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We study a systematic improvement of perturbation theory for gauge fields on the lattice; the improvement entails resumming, to all orders in the coupling constant, a dominant subclass of tadpole diagrams. This method, originally proposed…

高能物理 - 格点 · 物理学 2009-11-11 M. Constantinou , H. Panagopoulos , A. Skouroupathis

With a focus on universal quantum computing for quantum simulation, and through the example of lattice gauge theories, we introduce rather general quantum algorithms that can efficiently simulate certain classes of interactions consisting…

高能物理 - 格点 · 物理学 2023-12-27 Zohreh Davoudi , Alexander F. Shaw , Jesse R. Stryker

Automatic cubatures approximate multidimensional integrals to user-specified error tolerances. For high dimensional problems, it makes sense to fix the sampling density but determine the sample size, $n$, automatically. Bayesian cubature…

数值分析 · 数学 2021-02-16 R. Jagadeeswaran , Fred J. Hickernell

Wavelet (Besov) priors are a promising way of reconstructing indirectly measured fields in a regularized manner. We demonstrate how wavelets can be used as a localized basis for reconstructing permeability fields with sharp interfaces from…

数值分析 · 数学 2019-07-09 Philipp Wacker , Peter Knabner

We propose a randomized multiplicative weight update (MWU) algorithm for $\ell_{\infty}$ regression that runs in $\widetilde{O}\left(n^{2+1/22.5} \text{poly}(1/\epsilon)\right)$ time when $\omega = 2+o(1)$, improving upon the previous best…

数据结构与算法 · 计算机科学 2025-04-29 Deeksha Adil , Shunhua Jiang , Rasmus Kyng

We prove that the generic quantum speedups for brute-force search and counting only hold when the process we apply them to can be efficiently inverted. The algorithms speeding up these problems, amplitude amplification and amplitude…

量子物理 · 物理学 2026-04-27 Ewin Tang , John Wright

This work explores the application of the fast assembly and formation strategy from [8, 17] to trimmed bi-variate parameter spaces. Two concepts for the treatment of basis functions cut by the trimming curve are investigated: one employs a…

计算工程、金融与科学 · 计算机科学 2023-08-29 Benjamin Marussig

This work proposes a novel adaptive linearized alternating direction multiplier method (LADMM) to convex optimization, which improves the convergence rate of the LADMM-based algorithm by adjusting step-size iteratively.The innovation of…

最优化与控制 · 数学 2024-07-04 Boran Wang

Gauge-fixing as a sampling procedure of gauge copies provides a possibility to construct well-defined gauges also beyond perturbation theory. The implementation of such sampling strategies in lattice gauge theory is briefly outlined, and…

高能物理 - 理论 · 物理学 2013-03-15 Axel Maas

After an introduction in which we review the fundamental difficulty in constructing lattice chiral gauge theories, we discuss the analytic and numerical evidence that abelian lattice chiral gauge theories can be non-perturbatively…

高能物理 - 格点 · 物理学 2017-08-23 Maarten Golterman , Yigal Shamir

In this paper, we present a generic framework that allows accelerating almost arbitrary non-accelerated deterministic and randomized algorithms for smooth convex optimization problems. The main approach of our envelope is the same as in…

We propose a family of quantum algorithms for estimating Gowers uniformity norms $ U^k $ over finite abelian groups and demonstrate their applications to testing polynomial structure and counting arithmetic progressions. Building on recent…

量子物理 · 物理学 2025-08-05 En-Jui Kuo

Achieving faster execution with shorter compilation time can foster further diversity and innovation in neural networks. However, the current paradigm of executing neural networks either relies on hand-optimized libraries, traditional…

机器学习 · 计算机科学 2020-01-27 Byung Hoon Ahn , Prannoy Pilligundla , Amir Yazdanbakhsh , Hadi Esmaeilzadeh

The Frank Wolfe algorithm (FW) is a popular projection-free alternative for solving large-scale constrained optimization problems. However, the FW algorithm suffers from a sublinear convergence rate when minimizing a smooth convex function…

最优化与控制 · 数学 2021-10-20 Robin Francis , Sundeep Prabhakar Chepuri

We derive formulas for the Coulomb matrix within the full-potential linearized augmented-plane-wave (FLAPW) method. The Coulomb matrix is a central ingredient in implementations of many-body perturbation theory, such as the Hartree-Fock and…

材料科学 · 物理学 2010-03-01 Christoph Friedrich , Arno Schindlmayr , Stefan Bluegel

This paper is concerned with the construction of a fast algorithm for computing the maximum speed of propagation in the Riemann solution for the Euler system of gas dynamics with the co-volume equation of state. The novelty in the algorithm…

数值分析 · 数学 2016-07-20 Jean-Luc Guermond , Bojan Popov

In order to increase the measured phase of an atom interferometer and improve its sensitivity, researchers attempt to increase the enclosed space-time area using two methods: creating larger separations between the interferometer arms and…

We present a framework for accelerating a spectrum of machine learning algorithms that require computation of bilinear inverse forms $u^\top A^{-1}u$, where $A$ is a positive definite matrix and $u$ a given vector. Our framework is built on…

机器学习 · 统计学 2016-05-31 Chengtao Li , Suvrit Sra , Stefanie Jegelka

The continuous wavelet transform (CWT) is very useful for processing signals with intricate and irregular structures in astrophysics and cosmology. It is crucial to propose precise and fast algorithms for the CWT. In this work, we review…

天体物理仪器与方法 · 物理学 2024-08-28 Yun Wang , Ping He

A new algorithm for fixing the gauge to (direct) maximal center gauge in SU(N) lattice gauge theory is presented. We check how this method works on SU(3) configurations which are vortex-like, and show how these configurations look like when…

高能物理 - 格点 · 物理学 2015-06-25 Alvaro Montero