Zobrazeno 1 - 10
of 37 808
pro vyhledávání: '"gradient flow"'
We present the lattice simulation of the renormalization group flow in the $3$-dimensional $O(N)$ linear sigma model. This model possesses a nontrivial infrared fixed point, called Wilson--Fisher fixed point. Arguing that the parameter space of runni
Externí odkaz:
http://arxiv.org/abs/2410.19425
Particle-based variational inference methods (ParVIs) use non-parametric variational families represented by particles to approximate the target distribution according to the kernelized Wasserstein gradient flow for the Kullback-Leibler (KL) divergen
Externí odkaz:
http://arxiv.org/abs/2410.17935
The gradient flow scheme has emerged as a prominent nonperturbative renormalization scheme on the lattice, where flow time is introduced to define the renormalization scale. In this study we perturbatively compute the gradient flow coupling for the S
Externí odkaz:
http://arxiv.org/abs/2410.15668
Understanding the training dynamics of transformers is important to explain the impressive capabilities behind large language models. In this work, we study the dynamics of training a shallow transformer on a task of recognizing co-occurrence of two
Externí odkaz:
http://arxiv.org/abs/2410.09605
Momentum exchange between a heavy quark and a hot quark-gluon medium can be characterized nonperturbatively in terms of field-strength field-strength (E-E and B-B) correlators along a Polyakov loop. These can be studied on the lattice and analyticall
Externí odkaz:
http://arxiv.org/abs/2410.01578
Autor:
Black, Matthew, Harlander, Robert, Lange, Fabian, Rago, Antonio, Shindler, Andrea, Witzel, Oliver
Fermionic gradient flow in combination with the short-flow-time expansion provides a computational method where the renormalisation of hadronic matrix elements on the lattice can be simplified to address e.g. the issue that operators with different m
Externí odkaz:
http://arxiv.org/abs/2409.18891
In this paper, a gradient flow model is proposed for conducting ground state calculations in Wigner formalism of many-body system in the framework of density functional theory. More specifically, an energy functional for the ground state in Wigner fo
Externí odkaz:
http://arxiv.org/abs/2409.10851
Wave energy converters (WECs) represent an innovative technology for power generation from renewable sources (marine energy). Although there has been a great deal of research into such devices in recent decades, the power output of a single device ha
Externí odkaz:
http://arxiv.org/abs/2409.10200
Autor:
Zhu, Jia-Jie
Otto's (2001) Wasserstein gradient flow of the exclusive KL divergence functional provides a powerful and mathematically principled perspective for analyzing learning and inference algorithms. In contrast, algorithms for the inclusive KL inference, i
Externí odkaz:
http://arxiv.org/abs/2411.00214
Autor:
Schierholz, Gerrit
Starting from the running coupling in the gradient flow scheme, the QCD Lambda parameter $\Lambda_{\,\overline{\!\rm MS\!}\;}$ is determined analytically with respect to the reference scale $w_0$ in the pure gauge theory. A key element is the gluon c
Externí odkaz:
http://arxiv.org/abs/2410.17677