Doctoral Candidate in Physics (Optical Clocks) | Doktorandin / Doktorand (m/w/d) Physik (25-226-4B)

Physikalisch-Technische Bundesanstalt

Braunschweig, Niedersachsen, Deutschland
Published Nov 25, 2025
Part-time
Fixed-term

Job Summary

This doctoral position at the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig focuses on cutting-edge research in precision metrology, specifically advancing optical clock technology using the 173Yb+ isotope. The candidate will be responsible for automating clock operations, investigating stability improvements through multi-ion interrogation and entanglement, and developing protocols for using hyperfine transitions. Key tasks include determining systematic frequency shifts, expanding Python-based experimental control systems using ARTIQ, and enhancing existing laser setups. The role involves performing comparison measurements with other optical clocks to verify uncertainties and search for physics beyond the Standard Model. This is an attractive opportunity for a highly committed experimental physicist to focus entirely on their PhD research within an internationally renowned team and contribute to world-leading measurement standards.

Required Skills

Education

Master’s degree or German Diplom in Physics with an overall grade of 'very good' or equivalent

Experience

  • Professional experience in experimental work and strong experimental skills
  • Knowledge and experience in Atomic Physics, Atom-Light Interaction, and Lasers
  • Knowledge and experience in automated data acquisition and programming

Languages

German (Basic)English (Fluent)

Additional

  • Willingness to travel for work both domestically and internationally; Position is part-time (33.15 hours/week) and fixed-term for 3 years.