6 papers
Symmetry-protected many-body Ramsey spectroscopy: precision scaling and robustness
Sijie Chen, Jiahao Huang, Min Zhuang +1
Quantum entanglement is a powerful quantum resource for enhancing measurement precision beyond classical limit. % Here we propose an entanglement-enhanced symmetry-protected destru…
Ramsey Spectroscopy via Symmetry-Protected Destructive Many-Body Interferometry
Sijie Chen, Jiahao Huang, Min Zhuang +1
Ramsey spectroscopy, a fundamental tool in both basic science and practical applications, is inevitably subject to several detrimental effects. % Here we propose a symmetry-protect…
Bayesian Phase Estimation via Active Learning
Yuxiang Qiu, Min Zhuang, Jiahao Huang +1
Bayesian estimation approaches, which are capable of combining the information of experimental data from different likelihood functions to achieve high precisions, have been widely…
Simultaneous measurement of DC and AC magnetic fields at the Heisenberg limit
Min Zhuang, Jiahao Huang, Chaohong Lee
High-precision magnetic field measurement is an ubiquitous issue in physics and a critical task in metrology. Generally, magnetic field has DC and AC components and it is hard to e…
Multiparameter estimation via an ensemble of spinor atoms
Min Zhuang, Jiahao Huang, Chaohong Lee
Multiparameter estimation, which aims to simultaneously determine multiple parameters in the same measurement procedure, attracts extensive interests in measurement science and tec…
Achieving Heisenberg-limited metrology with spin cat states via interaction-based readout
Jiahao Huang, Min Zhuang, Bo Lu +2
Spin cat states are promising candidates for quantum-enhanced measurement. Here, we analytically show that the ultimate measurement precision of spin cat states approaches the Heis…