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27 Sep 2026

Seminar über Theorie der kondensierten Materie / TRR146 Seminar

F. Schmid / G. Settanni / P. Virnau / L. Stelzl

14:30 Uhr s.t., Minkowski-Raum, 05-119, Staudingerweg 7

Tanja Schilling, Prof. Dr.
When modelling soft matter systems, the Langevin equation is often used in a form that contains a potential of mean force or a thermodynamic driving force. (Think e.g. of Cahn-Hilliard theory, phase-field modelling or dissipative particle dynamics.) We will show that the introduction of a thermodynamic driving force is, in general, accompanied by a violation of the fluctuation-dissipation theorem. Interestingly, this violation stems from contributions of the fourth, fifth, and higher-order derivatives of the particles' positions.
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