Physical review letters
Quantum-Enhanced Parameter Estimation in Multilevel Systems: Experimental Verification in a Superconducting Qutrit Sensor.
Sai Li, Yuan-Ke Zhu, Wei-Xin Zhang, De-Jian Pan, Wen-Cui Liao, Qing-Xian Lv, Hai-Feng Yu, Yang Yu, Zheng-Yuan Xue, Hui Yan, Shi-Liang Zhu
Published: 202510.1103/g1fd-pfvt
Abstract
As a cornerstone of advanced quantum techniques, parameter estimation is fundamental to precision measurement in physics. Although quantum-enhanced estimation of single parameter has been demonstrated in various two-level systems, measurable paramete…
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