4 papers
Practical Homodyne Shadow Estimation
Ruyu Yang, Xiaoming Sun, Hongyi Zhou
Shadow estimation provides an efficient framework for estimating observable expectation values using randomized measurements. While originally developed for discrete-variable syste…
Expressibility of linear combination of ansatz circuits
Peng Wang, Ruyu Yang
Variational Quantum Eigensolver is considered promising for medium-scale noisy quantum computers. Expressibility is an important metric for measuring the capability of a variationa…
Error mitigated shadow estimation based on virtual distillation
Ruyu Yang, Xiaoming Sun, Hongyi Zhou
Shadow estimation is a method for deducing numerous properties of an unknown quantum state through a limited set of measurements, which suffers from noises in quantum devices. In t…
General noise-resilient quantum amplitude estimation
Yonglong Ding, Ruyu Yang
Quantum advantage requires overcoming noise-induced degradation of quantum systems. Conventional methods for reducing noise such as error mitigation face scalability issues in deep…