We are hiring PhD students to work on quantum optics with defects in solids, focusing on diamond color centers and hBN defects for future quantum networks. The goal is to develop efficient light–matter interfaces by combining solid-state quantum emitters with nanophotonic cavities and waveguides, advancing technologies relevant to quantum repeaters and long-distance entanglement distribution.

What you will do:

• Experimental quantum optics with single-photon emitters at cryogenic temperatures
• Optimize control of spin registers, including robust gates, stability, and scaling to larger registers.
• Integration of emitters with nanophotonic open Fabry-Perot cavities

What we look for:

• MSc (or equivalent) in physics/applied physics/quantum engineering or related fields
• Strong experimental skills; experience in optics/cryogenics/lasers/nanophotonics is a plus
• Motivation to work in an interdisciplinary, research-driven environment

We offer:

• A PhD project at the forefront of quantum photonics and quantum communication
• Access to state-of-the-art lab infrastructure and close supervision
• An international, collaborative research environment at Ulm University

If you are interested, please contact: alexander.kubanek@uni-ulm.de