physics.comp-ph · 2026-09-20 · No. 119

Computational Physics, 2026-09-20.

2 new papers in physics.comp-ph. Titles, authors, abstracts. Links to arXiv. Want this in your inbox every morning? Subscribe →

01 — The papers

2 entries
  1. 01

    How Does Distribution Shift Shape Pretraining Gains in Neural PDE Surrogates?

    Pochinapeddi Sai Bhargav, Nithin Somasekharan, Rohit Sunil Kanchi, Sicheng He, Shaowu Pan

    physics.comp-ph · cs.LG · physics.flu-dyn

    Pretraining a neural PDE surrogate can reduce the amount of new CFD data needed when geometry or modeled physics changes. However, it remains unclear how different components of distribution shift affect this benefit. We pretrain a surrogate on 254,909 RANS solutions from one airfoil family and fine-tune it on a new family under two target settings with matched freestream ranges: the same Spalart-Allmaras (SA) modeling and SA with added $e^N$...

    arxiv.org/abs/2609.20814 · PDF

  2. 02

    Correlation-Free Transition Path Sampling through Shooting Point Generation Guided by Committor Learning

    Maximilian Negedly, Sebastian Falkner, Alessandro Coretti, Christoph Dellago

    physics.comp-ph · cond-mat.stat-mech · cs.LG

    Studying the dynamical behavior of a system often depends on characterizing how it transitions between long-lived states. Because such transitions are rare, observing them usually requires specialized enhanced sampling techniques. Transition Path Sampling (TPS) is a well-established method for generating reactive trajectories, which is simple to implement and does not require the definition of a preconceived reaction coordinate. However, its...

    arxiv.org/abs/2609.20461 · PDF

This edition is part of The Daily Abstract — physics.comp-ph archive. Subscribe to receive these in your inbox each morning, automatically translated to Spanish, with reply-to-PDF: arxivdaily.ignorelist.com.

Colophon Set in Georgia, with system sans for interface chrome and a monospaced stack for code and paper identifiers. Sole accent: amber #D99C5E. Built and served on an always-free VM. The masthead is set 14% letterspaced because newspapers do that and it works.