295 citations · 1.5k across the 51 of their papers we have counts for
52 papers
A real neural network state for quantum chemistry
Yangjun Wu, Xiansong Xu, Dario Poletti +3
The restricted Boltzmann machine (RBM) has been successfully applied to solve the many-electron Schrdinger equation. In this work we propose a single-layer fully c…
Block belief propagation algorithm for two-dimensional tensor networks
Chu Guo, Dario Poletti, Itai Arad
Belief propagation is a well-studied algorithm for approximating local marginals of multivariate probability distribution over complex networks, while tensor network states are pow…
Near-Term Quantum Computing Techniques: Variational Quantum Algorithms, Error Mitigation, Circuit Compilation, Benchmarking and Classical Simulation
He-Liang Huang, Xiao-Yue Xu, Chu Guo +5
Quantum computing is a game-changing technology for global academia, research centers and industries including computational science, mathematics, finance, pharmaceutical, material…
Differentiable matrix product states for simulating variational quantum computational chemistry
Chu Guo, Yi Fan, Zhiqian Xu +1
Quantum Computing is believed to be the ultimate solution for quantum chemistry problems. Before the advent of large-scale, fully fault-tolerant quantum computers, the variational…
Large-Scale Simulation of Quantum Computational Chemistry on a New Sunway Supercomputer
Honghui Shang, Li Shen, Yi Fan +11
Quantum computational chemistry (QCC) is the use of quantum computers to solve problems in computational quantum chemistry. We develop a high performance variational quantum eigens…
Emergence of steady currents due to strong prethermalization
Xiansong Xu, Chu Guo, Dario Poletti
A steady current between baths is a manifestation of the prethermalization phenomenon, a quasi-equilibrium dynamical process with weak conserved quantity breaking. We consider two…
Reconstructing Non-Markovian Open Quantum Evolution From Multi-time Measurements
Chu Guo
For a quantum system undergoing non-Markovian open quantum dynamics, we demonstrate a tomography algorithm based on multi-time measurements of the system, which reconstructs a mini…
Quantifying Non-Markovianity in Open Quantum Dynamics
Chu Guo
Characterization of non-Markovian open quantum dynamics is both of theoretical and practical relevance. In a seminal work [Phys. Rev. Lett. 120, 040405 (2018)], a necessary and suf…
Memory Complexity of Quantum Processes
Chu Guo
Generic open quantum dynamics can be described by two seemingly very distinct approaches: a top down approach by considering an (unknown) environment coupled to the system and affe…
Density Matrix Renormalization Group Algorithm For Mixed Quantum States
Chu Guo
Density Matrix Renormalization Group (DMRG) algorithm has been extremely successful for computing the ground states of one-dimensional quantum many-body systems. For problems conce…
Redefining the Quantum Supremacy Baseline With a New Generation Sunway Supercomputer
Xin Liu, Chu Guo, Yong Liu +11
A major milestone in the era of noisy intermediate scale quantum computers is \textit{quantum supremacy} [Nature \textbf{574}, 505 (2019)] claimed on the Sycamore quantum processor…
Closing the "Quantum Supremacy" Gap: Achieving Real-Time Simulation of a Random Quantum Circuit Using a New Sunway Supercomputer
Yong, Liu, Xin +13
We develop a high-performance tensor-based simulator for random quantum circuits(RQCs) on the new Sunway supercomputer. Our major innovations include: (1) a near-optimal slicing sc…
Typicality of nonequilibrium (quasi-)steady currents
Xiansong Xu, Chu Guo, Dario Poletti
The understanding of the emergence of equilibrium statistical mechanics has progressed significantly thanks to developments from typicality, canonical and dynamical, and from the e…
Transport and spectral properties of the XXXXZ diode and stability to dephasing
Kang Hao Lee, Vinitha Balachandran, Chu Guo +1
We study the transport and spectral property of a segmented diode formed by an XX XXZ spin chain. This system has been shown to become an ideal rectifier for spin current for l…
Variational quantum process tomography
Shichuan Xue, Yong Liu, Yang Wang +3
Quantum process tomography is an experimental technique to fully characterize an unknown quantum process. Standard quantum process tomography suffers from exponentially scaling of…
Population transfer under local dephasing
Wei Huang, Wentao Zhang, Chu Guo
Stimulated Raman adiabatic passage is a well-known technique for quantum population transfer due to its robustness again various sources of noises. Here we consider quantum populat…
Fast Laser Cooling Using Optimal Quantum Control
Xie-Qian Li, Shuo Zhang, Jie Zhang +3
Cooling down a trapped ion into its motional ground state is a central step for trapped ions based quantum information processing. State of the art cooling schemes often work under…
Steady state phonon occupation of EIT cooling: higher order calculations
Shuo Zhang, Tian-Ci Tian, Zheng-Yang Wu +5
Electromagnetically induced transparency (EIT) cooling has established itself as one of the most widely used cooling schemes for trapped ions during the past twenty years. Compared…
Fast Cooling of Trapped Ion in Strong Sideband Coupling Regime
Shuo Zhang, Jian-Qi Zhang, Wei Wu +2
Trapped ion in the Lamb-Dicke regime with the Lamb-Dicke parameter can be cooled down to its motional ground state using sideband cooling. Standard sideband cooling works i…
Simulation of state evolutions in Gross-Neveu model by matrix product state representation
De-Sheng Li, Hao Wang, Chu Guo +2
A quantum algorithm to simulate the real time dynamics of two-flavor massive Gross-Neveu model is presented in Schrodinger picture. We implement the simulation on a classic compute…
Verifying Random Quantum Circuits with Arbitrary Geometry Using Tensor Network States Algorithm
Chu Guo, Youwei Zhao, He-Liang Huang
The ability to efficiently simulate random quantum circuits using a classical computer is increasingly important for developing Noisy Intermediate-Scale Quantum devices. Here we pr…
Quantum inspired K-means algorithm using matrix product states
Xiao Shi, Yun Shang, Chu Guo
Matrix product state has become the algorithm of choice when studying one-dimensional interacting quantum many-body systems, which demonstrates to be able to explore the most relev…
Long distance adiabatic wireless energy transfer via multiple coils coupling
Wei Huang, Xiaowei Qu, Shan Yin +4
Recently, the wireless energy transfer model can be described as the Schrodinger equation [Annals of Physics, 2011, 326(3): 626-633; Annals of Physics, 2012, 327(9): 2245-2250]. Th…
Population transfer via a finite temperature state
Wei Huang, Baohua Zhu, Wei Wu +3
We study quantum population transfer via a common intermediate state initially in thermal equilibrium with a finite temperature , exhibiting a multi-level Stimulated Raman adiab…