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Unbiased random circuit compiler for time-dependent Hamiltonian simulation
Xiao-Ming Zhang, Zixuan Huo, Kecheng Liu +2
Time-dependent Hamiltonian simulation (TDHS) is a critical task in quantum computing. Existing algorithms are generally biased with a small algorithmic error , and the…
Quantum algorithms for optimal effective theory of many-body systems
Yongdan Yang, Zongkang Zhang, Xiaosi Xu +2
A common situation in quantum many-body physics is that the underlying theories are known but too complicated to solve efficiently. In such cases one usually builds simpler effecti…
Quantum Error Mitigation
Zhenyu Cai, Ryan Babbush, Simon C. Benjamin +5
For quantum computers to successfully solve real-world problems, it is necessary to tackle the challenge of noise: the errors which occur in elementary physical components due to u…
Quantum-assisted Monte Carlo algorithms for fermions
Xiaosi Xu, Ying Li
Quantum computing is a promising way to systematically solve the longstanding computational problem, the ground state of a many-body fermion system. Many efforts have been made to…
Quantum algorithms for Schrieffer-Wolff transformation
Zongkang Zhang, Yongdan Yang, Xiaosi Xu +1
The Schrieffer-Wolff transformation aims to solve degenerate perturbation problems and give an effective Hamiltonian that describes the low-energy dynamics of the exact Hamiltonian…