We will support EFEQT students to apply for financial support for European international internships (via Erasmus+). The minimum duration of the internship is 2 months and the application must be submitted at least 2 months before the planned internship date (earlier the better)

When you find an interesting project please write to the corresponding contact person immediately for more information. If they agree to host you please let us know via info@efeqt.eu, so that we can guide you through the next steps.

22 Internship projects currently available (click below for more information)



Atomic-scale physics of quantum-photon sources (Experimental)
Strasbourg, France


Location: IPCMS, University of Strasbourg, France
Contact person: Dr. Guillaume Schull
Group website: STM Group
Description: The objective of this internship is to characterize the emission statistics of single chromophore molecules acting as quantum-photon sources (SPSs). SPSs are systems capable of emitting photons one by one and are of major importance for quantum-information science and applications. Many fundamental questions related to the impact of their environment on their quantum properties remain to be explored. To this end, a novel nanophotonic approach based on a scanning probe microscope will be used that provides simultaneous spatial, spectral and temporal resolution. This project fits into the larger framework of the European ERC project APOGEE within the STM team of the IPCMS and may be pursue by a PhD project

Prerequisite knowledge: The candidate should have knowledge’s in light-matter interactions and/or condensed mater physics.
Internship period and planned duration: 4-6 months

Quantum simulation of disordered spin systems (Theory)
Heidelberg, Germany

Location:University of Heidelberg, Germany
Contact person Dr. Martin Gärttner
Group website: Many-Body Quantum Dynamics
Description: Disordered spin systems fail to relax to thermal equilibrium state due to emergent local conserved quantities. Rydberg quantum simulators allow to realize these systems experimentally. The goal of this project is to design and numerically benchmark experimental protocols that reveal smoking gun signatures of localization and allow us to study the transition between localized and delocalized regimes.

Prerequisite knowledge: Solid knowledge of quantum mechanics, Python or Julia programming skills, Optional: Basic knowledge of quantum many-body physics, quantum information theory
Internship period and planned duration: 3 months between February and October 2022

Sisyphus cooling of Yb+ (Experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Rene Gerritsma
Group website: Hybrid atom-ion Quantum Systems
Description: Hybrid experiments combining trapped ions with ultracold atoms offer intriguing prospects for buffer gas cooling, quantum simulation of condensed matter/many-body systems as well as for state-to-state quantum chemistry. Combining both atoms and ions is not a trivial task, yet in our experimental system consisting of an Yb-ion in a bath of lithium atoms we have been able to reach the regime where quantum effects emerge. In this project, you will work on the implementation of an additional cooling step for the Yb-ion, which will cool it closer to the ions’ groundstate. Then, using resolved sideband spectroscopy on the S1/2 ↔ D5/2 quadrupole transition you will characterize the newly achieved temperatures of the ion and answer the question, how much colder it is. This new feature will help to create a cold atom-ion system close to the s-wave regime.

Prerequisite knowledge: Atomic physics, affinity with experiments and working with lasers
Internship period and planned duration:Winter/Spring 2022, 4-6 months

Modelling of single molecule qudits for quantum algorithms (Theory)
Strasbourg, France


Location: IPCMS, University of Strasbourg, France
Contact person: Prof. Paul-Antoine Hervieux, Prof. Mario Ruben
Group website: Theoretical quantum dynamics of nano objects
Description: This project forms part of a collaboration with chemists and experimentalists in Karlsruhe, with the aim of realising quantum computing applications using single molecule magnets. Specifically, we focus on the theoretical modelling of higher-dimensional qudits that arise from the nuclear spins of rare-earth atoms embedded in these molecules. The objective of this internship is to make the link between the pulse-level Hamiltonian and the matrix formalism of qudit gates, in order to assist with the experimental implementation of quantum algorithms.

