamental chemistry and other felds.Currently,a big challenge for trapped-ion quantum computers is the poor scalability mainly brought by the optical elements that are used for optical addressing.Metasurfaces provide a promising solution due to their excellent fexibility and integration ability.Here,we propose and numerically demonstrate a scalable of-axis metalens array for optical addressing working at the wavelength of 350 nm.Metalens arrays designed for x linearly polarized and left circularly polarized light respectively can focus the collimated addressing beam array into a compact focused spot array with spot spacing of 5μm,featuring crosstalk below 0.82%.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.62075073,62135004,and 62075129)the Fundamental Research Funds for the Central Universities(No.2019kfyXKJC038)+1 种基金State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Jiao Tong University(No.2021GZKF007)Key R&D Project of Hubei Province(No.2021BAA003).
文摘Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for fnance,pharmaceutical industry,fundamental chemistry and other felds.Currently,a big challenge for trapped-ion quantum computers is the poor scalability mainly brought by the optical elements that are used for optical addressing.Metasurfaces provide a promising solution due to their excellent fexibility and integration ability.Here,we propose and numerically demonstrate a scalable of-axis metalens array for optical addressing working at the wavelength of 350 nm.Metalens arrays designed for x linearly polarized and left circularly polarized light respectively can focus the collimated addressing beam array into a compact focused spot array with spot spacing of 5μm,featuring crosstalk below 0.82%.
