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Main Authors: Antoniadis, Panagiotis, Pavesi, Beatrice, Olsson, Simon, Winther, Ole
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.11216
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author Antoniadis, Panagiotis
Pavesi, Beatrice
Olsson, Simon
Winther, Ole
author_facet Antoniadis, Panagiotis
Pavesi, Beatrice
Olsson, Simon
Winther, Ole
contents Molecular dynamics (MD) is a central computational tool in physics, chemistry, and biology, enabling quantitative prediction of experimental observables as expectations over high-dimensional molecular distributions such as Boltzmann distributions and transition densities. However, conventional MD is fundamentally limited by the high computational cost required to generate independent samples. Generative molecular dynamics (GenMD) has recently emerged as an alternative, learning surrogates of molecular distributions either from data or through interaction with energy models. While these methods enable efficient sampling, their transferability across molecular systems is often limited. In this work, we show that incorporating auxiliary sources of information can improve the data efficiency and generalization of transferable implicit transfer operators (TITO) for molecular dynamics. We find that coarse-grained TITO models are substantially more data-efficient than Boltzmann Emulators, and that incorporating protein language model (pLM) embeddings further improves out-of-distribution generalization. Our approach, PLaTITO, achieves state-of-the-art performance on equilibrium sampling benchmarks for out-of-distribution protein systems, including fast-folding proteins. We further study the impact of additional conditioning signals such as structural embeddings, temperature, and large-language-model-derived embeddings on model performance.
format Preprint
id arxiv_https___arxiv_org_abs_2602_11216
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Protein Language Model Embeddings Improve Generalization of Implicit Transfer Operators
Antoniadis, Panagiotis
Pavesi, Beatrice
Olsson, Simon
Winther, Ole
Machine Learning
Biological Physics
Molecular dynamics (MD) is a central computational tool in physics, chemistry, and biology, enabling quantitative prediction of experimental observables as expectations over high-dimensional molecular distributions such as Boltzmann distributions and transition densities. However, conventional MD is fundamentally limited by the high computational cost required to generate independent samples. Generative molecular dynamics (GenMD) has recently emerged as an alternative, learning surrogates of molecular distributions either from data or through interaction with energy models. While these methods enable efficient sampling, their transferability across molecular systems is often limited. In this work, we show that incorporating auxiliary sources of information can improve the data efficiency and generalization of transferable implicit transfer operators (TITO) for molecular dynamics. We find that coarse-grained TITO models are substantially more data-efficient than Boltzmann Emulators, and that incorporating protein language model (pLM) embeddings further improves out-of-distribution generalization. Our approach, PLaTITO, achieves state-of-the-art performance on equilibrium sampling benchmarks for out-of-distribution protein systems, including fast-folding proteins. We further study the impact of additional conditioning signals such as structural embeddings, temperature, and large-language-model-derived embeddings on model performance.
title Protein Language Model Embeddings Improve Generalization of Implicit Transfer Operators
topic Machine Learning
Biological Physics
url https://arxiv.org/abs/2602.11216