Prerequisite knowledge: Good knowledge of Python and/or Mathematica and/or Matlab, good knowledge of linear algebra, quantum mechanics (ideally, but not strictly required, density matrix formalism and Louiville equations)
Internship period and planned duration:March to August for 6 month internships, anywhere in between for shorter internships

Optimized quantum circuit simulators with matrix product states (Theory/Quantum software)
Strasbourg, France

Location: ISIS, University of Strasbourg, France
Contact person: Dr. Johannes Schachenmayer
Group website: Quantum Matter Theory
Description: Matrix Product States (MPS) are a numerical technique that allow to efficiently simulate dynamics of quantum systems of 100s of qubits in scenarios where quantum entanglement is limited (e.g. by noise). So far, MPS techniques are optimized for simulating Hamiltonian dynamics, i.e. for simulating physics. Goal of this project is to test and compare MPS methods for simulating quantum circuits. The intern should produce an MPS circuit simulation code that takes quantum circuits written in a common quantum language (e.g. QISKIT) as input.

Prerequisite knowledge: Strong knowledge in code development (ideally: Julia), Basics of open quantum systems
Internship period and planned duration:5 months (flexible)


Machine learning interface for the Strasbourg quantum simulator (quantum software)
Strasbourg, France

Location: ISIS, University of Strasbourg, France
Contact person: Prof. Shannon Whitlock
Group website: Exotic Quantum Matter
Description: The objective of this internship is to start to integrate a new control program for our state-of-the art quantum simulator based on Rydberg atoms which will enable continuous feedback control of experimental parameters. The student will (i) develop an overall framework for experimental control based on the labscript suite (https://labscriptsuite.org/) and interface it with python based machine learning and quantum control toolboxes, (ii) develop modules for controlling key components such as the acousto-optical modulators and microwave fields for manipulating qubits, and (iii) demonstrate coherent control over atomic qubits using automatically optimized control waveforms via a high-level (remote) interface.

Prerequisite knowledge: Python programming. Some knowledge of experimental control and automation systems would be beneficial.
Internship period and planned duration: 4-6 months between February and October 2022

Tailoring Ising interaction matrices for portfolio optimization on atomic quantum platforms (Industry)
Paris, France


Location: QuantFi, Paris, France
Contact person: Jeremy Nusa
Group website: quantfi.com
Description: Recently developed atomic quantum computation/simulation platforms allow to naturally realize Ising Hamiltonians using Rydberg interactions. Ising Hamiltonians with arbitrarily tunable couplings between qubits would allow to convert portfolio optimization problems into ground state preparation (e.g. quantum annealing) problems. Due to their physical nature, Rydberg interactions naturally decay as a function of distance and thus the coupling matrices depend on the spatial atomic configuration. The goal of this project is to find spatial atomic configurations that can best approximate Ising matrices for portfolio optimization in finance.

Prerequisite knowledge: Linear algebra. Familiarity with a programming language. Ideally: Familiarity with quantum annealing/adiabatic quantum computation
Internship period and planned duration: Approximately 6 months (starting April 2022)

Spin cleaning of Li atomic cloud (Experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Rene Gerritsma
Group website: Hybrid atom-ion Quantum Systems
Description: Hybrid experiments combining trapped ions with ultracold atoms offer intriguing prospects for buffer gas cooling, quantum simulation of condensed matter/many-body systems as well as for state-to-state quantum chemistry. Combining both atoms and ions is not a trivial task, yet in our experimental system consisting of an Yb-ion in a bath of lithium atoms we have been able to reach the regime where quantum effects emerge. For tuning interactions in our Yb+-Li setup, it is important to have spin polarized samples of Lithium in one of the three lowest Zeeman spin states. In this project you will work on creating these samples by implementing purification steps after the evaporation stage where we end up with a Li mixture consisting of the two lowest Zeeman spin states. You will align, program, and characterize resonant laser pulses which remove unwanted spin states. To ensure the frequency of these pulses you will build-up a modulation transfer spectroscopy setup to lock the laser. Furthermore, you will work with RF pulses in order to transfer population between the different spin states.

