University of Amsterdam
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PhD in Continuous Optical Clock at the University of Amsterdam University of Amsterdam in Netherlands
Degree Level
PhD
Field of study
Experimental Physics
Funding
Temporary PhD contract for 38 hours per week for 4 years total, with an initial 18-month contract and extension after satisfactory evaluation. Gross monthly salary is €3,204 to €4,051 (Scale P) based on full-time 38 hours/week, excluding 8% holiday allowance and 8.3% year-end allowance. A 30% ruling may apply to non-Dutch applicants.
Deadline
Sep 30, 2026
Country
Netherlands
University
University of Amsterdam

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About this position
PhD opportunity in Continuous Optical Clock at the University of Amsterdam, Faculty of Science, Institute of Physics, in the Ultracold Strontium Group led by Prof. Dr. Florian Schreck.
The project focuses on optical clocks, ultracold atoms, strontium, and AMO physics. You will help build a zero-deadtime, continuously operating optical clock using a continuous ultracold Sr source and multiple interrogation zones. The work includes integrating laser systems, optics, electronics, debugging, data taking, upgrades, data analysis, literature research, and article writing.
The position is embedded in a lively international research environment and connected to broader quantum technology activities, including quantum sensing, continuous Bose-Einstein condensation, optical time/frequency distribution, and related quantum technology collaborations.
Eligibility highlights: a recent master’s degree in experimental ultracold atom or trapped ion physics, strong teamwork, initiative, good time management, and good oral/written English. The role also includes teaching support for bachelor and master students and participation in group activities and outreach.
Funding and contract: temporary PhD contract for 4 years total (initial 18 months, then extension after satisfactory evaluation), 38 hours/week. Salary ranges from €3,204 to €4,051 gross per month (Scale P), excluding holiday allowance and year-end bonus. A 30% ruling may apply to non-Dutch applicants.
Application: apply online via the vacancy page and send materials by email to Florian Schreck. Required documents include a detailed CV, motivation letter, publication list, and names/emails of two referees. The vacancy closes on 2026-09-30.
Funding details
Temporary PhD contract for 38 hours per week for 4 years total, with an initial 18-month contract and extension after satisfactory evaluation. Gross monthly salary is €3,204 to €4,051 (Scale P) based on full-time 38 hours/week, excluding 8% holiday allowance and 8.3% year-end allowance. A 30% ruling may apply to non-Dutch applicants.
What's required
A recent master’s degree in experimental ultracold atom physics or trapped ion physics is required. Applicants should have strong team-working skills, initiative, good time management, and good oral and written English communication skills. The role expects willingness to work on complex experimental systems, data analysis, literature research, article writing, and teaching support for bachelor and master students.
How to apply
Apply online via the red button on the vacancy page. Also send the application by email to Florian Schreck and include a CV, motivation letter, publication list, and names and email addresses of two referees.
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