论文标题
通过观察者 - Qubit感测和控制对随机的噪声进行优化的缓解措施
Optimized mitigation of random-telegraph-noise dephasing by spectator-qubit sensing and control
论文作者
论文摘要
观众量子台（SQS）是减轻难以访问数据量噪声的工具。经常测量的SQ对噪声更为敏感，并且累积的结果很少用于纠正数据量。对于与随机电报噪声进行驱散的硬件相关示例，我们采用复杂的线性图引入了贝叶斯方法，该方法可导致最佳的适应性测量和控制协议。在SQ敏感性中，对解碳速率的抑制是二次的，确保SQ范式在正确的状态中任意工作良好。
Spectator qubits (SQs) are a tool to mitigate noise in hard-to-access data qubits. The SQ, designed to be much more sensitive to the noise, is measured frequently, and the accumulated results used rarely to correct the data qubits. For the hardware-relevant example of dephasing from random telegraph noise, we introduce a Bayesian method employing complex linear maps which leads to a plausibly optimal adaptive measurement and control protocol. The suppression of the decoherence rate is quadratic in the SQ sensitivity, establishing that the SQ paradigm works arbitrarily well in the right regime.
