统一的花束理论的纵向和分散的读数
A Chessari1, E A Rodríguez-Mena1, J C Abadillo-Uriel1,2
1CEA, Université Grenoble Alpes, IRIG-MEM-L_Sim, 38000 Grenoble, France.
Physical review letters
|February 10, 2025
概括
我们开发了Floquet理论用于电路量子电动力学 (cQED) 读数,将量子位ac Stark转移连接到纵向和分散光子合. 这将adiabatic和diabatic极限统一,以实现更快的量子信息处理.
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.
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 电路量子电动学 (cQED) 是量子计算的领先平台.
- 准确的量子比特读数对于量子信息处理至关重要.
- 了解量子比特-光子相互作用是改善cQED系统的关键.
研究的目的:
- 在cQED中开发一个统一的Floquet理论,用于纵向和分散的读数.
- 为了在量子位电流的斯塔克转移和光子合强度之间建立通用连接.
- 为了实现更快,更灵活的量子信息读出.
主要方法:
- 设计了一个关于量子比特与空腔光子相结合的Floquet理论.
- 在共振驱动下分析了量子位AC Stark转移.
- 获得分析结果并通过数值模拟进行验证.
- 将理论应用于超导和旋转混合cQED系统.
主要成果:
- 建立了ac Stark转移属性 (斜率和曲率) 和合强度 (g和 χ) 之间的通用连接.
- 证明了纵向合 (g) 是由斯塔克转移的斜率决定的,而分散转移 (χ) 则取决于它的曲率.
- 在弱驱动极限中展示了g和χ之间的比例性.
- 量子比特-光子相互作用的统一的adiabatic和diabatic模式.
- 突出了比分散速度更快的纵向读数的潜力.
结论:
- 开发的Floquet理论为了解和控制cQED中的量子位读数提供了一个全面的框架.
- 这种方法为通过更快,更通用的读取机制提供了增强量子信息处理的途径.
- 该理论对各种cQED系统的适用性强调了它在量子技术中的广泛意义.
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