97 citations · 519 across the 23 of their papers we have counts for
12 papers · 1 filter
Entanglement structure of the dynamical phases in the sub-Ohmic spin-boson model
Cunxi Gong, Zirui Sheng, Weitang Li
The sub-Ohmic spin-boson model exhibits three distinct dynamical regimes in its spin population dynamics, classified as coherent, incoherent, and pseudo-coherent. Whether these reg…
Automated Unitary Coupled Cluster Circuit Design via Differentiable Quantum Architecture Search
Jianpeng Chen, Zirui Sheng, Cunxi Gong +1
Designing compact and accurate circuits for the variational quantum eigensolver (VQE) is a central challenge in near-term quantum chemistry. Existing adaptive methods such as ADAPT…
TensorCircuit-NG: A Universal, Composable, and Scalable Platform for Quantum Computing and Quantum Simulation
Shi-Xin Zhang, Yu-Qin Chen, Weitang Li +22
We present TensorCircuit-NG, a next-generation quantum software platform designed to bridge the gap between quantum physics, artificial intelligence, and high-performance computing…
Autonomous Quantum Simulation through Large Language Model Agents
Weitang Li, Jiajun Ren, Lixue Cheng +1
We demonstrate that large language model (LLM) agents can autonomously perform tensor network simulations of quantum many-body systems, achieving approximately 90% success rate acr…
Quantum-Classical Hybrid Computation of Electron Transfer in a Cryptochrome Protein via VQE-PDFT and Multiscale Modeling
Yibo Chen, Zirui Sheng, Weitang Li +4
Accurate calculation of strongly correlated electronic systems requires proper treatment of both static and dynamic correlations, which remains challenging for conventional methods…
Quantum Machine Learning of Molecular Energies with Hybrid Quantum-Neural Wavefunction
Weitang Li, Shi-Xin Zhang, Zirui Sheng +3
Quantum computational chemistry holds great promise for simulating molecular systems more efficiently than classical methods by leveraging quantum bits to represent molecular wavef…
Optimal Tree Tensor Network Operators for Tensor Network Simulations: Applications to Open Quantum Systems
Weitang Li, Jiajun Ren, Hengrui Yang +2
Tree tensor network states (TTNS) decompose the system wavefunction to the product of low-rank tensors based on the tree topology, serving as the foundation of the multi-layer mult…
Towards chemical accuracy with shallow quantum circuits: A Clifford-based Hamiltonian engineering approach
Jiace Sun, Lixue Cheng, Weitang Li
Achieving chemical accuracy with shallow quantum circuits is a significant challenge in quantum computational chemistry, particularly for near-term quantum devices. In this work, w…
TenCirChem: An Efficient Quantum Computational Chemistry Package for the NISQ Era
Weitang Li, Jonathan Allcock, Lixue Cheng +5
TenCirChem is an open-source Python library for simulating variational quantum algorithms for quantum computational chemistry. TenCirChem shows high performance on the simulation o…
Efficient Quantum Simulation of Electron-Phonon Systems by Variational Basis State Encoder
Weitang Li, Jiajun Ren, Sainan Huai +3
Digital quantum simulation of electron-phonon systems requires truncating infinite phonon levels into basis states and then encoding them with qubit computational basis. Unary…
Hybrid Quantum-Classical Boson Sampling Algorithm for Molecular Vibrationally Resolved Electronic Spectroscopy with Duschinsky Rotation and Anharmonicity
Yuanheng Wang, Jiajun Ren, Weitang Li +1
Using a photonic quantum computer for boson sampling has been demonstrated a tremendous advantage over classical supercomputers. It is highly desirable to develop boson sampling al…
Toward Practical Quantum Embedding Simulation of Realistic Chemical Systems on Near-term Quantum Computers
Weitang Li, Zigeng Huang, Changsu Cao +6
Quantum computing has recently exhibited great potentials in predicting chemical properties for various applications in drug discovery, material design, and catalyst optimization.…