8 papers
Enhanced Neural Quantum State via Annealed Gradient Descent
Shiwei Zhou, Yiming Huang, Xiao Yuan +1
Neural quantum states offer expressive representations of quantum many-body wave functions, yet their practical accuracy can be limited by stochastic optimization rather than repre…
Universal Analog Quantum Simulation
Yiming Huang, Jiaxing Song, Xiaoxia Cai +1
Analog quantum simulators emulate complex many-body dynamics through native continuous-time evolution under hardware-defined interactions. Yet once a platform is specified, its int…
Theory of Quantum Imaginary-Time Mpemba Effect
Yumeng Zeng, Jeongrak Son, Mile Gu +1
Quantum imaginary-time evolution (QITE) is a fundamental framework for preparing ground and thermal states, yet its computational cost scales significantly with the evolution durat…
A unified framework for efficient quantum simulation of nonlinear spectroscopy
Long Xiong, Xiaoyang Wang, Xiaoxia Cai +1
Nonlinear spectroscopy is a cornerstone of quantum science, providing unique access to multi-point correlations, quantum coherence, and couplings that are invisible to linear metho…
A Review of Variational Quantum Algorithms: Insights into Fault-Tolerant Quantum Computing
Zhirao Wang, Junxiang Huang, Runyu Ye +8
Variational quantum algorithms (VQAs) have established themselves as a central computational paradigm in the Noisy Intermediate-Scale Quantum (NISQ) era. By coupling parameterized…
Constraint-Aware Quantum Optimization via Hamming Weight Operators
Yajie Hao, Qiming Ding, Xiao Yuan +1
Constrained combinatorial optimization with strict linear constraints underpins applications in drug discovery, power grids, logistics, and finance, yet remains computationally dem…