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.

Ruperto Carola Lecture Series 200 Years Gustav Kirchhoff

Free spirit. Pioneer. Visionary: Gustav Kirchhoff's scientific findings are still of great importance today for many current research topics. As the founder of spectral analysis in the 19th century, the outstanding physicist (1824 to 1887) not only paved the way for modern astrophysics, but also environmental physics, modern atomic and molecular physics, chemistry and quantum physics still use spectroscopy today. And without Kirchhoff's rules for electrical networks, chip development and the analysis of electrical circuits would be inconceivable.

The Ruperto Carola lecture series in the summer semester 2024 on the occasion of the 200th birthday of Gustav Kirchhoff, who researched and taught as a professor at Heidelberg University for more than 20 years, provides - in addition to a historical introduction to Kirchhoff's life and work - insights into areas of modern research on which Kirchhoff's work has had an influence to this day.

Physikalisches Kolloquium

31. May 2024 5:00 pm  The very hot periodic table

Apl. Prof. Dr. José Crespo, Max-Planck-Institut für Kernphysik, Heidelberg, All chemical elements are born naked and do not bind electrons until the temperature drops sufficiently. Most of the baryonic matter remains highly charged since the re- ionization era, be it in the cores of stars, astrophysical shocks, accretion disks, or the intra-cluster and intergalactic media. Thus, the study of highly charged ions in the laboratory is essential for astrophysical diagnostics. more...


CQD Colloquium (funded by Structures) will be given by Prof. Stephanie Reimann, University of Lund

Next CQD Colloquium (funded by Structures) will be given by Prof. Stephanie Reimann. Please note the special place and time: 


Wednesday, 29.05. at 10 a.m., INF 255a, EINC, SR 1





The main talk will be given by Prof. Stephanie Reimann, Lund University, Sweden about:


Persistent currents and vortices in binary and dipolar condensates


S.M. Reimann


Lund University, LTH, 22100 Lund, Sweden



A dipolar Bose-Einstein condensate that is set rotating in a toroidal trap may act in distinctly different ways, depending on whether it is in the superfluid or in the “supersolid” phase recently discovered. It can support a supersolid persistent current that in part consists of states where a fraction of the condensate mimics solid-body rotation, opposite to that of a vortex. Furthermore, a rotating toroidal supersolid may show hysteretic behavior which is qualitatively different depending on the superfluid fraction of the condensate.

In this talk, I will give a brief overview on some of the recent developments in the field of dipolar supersolids. I will also discuss stacked droplets in anti-dipolar condensates, which offer intriguing possibilities to investigate vorticity and persistent flow in a setting that is rather different from the typical filament structures. The presence of a vortex line impacts on the phase transition into the supersolid region. I will also give an outlook how this setup may be used to study persistent current and distribution of angular momentum in the transition to the supersolid regime.


The pretalk will be given by Eugen Dizer about “Spectral properties of ultracold Fermi gases".

For information about the CQD Colloquium, please see:


  more ...