可编程多量子位纠在双轨量子网络中的自主分布
J Agustí1,2,3, X H H Zhang1,2,3, Y Minoguchi4
1Technical University of Munich, TUM School of Natural Sciences, Physics Department, 85748 Garching, Germany.
Physical review letters
|January 5, 2024
概括
我们提出了一个可扩展的方法,使用波导量子电动力学 (QED) 来创建分布式多量子位纠状态. 这种技术可以在没有复杂的脉冲控制的情况下,在量子网络中实现高效的纠分布.
科学领域:
- 量子信息科学 量子信息科学
- 量子计算是一种量子计算.
- 量子通信是一种量子通信.
背景情况:
- 准备和分发多量子比特纠状态对于推进量子网络和量子计算至关重要.
- 现有的方法往往需要精确的控制和多个纠源,限制可扩展性.
研究的目的:
- 提出和分析一个可扩展的,自主方案,用于生成空间分布的多量子比特纠状态.
- 为了使多方纠状态在大型量子网络中有效地分布.
主要方法:
- 使用双轨波导量子电动力学 (QED) 设置.
- 使用来自非退化参数放大器的相关光子来照亮量子位数组.
- 调整局部量子比特-光子分离,以控制多方纠的程度.
主要成果:
- 该方案产生了不同类型的纯纠稳定状态.
- 在数值模拟中,准备时间尺度最多与系统大小线性.
- 随着放大放大器带宽的增加,加快速度的潜力.
结论:
- 这种自主计划为分发准备好使用的多方纠状态提供了一条新的途径.
- 它绕过了精确脉冲控制的需要,并依赖于单个纠源.
- 该方法适用于构建大型量子网络.
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