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阿里達摩院量子實驗室研製兩比特量子晶片 單比特操控精度99.97%
內媒報道,阿里巴巴達摩院量子實驗室於美國物理學會年會上披露,其採用新型量子比特fluxonium的兩比特門操控精度已達到99.72%,基於fluxonium,達摩院量子實驗室成功設計並製造出兩比特量子晶片,實現單比特操控精度99.97%,兩比特iSWAP門操控精度最高達99.72%。 此外,達摩院量子實驗室發明一種利用鈦氮化鋁材料的外延體系製造量子器件的新方法,在極低的微波損耗下依然能實現動態電感的急劇增加。該材料有望成為量子實驗室下一代fluxonium晶片的核心部件。 而在另一個晶片製備的課題上,達摩院量子實驗室製備的基於氮化鈦的超導量子比特,在相干時長這一最關鍵的性能指標上,可重複地達到300微秒,具備世界一流水平。
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