Prerequisite knowledge: Atomic physics, affinity with experiments and working with lasers
Internship period and planned duration:Winter/Spring 2022, 4-6 months

Simulation and characterization of acoustic isolation in cavity QED systems. [a machine for a superradiant laser with a thermal beam] (experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Florian Schreck and Dr. Francesca Famà
Group website: iqClock.eu
Lab tour video,Quantum Science Seminar talk describing project
Description: Simulation of the acoustic isolation stack of the machine in the iqClock lab in Amsterdam. Direct measurement on the machine to validate the simulations. Design of a lock for the superradiant cavity inside the machine that optimally supresses environmental noise.

Prerequisite knowledge: Enthusiasm and curiosity about research. Previous experience with COMSOL/Solidworks/Matlab is welcome.
Internship period and planned duration:Flexible start (from April 2022), duration 3 – 6 months

Quantum optimization (quantum software)
Strasbourg, France


Location: ICUBE, Strasbourg, France
Contact person: Prof. Pierre Collet
Group website: CSTB group
Description: Optimization is a transdisciplinary research topic, with applications in all possible domains. Most real-world optimisation problems are “hard”, meaning that global optimum for such problems cannot be found in practical time using conventional computers or deterministic algorithms. One way to tackle these problems is to take advantage of the emergence that complex systems exhibit, as a side-effect of the interaction of many different entities. This is exactly what entanglement is about. The object of this internship is therefore to study how the emergent properties of entanglement can be used to find good solutions to compute intensive hard optimization problems.

Prerequisite knowledge: Good knowledge of algorithmics, Python or C++ programming, a good understanding of the principles of emergence in complex systems.
Internship period and planned duration: March to August for 6 months internships, May to July for 2 months internships.

Quantum simulation of spin transport with Rydberg atoms (experimental)
Heidelberg, Germany


Location:University of Heidelberg, Germany
Contact person Prof. Matthias Weidemüller
Group website: Quantum Dynamics group
Description: A key feature for experiments simulating quantum spin systems is the tunability of the nature of the interaction between the spins. We use laser-cooled Rydberg atoms to implement such a tunable spin system by periodic application of specific sequences of short microwave pulses. This allows us to engineer interaction Hamiltonians with different symmetries in order to investigate how spin transport is affected by these symmetries. The goal of this project is to implement the protocol for generating the corresponding pulses and electric fields needed to study spin transport.

Prerequisite knowledge: Knowledge of quantum mechanics, basic knowledge of programming and electronics, experience with cold-atom experiments
Internship period and planned duration: 3 months between February and October 2022

Single-atom fluorescence detection for quantum simulation (experimental)
Paris, France


Location: ENS, Paris, France
Contact person: Prof. Jakob Reichel
Group website: Atom Chips
Description: The subject of this internship is to set up and test a new, robust and sensitive scheme for detecting the state of individual qubit atoms by background-free fluorescence detection. The core idea is that excitation and fluorescence emission occur at different wavelengths so they can be easily separated and the detection is not polluted by scattered excitation light. During this internship the student will be part of a small and highly motivated team in an inspiring international research environment and will have the opportunity to gain experience in optics, lasers, cavities, and cold atom physics.

Prerequisite knowledge: Quantum physics
Internship period and planned duration: 4-6 months (flexible)

HighFinesse R&D: Wavelength & Frequency Noise of narrow linewidth lasers (industry)
Tübingen, Germany


Location:HighFinesse, Tübingen, Germany
Contact person Dr. Florian Karlewski
Group website: HighFinesse
Description: Internship in the R&D department of HighFinesse with insights into the development of optical measurement instruments for wavelength or frequency noise determination of ultranarrow lasers. Tasks may include optical setups with low-noise lasers, atomic or molecular spectroscopy, measurement data analysis, electronics or small software projects.

