Strontium quantum gas group


CombiLogo UvA NWO ERC QuSoft


Open positions

We have open positions for master students, four PhD students, postdocs and a research assistant on our RbSr project, the Sr quantum gas microscope project, the atom laser project, and within the European Quantum Flagship project iqClock.

We are especially looking for female postdoc applicants, who would have a good chance of obtaining a prestigious Ada Lovelace postdoctoral fellowship with the Quantum Software Consortium, of which we are member. This position is especially well suited for experimental work on our Sr quantum gas microscope.

A master degree or equivalent (3-4 study years + research prohject) is required to start a PhD with us. In case you do not quite fullfill these requirements, but have studied physics for at least three years, you might be interested in pursuing a master degree at UvA. Our institute financially supports a few non-Dutch students each year to study here. Please contact Florian Schreck for information.


Strontium quantum gas projects




Ultracold quantum gases allow us to explore quantum mechanics and are at the core of extremely sensitive measurement devices. To date, thirteen elements have been cooled to quantum degeneracy. Each of them has different properties that make them useful for different explorations and applications. We are studying quantum gases of strontium, an alkaline-earth element that provides us with long-lived optically excited states, ultra-narrow optical transitions and a large nuclear spin. These properties make Sr uniquely suited for exciting research projects, as you’ll see when following the links below.


SrPAL: perpetual atom laser

atom laser illustration


RbSr: RbSr ground-state molecules

RbSr illustration


SrMic: Sr quantum gas microscope

SrMic icon


iqClock: integrated quantum clock

iqClock icon




Congratulations to Sergei Piatchenkov for his PhD!

Sergei obtained a PhD for his thesis A versatile ultracold strontium apparatus: from construction to new tools for quantum simulation.

Sergei Piatchenkov PhD screen shot

Sergei enthusiastically defending his thesis before the doctorate committee.


Congratulations to Oleksiy Onishchenko for his PhD!

Oleksiy obtained a PhD for his thesis Ultracold atomic gases of strontium: production and narrow-line spectroscopy (high-res version).

Oleksiy Onishchenko PhD Photo

Happy Oleksiy with his friends, parents, and doctorate committee.


Congratulations to Shayne Bennetts for his PhD!

Shayne obtained a PhD for his thesis 1000 times closer to a continuous atom laser: Steady-state strontium with unity phase-space density (high-res version).

Shayne Bennetts PhD Photo

Elegant Shayne with his paranymphs and doctorate committee.


Innovative Training Network MoSaiQC funded by European Commission

The European Innovative Training Network MoSaiQC has 15 open PhD positions for work on optical clocks.

Press release: EC funds Innovative Training Network for quantum clocks.


Welcome to Premjith Thekkeppat, Francesca Famà and Sheng Zhou!

Prem will do his PhD on the RbSr project and Francesca and Sheng will do their PhDs on the iqClock project.


Congratulations to Chun-Chia Chen for his PhD!

Chun-Chia obtained a PhD for his thesis An atomic marble run to unity phase-space density.

Chun-Chia PhD Photo

Proud and happy Chun-Chia with his paranymphs and members of the doctorate committee.


RbSr project funded by NWO Programme

We coordinate the NWO programme Atomic Quantum Simulators 2.0 - Taming Long-range Interactions, which will create and study long-range interacting many-body systems based on RbSr ground-state molecules or ytterbium ions immersed in ultracold lithium gas. Partners in this programme are Rene Gerritsma, Gerrit Groenenboom, Servaas Kokkelmans and Cristiane Morais Smith.


iqClock consortium funded by European Union

We coordinate the Quantum Flagship consortium iqClock, which will build an integrated optical lattice clock and develop superradiant clocks. On this occasion Folia produced a viedo explaining optical clocks, presented a viedo lab tour, and De Volkskrant printed an interview.


Congratulations to Alessio Ciamei for his PhD!

Alessio obtained the distinction cum laude for his PhD thesis Taming ultracold RbSr and Sr2.


Observation of Feshbach resonances between alkali and closed-shell atoms

Nature Physics 14, 881 (2018), open-access, view-only version: SharedIt, arXiv:1710.03093.

Nature Physics news & views: Quo vadis now, cold molecules?

Press release: Quantum LEGO: building ultracold molecules.


Steady-State Magneto-Optical Trap with 100-Fold Improved Phase-Space Density

Phys. Rev. Lett. 119, 223202 (2017), arXiv:1707.05370.

Press release: Towards a continuous atom laser


Lecturer in the spotlight

UvA News: Lecturer in the spotlight: Florian Schreck


Editor's Suggestion

Our article Efficient production of long-lived ultracold Sr2 molecules was highlighted by Phys. Rev. A as "Editor's Suggestion".


NWO Zwaartekracht grant for Quantum Software Consortium

As part of QuSoft, we are members of the Quantum Software Consortium, which received an NWO Zwaartekracht grant.


Congratulations to Alex Bayerle for his PhD!

Alex obtained his PhD for the thesis Ultracold strontium and rubidium: mixtures, quantum gases and molecules.


NWO Vici grant

Florian Schreck received an NWO Vici grant to construct a perpetual atom laser and to use that laser for the creation of an active clock laser.


Marie Curie grant

Georgios Siviloglou received a Marie Curie grant of the European Comission (SYMULGAS, No. 661171) to implement artificial gauge fields with strontium.


NWO Veni grant

Benjamin Pasquiou received an NWO Veni grant to demonstrate atom interferometry using a perpetual atom laser.


Inauguration of our labs

UvA rector magnificus prof. Dymph van den Boom visited us and inaugurated our new labs.


Sr BEC at the University of Amsterdam

Sr BEC at UvA

Our machine is working again: we have created the first Sr BECs at UvA!


Physics World Top Ten Breakthroughs 2013

Our work on laser cooling to quantum degeneracy has been selected as one of the Top Ten Breakthroughs in Physics 2013 by Physics World, the journal of the British Institute of Physics. See also IQOQI press release and UvA press release.


ERC consolidator grant

Florian Schreck received an ERC consolidator grant.


IQOQI dissertation prize for Simon Stellmer

Simon Stellmer has received an IQOQI dissertation prize for his work in our group.


Moving to Amsterdam!

Our group has arrived at the University of Amsterdam. And even our super fragile glass vacuum cell survived the transport despite -6°C outside temperature in Innsbruck and a huge storm in Amsterdam!



Former research projects


SrBEC: first strontium BECs




The project is hosted by the University of Amsterdam at the Institute of Physics. Funding is provided by an ERC consolidator grant (QuantStro, No. 615117), an NWO Vici grant (No. 680-47-619), an NWO Zwaartekracht grant (Quantum Software Consortium), an NWO Veni grant (No. 680-47-438), and a Marie Curie grant of the European Comission (SYMULGAS, No. 661171). Formerly the project was hosted by the Austrian Academy of Sciences at the Institute for Quantum Optics and Quantum Information. Funding was provided by a START prize of the FWF and the BMWF and the iSense FET-Open grant of the European Commission.


last change: 09.07.2017 by FS