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Zhen-Peng Xu

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Preprint Oct 2026

Self-testing ideal quantum measurements

A fundamental prediction of quantum mechanics is that observables can be measured through ideal measurements, that is, measurements that give the same outcome when repeated and do not disturb any observable that is jointly measurable. In terms of quantum instruments, such an ideal measurement is described by projective...

Debashis Saha, Zhen-Peng Xu, Adán Cabello · 0 citations
Preprint Aug 2026

Optimal strategies for shadow tomography with limited resources

Shadow tomography addresses the task of efficiently predicting many expectation values of an unknown quantum state from randomized measurements on comparatively few copies. Existing analyses promise large scaling advantages, but the optimal strategies realizing these guarantees are not always known, and the required me...

Zhen-Peng Xu, Qi Ye, Jie Wang et al. · 1 citation

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