Johannes Gutenberg University Mainz > Faculty 08 > Physics > Physics Research > Research Areas > Atomic and Quantum Physics > AG Windpassinger

Our research group focuses on using cold, neutral atoms for quantum optical and quantum information science. Our work spans from fundamental studies of light–matter interactions to the development of deployable quantum technologies.

One line of research focuses on light propagation in dipolar media, where we investigate the interplay between light-induced and magnetic dipole-dipole interactions in dense, cold samples of dysprosium atoms.

Within the Quantum Gases in Microgravity (QUANTUS) projects, we aim to perform spaceborne precision tests of Einstein’s equivalence principle, conducting experiments both at the Bremen Drop Tower and on the International Space Station (ISS). In this context, our group mainly focuses on state-of-the-art solutions for laser light distribution, switching, and system integration under the stringent requirements of microgravity environments.

In addition, we are advancing the development of deployable quantum sensors based on cold atoms, with a focus on miniaturization and ruggedization to enable their operation outside the laboratory environment.

We offer plenty of exciting topics for Bachelor’s, Master’s or PhD theses. If you are interested in joining the group, please do not hesitate to contact us.

For a full list of publications click the button below.

We are offering an exicting insight into the world of atomic physics & cold atoms with our MOT (Magneto-Optical-Trap) project. For more information click the button below!

For an up to date list of offered seminars and lectures please refer to the course catalog at JOGU-StINe.

For all research projects, we are looking for interested and motivated Bachelor, Master and PhD students. If you are interested in joining, do not hesitate to contact us. We have lots of exciting research to do!

As a pre-requisite you should, first of all, bring a strong motivation for experimental work in a modern quantum optics lab. Master’s and PhD students should ideally have attended courses on advanced atomic physics, quantum mechanics, laser physics and quantum optics.

For more information regarding open research positions please contact Prof. Dr. Patrick Windpassinger (windpass@uni-mainz.de).

Some examples of possible Bachelor and Master theses are listed below. For more detailed information, please visit each project’s website or contact us!

Light Propagation in Dipolar Media

  • Setup and characterization of a racetrack coil pair to optimize the optical transport of cold atoms.
  • Characterization and stabilization of a frequency doubling cavity (842nm -> 421nm).
  • Investigation of the atomic state distribution using the Stern-Gerlach method.

Deployable Quantum Sensors

  • Characterization of a Zerodur vacuum chamber for quantum optical experiments.
  • Development of a miniaturized laser system and control electronics for the generation of a magneto optical trap (MOT).

Quantum Gases in Microgravity

  • Characterization of a ground-based spectroscopy setup for comparison with the BECCAL spectroscopy module.
  • Programming of a PXI-based measurement sequence for testing BECCAL optical distribution benches.