336 citations · 3.1k across the 71 of their papers we have counts for
7 papers · 1 filter
Heisenberg's error-disturbance relations: a joint measurement-based experimental test
Yuan-yuan Zhao, Paweł Kurzyński, Guo-yong Xiang +2
The Heisenberg's error-disturbance relation is a cornerstone of quantum physics. It was recently shown to be not universally valid and two different approaches to reformulate it we…
Recursively Adaptive Quantum State Tomography: Theory and Two-qubit Experiment
Bo Qi, Zhibo Hou, Yuanlong Wang +7
Adaptive techniques have important potential for wide applications in enhancing precision of quantum parameter estimation. We present a recursively adaptive quantum state tomograph…
Achieving quantum precision limit in adaptive qubit state tomography
Zhibo Hou, Huangjun Zhu, Guo-Yong Xiang +2
The precision limit in quantum state tomography is of great interest not only to practical applications but also to foundational studies. However, little is known about this subjec…
Error-compensation measurements on polarization qubits
Zhibo Hou, Huangjun Zhu, Guo-Yong Xiang +2
Systematic errors are inevitable in most measurements performed in real life because of imperfect measurement devices. Reducing systematic errors is crucial to ensuring the accurac…
Realization of mutually unbiased bases for a qubit with only one wave plate: Theory and experiment
Zhibo Hou, Guoyong Xiang, Daoyi Dong +2
We consider the problem of implementing mutually unbiased bases (MUB) for a polarization qubit with only one wave plate, the minimum number of wave plates. We show that one wave pl…
Experimental Detection of Entanglement Polytopes via Local Filters
Yuanyuan Zhao, Markus Grassl, Bei Zeng +4
Entanglement polytopes result in finitely many types of entanglement that can be detected by only measuring single-particle spectra. With high probability, however, the local spect…