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公开(公告)号:US12027610B2
公开(公告)日:2024-07-02
申请号:US17474175
申请日:2021-09-14
申请人: IMEC VZW
发明人: George Eduard Simion , Fahd Ayyalil Mohiyaddin , Stefan Kubicek , Bogdan Govoreanu , Florin Ciubotaru , Ruoyu Li
CPC分类号: H01L29/66977 , G06N10/00 , H10N50/80 , B82Y10/00
摘要: According to an aspect of the present inventive concept there is provided a qubit device comprising: a semiconductor substrate layer; a set of control gates configured to define a row of electrostatically confined quantum dots along the substrate layer, each quantum dot being suitable for holding a qubit; and a set of nanomagnets arranged in a row over the substrate layer such that a nanomagnet is arranged above every other quantum dot of the row of quantum dots, wherein each nanomagnet has an out-of-plane magnetization with respect to the substrate layer and wherein every other quantum dot is subjected to an out-of-plane magnetic field generated by a respective nanomagnet, such that a qubit spin resonance frequency of every other quantum dot is shifted with respect to an adjacent quantum dot of the row of quantum dots.
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公开(公告)号:US20230196166A1
公开(公告)日:2023-06-22
申请号:US18060154
申请日:2022-11-30
申请人: IMEC VZW
发明人: Fahd Ayyalil Mohiyaddin , Stefan Kubicek , Clement Godfrin , Bogdan Govoreanu , Steven Brebels , Ruoyu Li , George Eduard Simion
摘要: A qubit device includes first and second linear qubit arrays. Each qubit array includes a semiconductor substrate, control gates configured to define a single row of quantum dots along the substrate, and nanomagnets distributed along the row of quantum dots such that a nanomagnet is arranged at every other pair of quantum dots of the row of quantum dots. Each nanomagnet has an out-of-plane magnetization with respect to the substrate, where the rows of the first and second arrays extend in a common row direction and are separated along a direction transverse to the row direction. The qubit device further includes superconducting resonators connecting pairs of quantum dots between the first and second arrays. Each pair of quantum dots in the first array is configured to couple with a superconducting resonator of the first set to connect with a different pair of quantum dots of the second array.
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