6 papers
Dissipative phase decision without ground-state preparation
Hao-En Li, Yilun Yang, Lin Lin
We propose a dynamical approach to identifying ground-state quantum phases through short-time dissipative cooling. Rather than determining the phase by preparing highly accurate ap…
Dissipative quantum algorithms for excited-state quantum chemistry
Hao-En Li, Lin Lin
Electronic excited states are central to a vast array of physical and chemical phenomena, yet accurate and efficient methods for preparing them on quantum devices remain challengin…
Dissipative ground state preparation in ab initio electronic structure theory
Hao-En Li, Yongtao Zhan, Lin Lin
Dissipative engineering is a powerful tool for quantum state preparation, and has drawn significant attention in quantum algorithms and quantum many-body physics in recent years. I…
Towards robust variational quantum simulation of Lindblad dynamics via stochastic Magnus expansion
Jia-Cheng Huang, Hao-En Li, Yi-Cheng Wang +3
In this paper, we introduce a novel and general framework for the variational quantum simulation of Lindblad equations. Building on the close relationship between the unraveled Lin…
Infinite-dimensional Extension of the Linear Combination of Hamiltonian Simulation: Theorems and Applications
Rundi Lu, Hao-En Li, Zhengwei Liu +1
We generalize the Linear Combination of Hamiltonian Simulation (LCHS) formula [An, Liu, Lin, Phys. Rev. Lett. 2023] to simulate time-evolution operators in infinite-dimensional spa…
Variational Quantum Imaginary Time Evolution for Matrix Product State Ansatz with Tests on Transcorrelated Hamiltonians
Hao-En Li, Xiang Li, Jia-Cheng Huang +5
The matrix product state (MPS) ansatz offers a promising approach for finding the ground state of molecular Hamiltonians and solving quantum chemistry problems. Building on this co…