在基于2D环共振器的合器架构中展示了两个量子比特纠门
Anirban Bhattacharjee1, Panya Jain2, Jay Deshmukh2
1Department of Condensed Matter Physics and Material Sciences, Tata Institute of Fundamental Research, Mumbai, 400005, India. anirbanqm@gmail.com.
Scientific reports
|February 5, 2025
概括
研究人员使用一种新的环共振器架构演示了纠的两量子比特实验. 这种架构能够实现多路径合,以增强量子位交互,并为可扩展的量子网络铺平道路.
科学领域:
- 量子计算是一种量子计算.
- 量子信息科学 量子信息科学
- 固态物理 固态物理
背景情况:
- 开发可扩展的量子计算架构对于推进量子信息处理至关重要.
- 需要新的架构来克服量子位连接和交互控制的局限性.
- 环共振器为调解多量子位相互作用提供了一个有前途的平台.
研究的目的:
- 实施和演示使用一种新的2D平面环共振器架构的两量子比特纠.
- 为了研究环共振器作为固定频率超声量子比特的多路径合器的能力.
- 在这个架构中评估控制相位 (CPHASE) 门和贝尔状态生成的性能.
主要方法:
- 制造一个2D平面装置,将三个固定频率的超声量子比特与一个环共振器集成在一起.
- 使用微波光谱学对对量子位-共振器合强度的表征.
- 实施全微波控制相位 (CPHASE) 门协议.
- 通过贝尔状态准备和忠实度测量验证两个量子比特纠.
主要成果:
- 在三个跨子量子比特之间成功进行对联,并测量了符合模拟的合强度.
- 一个控制相位 (CPHASE) 门的演示,门时间为196 ns.
- 生成一个两个量子比特的贝尔状态,其测量状态忠实度为[公式:参见文本].
- 环共振器有效地调解了超越最近邻居的相互作用.
结论:
- 新型环共振器架构成功实现了两量子比特纠.
- 这种架构提供了一个可扩展的平台,用于创建高度连接的多量子比特网络.
- 展示的CPHASE门和钟态生成突出显示了强大的量子运算的潜力.
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