29 citations · 54 across the 18 of their papers we have counts for
6 papers · 2 filters
Quantum score matching with applications to learning thermal states
Yulong Dong, Jiaqi Leng
Score matching has driven major advances in classical generative learning by enabling models to learn from data without evaluating intractable normalization constants, or partition…
Accelerating quantum Gibbs sampling without quantum walks
Jiaqi Leng, Jiaqing Jiang, Lin Lin
Szegedy's quantum walk quadratically accelerates reversible classical Markov chains, but extending this mechanism to efficiently implementable quantum Gibbs samplers has remained c…
Quantum Estimation of Non-Hermitian Pseudospectra
Gengzhi Yang, Jiaqi Leng, Xiaodi Wu +1
Non-Hermitian many-body systems can be spectrally unstable, so small perturbations may induce large eigenvalue shifts. The pseudospectrum quantifies this instability and provides a…
Predicting properties of quantum thermal states from a single trajectory
Jiaqing Jiang, Jiaqi Leng, Lin Lin
Estimating thermal expectation values of observables is a fundamental task in quantum physics, quantum chemistry, and materials science. While recent quantum algorithms have enable…
Resource-efficient quantum simulation of transport phenomena via Hamiltonian embedding
Joseph Li, Gengzhi Yang, Jiaqi Leng +1
Transport phenomena play a key role in a variety of application domains, and efficient simulation of these dynamics remains an outstanding challenge. While quantum computers offer…
Continuous Unitary Designs for Universally Robust Quantum Control
Xiaodong Yang, Jiaqing Leng, Jun Li
Unitary designs are unitary ensembles that emulate Haar-random unitary statistics. They provide a vital tool for studying quantum randomness and have found broad applications in qu…