PhD position on Quantum Simulation with RbSr Ground-state Molecules

PhD position on Quantum Simulation with RbSr Ground-state Molecules

Working at the UvA

Join us!

When atoms are cooled to nanokelvin temperatures, their quantum-mechanical wave properties become evident. At densities where their de-Broglie wavelengths overlap, a quantum-degenerate gas is formed, either a Bose-Einstein condensate (for bosons) or a degenerate Fermi gas (for fermions). At the University of Amsterdam we are exploring a unique mixture of atomic species, namely Rb and Sr. The long-standing goal is to bring these species together and form RbSr molecules. A key milestone in this regard was the discovery and characterization of so-called Feshbach resonances in this mixture [Nat.Phys 14, 881 (2018)]. Since then, we have developed several key insights and new tools, see Rev.Sci.Instr. 94, 073202 (2023) and the recent PhD thesis of Premjith Thekkeppatt

Working at the UvA

Join us!

When atoms are cooled to nanokelvin temperatures, their quantum-mechanical wave properties become evident. At densities where their de-Broglie wavelengths overlap, a quantum-degenerate gas is formed, either a Bose-Einstein condensate (for bosons) or a degenerate Fermi gas (for fermions). At the University of Amsterdam we are exploring a unique mixture of atomic species, namely Rb and Sr. The long-standing goal is to bring these species together and form RbSr molecules. A key milestone in this regard was the discovery and characterization of so-called Feshbach resonances in this mixture [Nat.Phys 14, 881 (2018)]. Since then, we have developed several key insights and new tools, see Rev.Sci.Instr. 94, 073202 (2023) and the recent PhD thesis of Premjith Thekkeppatt

All about this vacancy

What you will do

Your goals will be to explore the opportunities that we have identified in the RbSr mixture. We will employ the recently demonstrated stabilization of the 87Rb-87Sr (Bose-Fermi) resonantly interacting mixture under confinement in an optical lattice. We will study the effects of further reduction in dimensionality by additional optical trapping in the form of optical lattices and/or optical tweezers. We have developed a high-resolution multi-wavelength objective that will be used to achieve better sensitivity for both species. We aim to create weakly bound RbSr molecules through the use of confinement-induced resonance. From there, we will be able to create ground-state molecules by optical adiabatic state-transfer techniques. Another avenue we will explore is the physics of strongly interacting Bose-Fermi mixtures in our system.
This project is embedded in the ultracold atom part of the  QDNL programme, and will allow you to learn about many interesting projects related to your PhD, in particular those of the strontium BEC group and of the hybrid atom-ion group. Your PhD project will profit from synergy with all these activities.

What we ask of you

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

  • a recent master in experimental ultracold atom or trapped ion physics.
  • great team working skills.
  • initiative and good time management skills.
  • good communication skills in oral and written English.
  • some experience with data analysis;
  • strong letter of recommendation from master project supervisor;
  • Beneficial skill: programming, including some languages of the following list: C, C++, Python, Matlab, Mathematica. Programming skills will be used to build experiment control systems, data analysis systems, and to perform numerical simulations of experiments.

What we offer you

We offer a temporary contract for 38 hours per week for the duration of 4 years (the initial contract will be for a period of 18 months and after satisfactory evaluation it will be extended for a total duration of 4 years). The gross monthly salary, based on 38 hours per week ranges between € 3,059 to € 3,881 (Scale P). This does not include 8% holiday allowance and 8,3% year-end allowance. The UFO profile PhD candidate is applicable. A favourable tax agreement, the ‘30% ruling’, may apply to non-Dutch applicants.

The preferred starting date is to be discussed and lies preferably between April to September 2026. This employment should lead to a dissertation (PhD thesis). We will draft an educational plan that includes attendance of courses and (international) meetings. We also expect you to assist in teaching undergraduates and master students.

All about this vacancy

What you will do

Your goals will be to explore the opportunities that we have identified in the RbSr mixture. We will employ the recently demonstrated stabilization of the 87Rb-87Sr (Bose-Fermi) resonantly interacting mixture under confinement in an optical lattice. We will study the effects of further reduction in dimensionality by additional optical trapping in the form of optical lattices and/or optical tweezers. We have developed a high-resolution multi-wavelength objective that will be used to achieve better sensitivity for both species. We aim to create weakly bound RbSr molecules through the use of confinement-induced resonance. From there, we will be able to create ground-state molecules by optical adiabatic state-transfer techniques. Another avenue we will explore is the physics of strongly interacting Bose-Fermi mixtures in our system.
This project is embedded in the ultracold atom part of the  QDNL programme, and will allow you to learn about many interesting projects related to your PhD, in particular those of the strontium BEC group and of the hybrid atom-ion group. Your PhD project will profit from synergy with all these activities.

What we ask of you

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

  • a recent master in experimental ultracold atom or trapped ion physics.
  • great team working skills.
  • initiative and good time management skills.
  • good communication skills in oral and written English.
  • some experience with data analysis;
  • strong letter of recommendation from master project supervisor;
  • Beneficial skill: programming, including some languages of the following list: C, C++, Python, Matlab, Mathematica. Programming skills will be used to build experiment control systems, data analysis systems, and to perform numerical simulations of experiments.

What we offer you

We offer a temporary contract for 38 hours per week for the duration of 4 years (the initial contract will be for a period of 18 months and after satisfactory evaluation it will be extended for a total duration of 4 years). The gross monthly salary, based on 38 hours per week ranges between € 3,059 to € 3,881 (Scale P). This does not include 8% holiday allowance and 8,3% year-end allowance. The UFO profile PhD candidate is applicable. A favourable tax agreement, the ‘30% ruling’, may apply to non-Dutch applicants.

The preferred starting date is to be discussed and lies preferably between April to September 2026. This employment should lead to a dissertation (PhD thesis). We will draft an educational plan that includes attendance of courses and (international) meetings. We also expect you to assist in teaching undergraduates and master students.

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 join the Strontium Quantum Gases Group of the QG&QI cluster. We are using ultracold atoms and trapped ions as a means to investigate and utilize fascinating phenomena in quantum physics. We are  particularly interested in developing novel platforms for quantum information science, quantum many-body physics, quantum sensing, and optical atomic clocks.

Want to know more about our organisation? Read more about working at the University of Amsterdam.

More about the UvA

The University of Amsterdam is ambitious, creative and committed. An inspiration to students since 1632, a vanguard player in international science and a partner in innovation.
The University of Amsterdam is the largest university in the Netherlands, with the broadest range of courses on offer. An intellectual hub with 42,000 students, 6,000 staff and 3,000 PhD students. Connected by a culture of curiosity.

Your place at the UvA

This is where you will be working

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 join the Strontium Quantum Gases Group of the QG&QI cluster. We are using ultracold atoms and trapped ions as a means to investigate and utilize fascinating phenomena in quantum physics. We are  particularly interested in developing novel platforms for quantum information science, quantum many-body physics, quantum sensing, and optical atomic clocks.

Want to know more about our organisation? Read more about working at the University of Amsterdam.

More about the UvA

The University of Amsterdam is ambitious, creative and committed. An inspiration to students since 1632, a vanguard player in international science and a partner in innovation.
The University of Amsterdam is the largest university in the Netherlands, with the broadest range of courses on offer. An intellectual hub with 42,000 students, 6,000 staff and 3,000 PhD students. Connected by a culture of curiosity.

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 below.

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

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

  • a detailed CV including the start and finish 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).

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.

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 below.

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

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

  • a detailed CV including the start and finish 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).

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.

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