4 papers
Complementing Quantum Error Correction in Quantum Metrology via Swap Test
Xiaodie Lin, Linxuan Li, Haidong Yuan
The precision and sensitivity achievable in quantum metrology are often compromised by the presence of noise. While quantum error correction has emerged as a promising strategy, it…
Minimal Trade-off and Optimal Measurement for Multiparameter Quantum Estimation
Lingna Wang, Hongzhen Chen, Haidong Yuan
A fundamental challenge in multiparameter quantum estimation arises from the incompatibility of optimal measurements for different parameters, leading to intricate precision trade-…
Nonreciprocity enhanced Quantum Gyroscopes based on Surface Acoustic Waves
Y. T. Zhu, Shibei Xue, Fangfang Ju +1
Surface acoustic waves (SAWs), as Rayleigh waves generated by elastic media, have been used in gyroscopes for over 40 years due to their unique propagation characteristics. However…
Quantum gyroscopes based on double-mode surface-acoustic-wave cavities
Yuting Zhu, Shibei Xue, Fangfang Ju +1
Recent progress shows that a surface-acoustic-wave (SAW) cavity can not only induce quantum acoustic dynamics but also can form optomechanical-like systems. Its operating frequenci…