在监控的克利福德电路中揭示了一个隐藏的透过渡:从ZX Calculus的入侵
Einat Buznach Ahituv1, Jonathan Ruhman1, Debanjan Chowdhury2
1Bar-Ilan University, Department of Physics, 52900 Ramat Gan, Israel.
Physical review letters
|August 18, 2025
概括
克利福德电路中的测量诱导的相变被揭示为一种伪装的经典透过渡. 这一发现挑战了以前的假设,因为它显示了电路结构中隐藏的透现象.
科学领域:
- 量子信息科学 量子信息科学
- 复杂的系统复杂的系统.
背景情况:
- 量子电路中的测量诱导相变 (MPT) 是一个关键的研究领域.
- 克利福德电路是典型的模拟,但表现出关键的行为.
- 当前的理解表明,克利福德电路中的MPT与经典的透不同.
研究的目的:
- 在克利福德电路中重新检查MPT的性质.
- 研究MPT与经典透理论之间的关系.
- 为了利用ZX微积分进行电路分析.
主要方法:
- 对一个动态模型的分析,其中有控制不 (CNOT) 门,SWAP门,身份门和Bell-pair测量在一个结构模式中.
- 应用基于ZX计算的简化技术.
- 通过相互信息来观察MPT.
主要成果:
- 标准分析表明MPT与经典透有所区别.
- 简化ZX-calculus揭示了一个隐藏的经典透过渡.
- 识别的透过渡与通过相互信息观察到的MPT相吻合.
结论:
- 克利福德电路中的测量诱导的相位过渡由底层的经典透过渡控制.
- ZX微积分为揭示量子电路中隐藏的结构提供了一个强大的工具.
- 这一发现使我们重新理解了经典模拟量子系统中关键现象的理解.
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