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Florian Schreck

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PhD on Continuous Optical Clock University of Amsterdam in Netherlands

Degree Level

PhD

Field of study

Experimental Physics

Funding

Temporary PhD contract for 4 years, with gross monthly salary from €3,204 to €4,051 (Scale P), plus 8% holiday allowance and 8.3% year-end allowance.

Deadline

Jan 31, 2027

Country flag

Country

Netherlands

University

University of Amsterdam

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Keywords

Experimental Physics
Atomic Physics
Metrology
Many-body Systems
Bose-einstein Condensates
Quantum Sensing

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The University of Amsterdam is seeking a postdoctoral researcher to join the Strontium Quantum Gases Group in the Institute of Physics. Led by Prof. Florian Schreck, the group is part of the Quantum Gases & Quantum Information cluster within the Van der Waals–Zeeman Institute for Experimental Physics. The project focuses on developing continuous optical clocks based on ultracold strontium atoms. Optical clocks already enable extremely precise measurements of time and gravitational effects; this ...

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This postdoc in the Strontium Quantum Gases Group at the Institute of Physics, University of Amsterdam focuses on advancing continuous optical clocks toward superradiant and zero-deadtime operation. You will join an international research environment working with ultracold strontium gases and precision measurement techniques. The project builds on the group’s previous work on continuous Bose-Einstein condensation and aims to remove the dead time that limits conventional pulsed clock operation. I...

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The University of Amsterdam is recruiting a PhD candidate to help develop a continuously operating optical atomic clock in the Ultracold Strontium Group at the Institute of Physics. The project addresses a fundamental limitation of conventional optical clocks, which operate in pulses and require many hours of averaging to reach their ultimate precision. The candidate will work on a zero-deadtime clock that continuously interrogates ultracold strontium atoms. The planned system will use a continu...

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This postdoctoral project sits at the intersection of experimental atomic physics, precision optics, and quantum technology. The work is embedded in the University of Amsterdam’s Institute of Physics and the Strontium Quantum Gases Group, led by Prof. Dr. Florian Schreck, and is carried out together with the group’s spin-off OpticsFoundry B.V. and in collaboration with the Nonlinear Nanophotonics group at the University of Twente. The project focuses on developing technology to robotically manuf...

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About this position

The Ultracold Strontium Group at the University of Amsterdam’s Institute of Physics is recruiting a PhD researcher to help build and operate a zero-deadtime optical clock. The project focuses on overcoming the pulsed operation of current optical clocks by enabling continuous interrogation of ultracold strontium atoms, with the goal of reaching ultimate precision in minutes rather than hours.

You will work on a highly experimental project that combines laser systems, optics, electronics, debugging, data taking, upgrades to complex machines, data analysis, literature research, and article writing. The setup uses a continuous ultracold Sr source feeding four clock interrogation zones within a single vacuum chamber, so that clock interrogation can continue while other zones are reloaded. This is an ambitious machine-building project aimed at creating a continuously operating optical clock based on technology developed by the group for continuous Bose-Einstein condensation.

The position sits within the Strontium Quantum Gases Group, part of the Quantum Gases & Quantum Information cluster at the Van der Waals-Zeeman Institute, itself part of the Institute of Physics in the Faculty of Science. The group is led by Prof. Dr. Florian Schreck and works on ultracold Sr gases for quantum sensing, many-body physics, and quantum computing. The wider research environment includes related work on continuous superradiant lasers, optical time and frequency distribution, atom interferometers, quantum simulation with Rb-Sr mixtures, single Sr atoms in optical tweezer arrays, and improved optical technology, offering a broad and lively AMO physics setting.

The project is also embedded in the Quantum Delta NL Ultracold Atom Quantum Sensing Testbed, connecting the work to a broader network of quantum-sensing and optical-clock developments.

Funding details

Temporary PhD contract for 4 years, with gross monthly salary from €3,204 to €4,051 (Scale P), plus 8% holiday allowance and 8.3% year-end allowance.

What's required

A recent master’s degree in experimental ultracold atom or trapped ion physics is required. Applicants should have great teamwork skills, initiative, good time management, and good oral and written English communication skills.

How to apply

Apply online via the application button on the advert and send your materials by email to Florian Schreck. Submit a detailed CV (with months for education and work experience), a motivation letter, a publication list, and the names and email addresses of two referees in one single PDF file for all documents except the CV.

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Professors

Prof. Dr. at University of Amsterdam

University Name
Country flag

Netherlands

Research Interests

Electronics

Quantum Sensing

Physics

Atomic Physics

Experimental Physics