activity
20242026
most citedAngle-dependent in-situ fast flavor transformations in post-neutron star merger disks

10 citations · 17 across the 13 of their papers we have counts for

collaborators

17 papers

cs.LG2026

Frozen in Time: How a Physics Foundation Model Forgets Under Sim-to-Real Adaptation

Haaris Mian, Miles Cranmer, Alessandro Favero +1

Scientific foundation models (SciFMs) have achieved remarkable performance on a wide range of PDEs, including the ability to efficiently adapt to unseen data distributions with add…

cs.LG2026

From Simulated Fluids to Living Tissue: Zero-Shot Foundation Model Transfer to Perturbed Embryos

Louisa Cornelis, Haewon Jeong, Irina Espejo +1

Morphogenesis is driven by the interplay of genetic regulation and tissue mechanics. In vivo video data is limited, particularly under genetic mutations and environmental perturbat…

cs.CE2026

Mesh-Native Tokenisation: Retrofitting Foundation Models to Unstructured Data

Georg Maierhofer, Miles Cranmer, Payel Mukhopadhyay

Physics foundation models are an increasingly popular approach for building versatile emulators for spatiotemporal systems. They require tokenisation layers that lift physical fiel…

cs.LG2026

Otter Weather: Skillful and Computationally Efficient Medium-Range Weather Forecasting

Cristiana Diaconu, Jonas Scholz, Aliaksandra Shysheya +4

State-of-the-art medium-range AI weather models can outperform traditional Numerical Weather Prediction (NWP) but require massive training budgets. This restricts usage for under-r…

physics.flu-dyn2026

Emergent Transfer of a Physics Foundation Model from Simulation to Laboratory Turbulence

Payel Mukhopadhyay, Stefan S. Nixon, Romain Watteaux +20

Whether physics foundation models can be usefully deployed on laboratory experiments remains an open question for scientific machine learning (ML). We test this question on the Ray…

cs.AI2026★ 1 cited

MIMIC: A Generative Multimodal Foundation Model for Biomolecules

Siavash Golkar, Jake Kovalic, Irina Espejo Morales +28

Biological function emerges from coupled constraints across sequence, structure, regulation, evolution, and cellular context, yet most foundation models in biology are trained with…

cs.LG2026

On the Value of Tokeniser Pretraining in Physics Foundation Models

Hadi Sotoudeh, Payel Mukhopadhyay, Ruben Ohana +4

We investigate the impact of tokeniser pretraining on the accuracy and efficiency of physics emulation. Modern high-resolution simulations produce vast volumes of data spanning div…

cs.LG2026

Probabilistic Retrofitting of Learned Simulators

Cristiana Diaconu, Miles Cranmer, Richard E. Turner +2

Dominant approaches for modelling Partial Differential Equations (PDEs) rely on deterministic predictions, yet many physical systems of interest are inherently chaotic and uncertai…

cs.LG2025

Physics Steering: Causal Control of Cross-Domain Concepts in a Physics Foundation Model

Rio Alexa Fear, Payel Mukhopadhyay, Michael McCabe +2

Foundation models trained on text and images have been shown to develop abstract internal features that align with human concepts and that can be directly manipulated via activatio…

cs.LG2025

Predicting partially observable dynamical systems via diffusion models with a multiscale inference scheme

Rudy Morel, Francesco Pio Ramunno, Jeff Shen +18

Conditional diffusion models provide a natural framework for probabilistic prediction of dynamical systems and have been successfully applied to fluid dynamics and weather predicti…

astro-ph.IM2025

Universal Spectral Tokenization via Self-Supervised Panchromatic Representation Learning

Jeff Shen, Francois Lanusse, Liam Holden Parker +24

Sequential scientific data span many resolutions and domains, and unifying them into a common representation is a key step toward developing foundation models for the sciences. Ast…

cs.LG2025

Walrus: A Cross-Domain Foundation Model for Continuum Dynamics

Michael McCabe, Payel Mukhopadhyay, Tanya Marwah +22

Foundation models have transformed machine learning for language and vision, but achieving comparable impact in physical simulation remains a challenge. Data heterogeneity and unst…

astro-ph.IM2025

AION-1: Omnimodal Foundation Model for Astronomical Sciences

Liam Parker, Francois Lanusse, Jeff Shen +24

While foundation models have shown promise across a variety of fields, astronomy still lacks a unified framework for joint modeling across its highly diverse data modalities. In th…

cs.LG2025

Overtone: Cyclic Patch Modulation for Clean, Efficient, and Flexible Physics Emulators

Payel Mukhopadhyay, Michael McCabe, Ruben Ohana +1

Transformer-based PDE surrogates achieve remarkable performance but face two key challenges: fixed patch sizes cause systematic error accumulation at harmonic frequencies, and comp…

astro-ph.HE2025★ 10 cited

Angle-dependent in-situ fast flavor transformations in post-neutron star merger disks

Kelsey A. Lund, Payel Mukhopadhyay, Jonah M. Miller +1

The remnant black hole-accretion disk system resulting from binary neutron star mergers has proven to be a promising site for synthesizing the heaviest elements via rapid neutron c…

cs.LG2024★ 6 cited

The Well: a Large-Scale Collection of Diverse Physics Simulations for Machine Learning

Ruben Ohana, Michael McCabe, Lucas Meyer +24

Machine learning based surrogate models offer researchers powerful tools for accelerating simulation-based workflows. However, as standard datasets in this space often cover small…

astro-ph.HE2024

The time evolution of fast flavor crossings in post-merger disks around a black hole remnant

Payel Mukhopadhyay, Jonah Miller, Gail C. McLaughlin

We postprocess a three-dimensional general relativistic, full transport neutrino radiation magnetohydrodynamics simulation of the black hole--accretion disk--wind system thought to…