Finite Systems

Welcome to the Finite Systems department!

We study systems with a finite number of degrees of freedom, or a finite volume with a well defined boundary.

Our focus is the dynamics of such systems interacting with the environment which can be a material environment (ultracold gases, quantum aggregates, clusters etc.), radiation from advanced light sources, or noise, to give a few examples. Our theoretical tools range from traditional quantum methods over novel semiclassical approaches to classical concepts of nonlinear dynamics.

We are interested in cooporate and collective phenomena in such systems which emerge under extreme conditions, e.g., a cold environment or fast excitation.

Key topics include Rydberg dynamics in cold gases, long-range chemical binding, attosecond dynamics in atoms, molecules, clusters and plasmas, and the response of such systems to short X-ray pulses as avaiable from free electron lasers.

A characteristic hallmark of our work is a close interaction with relevant experimental groups. To this end we are members of two DFG funded priority programs,  GiRyd and  QUTIF, for ultracold Rydberg and ultrafast phenomena, respectively. 

If you are interested join us for a master thesis, PhD or postdoc. Informal inquires may be sent to Prof. Dr. Jan M Rost (rost[at]

head of department
Prof. Dr. Jan M. Rost
Finite Systems group
Prof. Dr. Jan M. Rost
Prof. Dr. Ulf Saalmann
Dr. Panos Giannakeas
Correlations and Transport in Rydberg Matter
Dr. Matthew Eiles
Dr. Alexander Eisfeld


Quantum dynamics

16:30 - Wednesday


Group meeting




Atomic Physics
International Workshop


Extreme Atomic Systems (EAS)

February 13 - 18, 2022


Atomic Summer Camp

July 26 - 30, 2021


Max Planck Institute for the Physics of Complex Systems  |  Nöthnitzer Straße 38, 01187 Dresden  |  fon: +49(351)871-2204  |  fax: +49(351)871-2299