Prerequisite knowledge: Experience with working in optical laboratories with lasers.
Internship period and planned duration: Minimum 3 months (starting from April 2022)

Greenhouse gas detection with optical fiber microcavities (experimental)
Paris, France


Location: ENS, Paris, France
Contact person: Prof. Jakob Reichel
Group website: Atom Chips
Description: The subject of this internship is to set up a trace gas detector based on a FFP (Fiber Fabry Perot) cavity, test it with different methods of cavity-enhanced spectroscopy. This will provide a proof of principle test of FFP trace gas detectors. Depending on progress, it will yield valuable information about the achievable detection limit and the properties of FFP gas detectors compared to existing technologies. During this internship the student will be part of a small and highly motivated team in an inspiring international research environment and will have the opportunity to gain experience in optics, lasers, cavities, spectroscopy and project management.

Prerequisite knowledge: Quantum physics
Internship period and planned duration: 4-6 months (flexible)

Emergent collective phenomena in quantum materials (theory)
Karlsruhe, Germany



Location: Karlsruhe Institute for Technology (KIT), Germany
Contact person: Prof. Markus Garst
Group website: Research Group Garst
Description: The interplay of different degrees of freedom of electrons in solids and the interactions between them lead to a rich phenomenology of collective effects. We develop methods for simulating such systems with goal of understanding collective phenomena and designing quantum materials. Please contact us to learn more about concrete internship projects.

Prerequisite knowledge: Solid knowledge of quantum mechanics, Programming skills and knowledge of condensed matter physics are advantageous
Internship period and planned duration: 3 months between February and October 2022

Spin Hamiltonians on a hyperbolic lattice (theory)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Dr. Arghavan Safavi-Naini
Group website: Hybrid atom-ion Quantum Systems
Description: Spin Hamiltonians are the cornerstone of the description of combinatorial optimization run on quantum computers, of magnetic materials or as fundamental objects in the studies of quantum integrability, chaos and transport. Putting such spin Hamiltonians on a so-called hyperbolic lattice, as suggested by recent experiments using superconducting resonators, would allow for exciting possibilities of studying exotic phases of matter on curved spacetimes with negative curvature (such as the anti-de Sitter spacetime used in the celebrated AdS/CFT correspondence) and recent progress in engineering spin Hamiltonians with arbitrary interactions in trapped ions offers an exciting opening to address these issues experimentally. The project consists of two parts: 1) Identifying through multidimensional optimization the relevant experimental setup to realize hyperbolic spin Hamiltonians. 2) Studying the physics of frustrated spin Hamiltonians on curved spacetimes using both analytical and numerical approaches, such as the path integral quantum Monte-Carlo simulations.

Prerequisite knowledge: quantum physics, affinity with quantum computing and simulation
Internship period and planned duration:Winter/Spring 2022, 4-6 months

Experimental quantum computing in QUA (industry)
Tel Aviv, Israel


Location: Quantum Machines, Tel Aviv, Israel
Contact person: Dr. Gal Winer
Group website: Quantum Machines
Description: Developing Quantum Computing Protocols together with our quantum experts, for a specific qubit platform, in QM’s pulse-level language QUA. The specific protocols will be chosen according to the knowledge of the intern and will be used by QM’s community of customers.

Prerequisite knowledge: BSc in physics. Experience in an experimental physics lab from the fields of quantum computation or quantum information.
Internship period and planned duration: 3-6 months

Superradiant optical clocks: Meter-long transportation of ultracold atoms using Bessel beams (experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Florian Schreck and Dr. Francesca Famà
Group website: iqClock.eu
Lab tour video,Quantum Science Seminar talk describing project
Description: Design, construction, and analysis of a test system to optimize the shape and propagation of a dipole guide for ultracold atoms using meter-long Bessel beams. The task includes construction of an injection-locked diode laser with related electronics, (optional) the design of the test bed (using programs like Solidwork), laser beam imaging, and data analysis with python/matlab

Prerequisite knowledge: Enthusiasm and curiosity about research. Any previous experience with optics/electronics is welcome.
Internship period and planned duration:Flexible start (from April 2022), duration 4 – 6 months

A compact and stable laser system to manipulate atoms to realize a continuously operating superradiant laser (experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Florian Schreck and Dr. Francesca Famà
Group website: iqClock.eu
Lab tour video,Quantum Science Seminar talk describing project
Description: Design and construction of a compact optical system aimed at providing beams for: transversal cooling of atoms, pumping sequence and lock of a superradiant laser and cavity. The task is flexible and adaptable to the student, with the possibility to concentrate more on different aspects. Tasks are design of the laser beam distribution system (using programs like Solidworks), construction of injection-locked diode lasers with 461nm/689nm/707nm ​wavelength (with related electronics), data analysis with Python/Matlab.

