4 papers · 1 filter
Constant-depth global shadow estimation
Qingyue Zhang, Zhou You, Dayue Qin +3
Reliable and scalable readout strategies are essential for quantum technologies. As quantum processors grow, extracting useful information must remain feasible without measurement…
Ultra-Precise Quantum Projective Designs in Constant Depth
Qingyue Zhang, Junjie Chen, Zhou You +1
Random quantum objects are powerful resources for quantum information processing, yet exact Haar randomness is costly and typically unnecessary. We introduce an explicit sparse com…
Phase shadow: A noise-tolerant path to global quantum property estimation
Qingyue Zhang, Dayue Qin, Zhou You +3
Measuring global quantum properties-such as the fidelity to complex multipartite states-is both an essential and experimentally challenging task. Classical shadow estimation offers…
Minimal Clifford Shadow Estimation by Mutually Unbiased Bases
Qingyue Zhang, Qing Liu, You Zhou
Predicting properties of large-scale quantum systems is crucial for the development of quantum science and technology. Shadow estimation is an efficient method for this task based…