4 papers · 1 filter
Programmable Signal Design for Quantum Phase Estimation via Quantum Signal Processing
Zikang Jia, Suying Liu, Yulong Dong
Quantum phase estimation is a central primitive in quantum algorithms and sensing, where performance is governed by the sensitivity of measurement signals to the target parameter.…
Infinite quantum signal processing
Yulong Dong, Lin Lin, Hongkang Ni +1
Quantum signal processing (QSP) represents a real scalar polynomial of degree using a product of unitary matrices of size , parameterized by real numbers cal…
Multi-level quantum signal processing with applications to ground state preparation using fast-forwarded Hamiltonian evolution
Yulong Dong, Lin Lin
The preparation of the ground state of a Hamiltonian with a large spectral radius has applications in many areas such as electronic structure theory and quantum field theory. G…
Robust ground-state energy estimation under depolarizing noise
Zhiyan Ding, Yulong Dong, Yu Tong +1
We present a novel ground-state energy estimation algorithm that is robust under global depolarizing error channels. Building upon the recently developed Quantum Exponential Least…