Prerequisite knowledge: Enthusiasm and curiosity about research. Any previous experience with optics/electronics is welcome.
Internship period and planned duration:Flexible start (from April 2022), duration 5 – 6 months

Building, characterising, and implementing a bi-chromatic tweezer setup for individual Rb and Sr atoms (experimental)
Amsterdam, The Netherlands


Location: University of Amsterdam, The Netherlands
Contact person: Prof. Florian Schreck and Dr. Prem Thekkeppatt
Group website: iqClock.eu
Lab tour video,Presentation
Description: RbSr, an alkali-alkaline earth molecule in its absolute rovibrational ground state, has a rich internal structure and exhibits intricate interactions, such as electric and magnetic dipole interactions. These properties of RbSr molecules along with single molecule addressing and manipulation techniques will enable us to create and study unexplored few- and many-body systems. In this project, you will join the RbSr team and together with the team plan a tweezer setup for the preparation of individual RbSr molecules. This task includes determination of the best tweezer trap wavelengths, and characterisation of a commercial achromatic microscope objective at Rb and Sr trapping and imaging wavelengths.

Prerequisite knowledge: Enthusiasm and curiosity about research. Nice to have knowledge: Hands on experience with lasers and optical systems. Knowledge in designing optical and opto-mechanical systems using ray tracing programs and CAD programs.
Internship period and planned duration: first half of 2022

Experimental control software development (industry, quantum software)
Tel Aviv, Israel


Location: Quantum Machines, Tel Aviv, Israel
Contact person: Dr. Gal Winer
Group website: Quantum Machines
Description: Participants will take part in developing an open system to coordinate and analyze complex experiments involving multiple qubits. This includes developing unique and performant software infrastructure for experimentation, calibration, and data collection. 

Prerequisite knowledge: Background in python programming or similar and enjoy programming
Internship period and planned duration: 3-6 months

Quantum Compilation Research and Development (industry, quantum software)
Tel Aviv, Israel


Location: Quantum Machines, Tel Aviv, Israel
Contact person: Dr. Gal Winer
Group website: Quantum Machines
Description: Participants will take part in developing the quantum compilation software stack, including researching compilation algorithms and hybrid quantum algorithms (i.e., Variational Quantum Eigensolver, Quantum Approximate Optimization Algorithm). The compilation targets Quantum Machines’ control system and pulse level language, QUA.

Prerequisite knowledge: Ability to study complex algorithms and tools, through reading state of the art papers. Moreover, candidates should be able to implement algorithms and integrate open source tools
Internship period and planned duration: 3-6 months

Old projects (already assigned)


(Assigned)
Molecular quantum simulator (theory)
Strasbourg, France


Location: ISIS, University of Strasbourg, France
Contact person: Prof. Shannon Whitlock and Dr. Tom Bienaime
Group website: Exotic Quantum Matter
Description: Interacting molecular systems are notoriously difficult to understand due to their coupled electronic and vibrational degrees of freedom and the strong interplay with the environment. In this project you will work closely with an experimental team to elaborate a novel concrete theoretical proposal for quantum simulation of molecular dynamics in arrays of ultacold atomic ensembles. You will realize a mapping between the dynamics of a microscopic ensemble of three-level atoms under Rydberg blockade conditions to a dissipative spin-boson model (a paradigmatic model in molecular physics) and simulate how the competition between fast vibrational relaxation and dipolar interactions between ensembles can be used to simulate ultrafast energy transfer processes of relevance in e.g., photosynthesis. This will open up new applications of Rydberg quantum simulators for key problems in molecular physics, chemistry and biophysics.

