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quant-ph2024
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…
quant-ph2024
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…