Robert Weis

Kirchhoff Institute for Physics

The Kirchhoff Institute for Physics (KIP) is named after a prominent physicist of the 19th Century: Gustav Robert Kirchhoff, who worked in Heidelberg for 21 years. His well-known lectures on experimental and theoretical physics attracted many students. Kirchhoff's ground-breaking research was extraordinarily diverse, spanning electrical, magnetic, optical, elastic, hydrodynamic and thermal processes. His laws for electrical circuits are well-known. At the time he was in Heidelberg, in conjunction with Robert Wilhelm Bunsen, he discovered spectral analysis and its application to solar radiation. In this way, Kirchhoff laid the foundation for modern astrophysics, as well as formulating the laws of thermal radiation, which played a key role in the discovery of quantum physics. The KIP aims to continue in this tradition of diverse scientific research and education.

Physikalisches Kolloquium

14. November 2025 5:00 pm  News from Wendelstein 7-X: Towards Clean Energy from Fusion

Prof. Dr. Thomas Klinger , Max-Planck-Institut für Plasmaphysik, Garching,The stable generation of high-temperature and low-density hydrogen plasmas (ion and electron temperature in the range 10-20 keV resp. 100-200 million degree Kelvin) is the basis for the use of nuclear fusion to generate heat and electric power. The most promising path is to use strong, toroidally shaped, twisted magnetic fields to confine the electrically charged plasma particles in order to avoid heat losses to the cold, solid wall elements.more...

News

CQD Colloquium (funded by STRUCTURES) next Wednesday, 12 November, Dr. Robert Smith, Oxford, PI Goldbox

Next CQD Colloquium (funded by Structures) will be given by Dr. Robert Smith, University of Oxford

Please note the place and time: 

Wednesday, 12November

at 4:30 p.m., PI, INF 226, K 1-3, Goldbox

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Statistics at the Limit: Thermodynamics of Light in Two-State Systems

Thermodynamics is usually associated with large systems and many particles. In our new paper, we show that even few-particle systems obey the laws of thermodynamics.

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