Time complexity analysis of quantum algorithms via linear representations for nonlinear ordinary and partial differential equations

S Jin, N Liu, Y Yu - Journal of Computational Physics, 2023 - Elsevier
We construct quantum algorithms to compute the solution and/or physical observables of
nonlinear ordinary differential equations (ODEs) and nonlinear Hamilton-Jacobi equations …

Fast quantum algorithm for attention computation

Y Gao, Z Song, X Yang, R Zhang - arXiv preprint arXiv:2307.08045, 2023 - arxiv.org
Large language models (LLMs) have demonstrated exceptional performance across a wide
range of tasks. These models, powered by advanced deep learning techniques, have …

Quantum speedups of optimizing approximately convex functions with applications to logarithmic regret stochastic convex bandits

T Li, R Zhang - Advances in Neural Information Processing …, 2022 - proceedings.neurips.cc
We initiate the study of quantum algorithms for optimizing approximately convex functions.
Given a convex set $\mathcal {K}\subseteq\mathbb {R}^{n} $ and a function …

Quantum Langevin dynamics for optimization

Z Chen, Y Lu, H Wang, Y Liu, T Li - arXiv preprint arXiv:2311.15587, 2023 - arxiv.org
We initiate the study of utilizing Quantum Langevin Dynamics (QLD) to solve optimization
problems, particularly those non-convex objective functions that present substantial …

Learning quantum processes with quantum statistical queries

C Wadhwa, M Doosti - arXiv preprint arXiv:2310.02075, 2023 - arxiv.org
Learning complex quantum processes is a central challenge in many areas of quantum
computing and quantum machine learning, with applications in quantum benchmarking …

Quantum algorithm for estimating volumes of convex bodies

S Chakrabarti, AM Childs, SH Hung, T Li… - ACM Transactions on …, 2023 - dl.acm.org
Estimating the volume of a convex body is a central problem in convex geometry and can be
viewed as a continuous version of counting. We present a quantum algorithm that estimates …

Stochastic quantum sampling for non-logconcave distributions and estimating partition functions

G Ozgul, X Li, M Mahdavi, C Wang - arXiv preprint arXiv:2310.11445, 2023 - arxiv.org
We present quantum algorithms for sampling from non-logconcave probability distributions
in the form of $\pi (x)\propto\exp (-\beta f (x)) $. Here, $ f $ can be written as a finite sum $ f …

A quantum central path algorithm for linear optimization

B Augustino, J Leng, G Nannicini, T Terlaky… - arXiv preprint arXiv …, 2023 - arxiv.org
We propose a novel quantum algorithm for solving linear optimization problems by quantum-
mechanical simulation of the central path. While interior point methods follow the central …

Generalized Short Path Algorithms: Towards Super-Quadratic Speedup over Markov Chain Search for Combinatorial Optimization

S Chakrabarti, D Herman, G Ozgul, S Zhu… - arXiv preprint arXiv …, 2024 - arxiv.org
We analyze generalizations of algorithms based on the short-path framework first proposed
by Hastings [Quantum 2, 78 (2018)], which has been extended and shown by Dalzell et …

Quantum Algorithms for Non-smooth Non-convex Optimization

C Liu, C Guan, J He, J Lui - arXiv preprint arXiv:2410.16189, 2024 - arxiv.org
This paper considers the problem for finding the $(\delta,\epsilon) $-Goldstein stationary
point of Lipschitz continuous objective, which is a rich function class to cover a great number …