使用100光子的施罗丁格猫状态决定性地编码量子信息
Brian Vlastakis1, Gerhard Kirchmair, Zaki Leghtas
1Department of Physics and Department of Applied Physics, Yale University, New Haven, CT 06511, USA.
Science (New York, N.Y.)
|September 28, 2013
概括
研究人员使用超导量子比特和腔共振器演示了多光子控制,以创建大型量子"猫状态". 这通过同时操纵数百个光子来推进量子计算和计量学.
科学领域:
- 量子计算是一种量子计算.
- 量子光学是一种量子光学.
- 超导电路中的超导电路
背景情况:
- 与振荡器相比,单个量子位 (量子位) 在存储信息方面存在局限性.
- 振荡器可以存储多个刺激和连贯性,使复杂的多光子状态成为可能.
研究的目的:
- 为了证明精确的多光子控制使用超导量子比特合到一个腔共振器.
- 创建和操纵大规模的量子叠加状态,特别是"猫状态".
主要方法:
- 采用了一种超导超声量子比特,具有非常理想的非共振合与波导腔共振器.
- 使用条件量子比特-光子逻辑来操作状态.
- 杆分散相互作用显著超过脱凝率.
主要成果:
- 实现了数百个光子的同时操纵.
- 成功地将任意量子位状态映射到具有多达111个光子的"猫状态".
- 扩展协议以产生多达四个连贯状态的叠加.
结论:
- 展示了离散和连续变量量子计算之间的强大接口.
- 开发的控制器可以创建大型猫状态,从而推进量子信息处理.
- 突出了量子计量学和信息处理方面的潜在应用.
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