在圆捕获的极子子凝聚物中运行量子门
Luciano S Ricco1, Ivan A Shelykh2,3,4, Alexey Kavokin5,6,7
1Science Institute, University of Iceland, Dunhagi-3, IS-107, Reykjavik, Iceland. lsricco@hi.is.
Scientific reports
|February 21, 2024
概括
研究人员开发了用于圆陷中的激子-极子凝聚物的光学量子门. 这项工作使得用极子量子比特进行量子计算成为可能,为新的量子算法铺平了道路.
科学领域:
- 量子物理学的量子物理学
- 凝聚物质物理学 凝聚物质物理学
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 刺激子-极子子是由刺激子和光子组成的准粒子.
- 量子计算需要强大的量子比特和量子门.
研究的目的:
- 提出和分析基于激发子-极子凝聚物的光学调节量子比特系统.
- 设计用于量子信息处理的通用单量子和双量子比特门.
- 调查脱凝机制对量子比特忠实性的影响.
主要方法:
- 使用被限制在圆陷中的激子-极子的玻色子凝聚物.
- 在布洛赫球体上表示量子位状态,使用p型状态的叠加.
- 采用辅助激光束用于单量子比特网关操作.
- 调查用于两量子比特门实施 (CPHASE, CNOT) 的陷间相互作用.
- 分析诸如纯脱相和自发放松等错误源.
主要成果:
- 展示了一种从激发子-极子凝聚物中创建可光调节的量子比特的方法.
- 开发了通用单量子比特门和双量子比特门 (CPHASE, CNOT).
- 量化了由于非连贯性而导致的忠实度降低和度增加.
- 根据DiVincenzo的量子计算标准对该提案进行了评估.
结论:
- 拟议的系统为使用极子子量子比特处理量子信息提供了一个有前途的平台.
- 光学控制的量子门可以在带有圆陷的平面微腔中实现.
- 这项研究为在基于极子子的量子计算机上实现量子算法奠定了基础.
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