Postdoc on Quantum Simulation & Computing with Single Sr Atoms in Optical Tweezers

Are you eager to perform quantum simulations in a lively, international research group? Do you enjoy creating complex machines that have never existed before? Do you want to explore physics that nobody else has seen? If yes, then you might want to join the Ultracold Strontium Group at the Institute of Physics as a postdoc on our Sr tweezer experiment.

Working at the UvA Join us! Join our strontium tweezer quantum simulation/computing team! We pioneer methods to manipulate individual strontium atoms in optical tweezers [Phys. Rev. Research 4 , 023245 (2022), SciPost Phys. 19 , 118 (2025), arXiv:2512.14611 (2025)] and make use of those methods for quantum simulations [arXiv:2509.03514 (2025)]. We have a range of interesting research avenues ahead of us, such as exploring 3D spin-systems, dynamics of spin excitations on fractals, or using qudits. We are embedded in the QDNL KAT-1 Neutral Atom Quantum Computing team, strongly collaborating with the Quantum Computing team at TU/e.

• A good salary Your salary will be determined on the basis of your experience and seniority, in accordance with the Labour agreement. Your grading and therefore the amounts mentioned are based on full employment of 38 hours per week.
• 232 vacation hours We also offer parental leave, partner leave and social engagement leave. Through the Employment Conditions Menu Card, there are opportunities for even more vacation hours.
• Financial arrangements On top of your salary, you receive holiday allowance (8%) and a year-end bonus (8.3%). You build up a good pension with ABP. And in addition, we offer many other allowances and schemes.
• Career development and room for growth The UvA encourages you to continue to professionalise through training courses and open UvA lectures.
• Family matters Relocating to the Netherlands with your family? Find out about daycare, schooling, health insurance or employment options and support for your partner or spouse. Including the IDCN-network which provides support for your spouse through various training sessions, social activities, and networking events.

All About This Vacancy This is what you will do You will further develop our quantum simulation/computing approach. This includes experimental work with the tweezer machine, such as debugging and data taking, designing and constructing upgrades to the machines, data analysis, literature research, article writing, and contributing to the acquisition of funding. We ask you to become independent by taking initiative and developing your own creative ideas. You will also take an active role in group activities, such as master and PhD student education, presentation of your work, maintenance of lab organization, and societal and stakeholder outreach.

What We Ask Of You We are looking for someone who is excited about pushing novel types of ultracold atom experiments to new realms of AMO physics. You also should have:

• a recent PhD in experimental ultracold atom or trapped ion physics.
• great team working skills.
• initiative and good management skills.
• good communication skills in oral and written English.

This Is What We Offer You We offer a temporary employment contract for 38 hours per week for a period of 24 months, with a probationary period of 12 months. The preferred starting date is Autumn 2026, but earlier or later can be discussed. The gross monthly salary, based on 38 hours per week and dependent on relevant experience, ranges between € 3,546 to € 5,538 (Scale 10). This does not include 8% holiday allowance and 8,3% year-end allowance. The UFO profile Researcher is applicable. A favourable tax agreement, the ‘30% ruling’, may apply to non-Dutch applicants. The Collective Labour Agreement of Universities of the Netherlands is applicable.

Your place at the UvA You will work in this team The Faculty of Science has a student body of around 8,000, as well as 1,800 members of staff working in education, research or support services. Researchers and students at the Faculty of Science are fascinated by every aspect of how the world works, be it elementary particles, the birth of the universe or the functioning of the brain.

The Institute of Physics (IoP) of the Faculty of Science combines the Van der Waals-Zeeman Institute (WZI), the Institute of Theoretical Physics (ITFA) and the Institute for High Energy Physics (IHEF) and is one of the large research institutes of the Faculty of Science at the University of Amsterdam. The Van der Waals - Zeeman Institute for Experimental Physics (IoP-WZI) is part of the IoP and home to three research clusters: Quantum Gases & Quantum Information (QG&QI), Quantum Materials (QMat), and Soft Matter (SM).

You will work in the Strontium Quantum Gases Group, part of the QG&QI cluster and headed by Prof. Dr. Florian Schreck. We exploit ultracold Sr gases for quantum sensing, the study of many-body physics and for quantum computing. We explore new ways to build sensors, such as superradiant clocks and collaborate with industry, startups and users to bring quantum technology to the market. This project is embedded in the Quantum Delta NL Ultracold Atom Quantum Sensing Testbed, which will allow you to contribute to many interesting projects related to clocks, such as creating a European optical time and frequency distribution network, or building an industry prototype of an optical clock. Our group is furthermore exploring continuously operating atom interferometers, quantum simulation experiments using Rb-Sr mixtures, single Sr atoms in optical tweezer arrays and improved ways to build optics. Your project will profit from synergy with all these activities.

About The Faculty Of Science Researchers and students at the Faculty of Science are fascinated by every aspect of how the world works, whether it concerns elementary particles, the birth of the universe, or how the brain functions. The Faculty has a student population of approximately 8,000 students, as well as 1,800 staff members working in education, research, or support services.

Important to know Your application & contact If you feel the profile fits you, and you are interested in the job, we look forward to receiving your application. You can apply online via the button. We accept applications until the position has been filled.

Do you have any questions or do you require additional information? Please contact:

• Prof. Dr. Florian Schreck, schreck@uva.nl

Applications should include the following information (all files besides your cv should be submitted in one single pdf file):

• a detailed CV including the months (not just years) when referring to your education and work experience;
• a letter of motivation;
• a list of publications;
• the names and email addresses of two references who can provide letters of recommendation.

A knowledge security check can be part of the selection procedure (for details: national knowledge security guidelines).

Acquisition in response to this vacancy is not appreciated. Diversity, Equity & Inclusion As an employer, the UvA maintains an equal opportunities policy. We value diversity and are fully committed to being a place where everyone feels at home. We nurture inquisitive minds and perseverance and allow room for persistent questioning. With us, curiosity and creativity are the prevailing culture.

Studies show that women and members of underrepresented groups only apply for jobs if they meet 100% of the qualifications. Do you meet the educational requirements but not yet all of the requested experience? The UvA encourages you to apply anyway.