Capturing the Macroscopic Behaviour of Molecular Dynamics with Membership Functions

Markov processes serve as foundational models in many scientific disciplines, such as molecular dynamics, and their simulation forms a common basis for analysis. While simulations produce useful trajectories, obtaining macroscopic information directly from microstate data presents significant challenges. This paper addresses this gap by introducing the concept of membership functions being the macrostates themselves. We derive equations for the holding times of these macrostates and demonstrate their consistency with the classical definition. Furthermore, we discuss the application of the ISOKANN method for learning these quantities from simulation data. In addition, we present a novel method for extracting transition paths based on the ISOKANN results and demonstrate its efficacy by applying it to simulations of the mu-opioid receptor. With this approach we provide a new perspective on analyzing the macroscopic behaviour of Markov systems..

Medienart:

Preprint

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

arXiv.org - (2024) vom: 16. Apr. Zur Gesamtaufnahme - year:2024

Sprache:

Englisch

Beteiligte Personen:

Sikorski, Alexander [VerfasserIn]
Rabben, Robert Julian [VerfasserIn]
Chewle, Surahit [VerfasserIn]
Weber, Marcus [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

510
530
Physics - Chemical Physics
Statistics - Methodology

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XAR043285104