Prerequisite knowledge: Light-matter interactions, open quantum systems. Some experience with numerical simulation, e.g. using QuTip is a plus.
Internship period and planned duration: 2-4 months between February and October 2022

(Assigned)
Study of the performance of a satellite-to-ground quantum optical communication link (Industry)
Toulouse, France


Location: Thales Alenia Space, Toulouse, France
Contact person: Dr. Laurent De Forges De Parny
Group website: Thales Group
Description: The proposed project falls within the theme of quantum cryptography, or Quantum Key Distribution, which will allow users to encrypt their communications. These cryptography keys are established by exploiting the properties of quantum optics (superposition of quantum states, non-cloning theorem). The aim of this internship is to study the performance of a quantum optical communication link between a ground station and a satellite traveling in low orbit.

Prerequisite knowledge: 2nd year Master. Internship experience in optics or space and knowledge of quantum optics or free space optical communications would be advantageous
Internship period and planned duration: 5 Months from January/February

Sizing and performance of a quantum satellite communication network (Industry)
Toulouse, France


Location: Thales Alenia Space, Toulouse, France
Contact person: Dr. Laurent De Forges De Parny
Group website: Thales Group
Description: The proposed project falls within the theme of quantum cryptography, or Quantum Key Distribution (QKD), which will allow users to encrypt their communications with unconditional security. These cryptography keys are established by exploiting the properties of quantum optics (superposition of quantum states, non-cloning theorem). The aim of this internship is to study the overall performance of different types of constellations. You will use a powerful digital simulation tool developed by the team to conduct this study.

Prerequisite knowledge: 2nd year Master. Internship experience in optics or space and knowledge of quantum optics or free space optical communications would be advantageous
Internship period and planned duration: 5 Months from January/February

(Assigned) Machine learning assisted certification of quantum devices (theory)
Heidelberg, Germany


Location:University of Heidelberg, Germany
Contact person Dr. Martin Gärttner
Group website: Many-Body Quantum Dynamics
Description: Certifying the proper functioning of quantum devices required characterizing the quantum states they prepare using quantum state tomography. This methods is experimentally costly and not scalable to large system sizes. In this project we will explore ways to make this process more efficient using prior information about the prepared state and adaptive measurement strategies, combined with machine learning methods.

Prerequisite knowledge: Solid knowledge of quantum mechanics, Python or Julia programming skills, Advantageous: Basic knowledge of statistical estimation theory and machine learning
Internship period and planned duration: 3 months between February and October 2022

(Assigned) Entanglement detection in quantum field simulators (theory)
Heidelberg, Germany


Location:University of Heidelberg, Germany
Contact person Dr. Martin Gärttner
Group website: Many-Body Quantum Dynamics
Description: Entanglement is a key feature of quantum systems and underlies many collective quantum phenomena. Thus, detecting and quantifying entanglement based on experimental data from quantum simulations is crucial. The goal of this project is to develop means to efficiently detect entanglement in experiments with continuous variable systems such as Bose-Einstein condensates.

Prerequisite knowledge: Solid knowledge of quantum mechanics, Advantageous: Basic knowledge of quantum information theory and ultracold quantum gases
Internship period and planned duration: 3 months between February and October 2022

(Assigned)
Study and experimentation of the distribution of quantum keys (Industry)
Toulouse, France


Location: Thales Alenia Space, Toulouse, France
Contact person: Dr. Mathieu Bertrand
Group website: Thales Group
Description: The Research & Technology Department of Thalès Alenia Space is in charge of defining the future satellites and space systems in the telecommunications, navigation and observation fields. In the photonics team in particular, we pave the way to data streams increase and security. Concerning the security part, Europe is highly investing in Quantum Key Distribution (QKD) programs. This physically robust approach applied to the spatial domain will allow long range secured communications in a nearby future.

Prerequisite knowledge: We are looking for an end-of-studies intern with knowledge in quantum mechanics. The intern preferably has a prior experience in optics and in labarotary work.
Internship period and planned duration: 5 Months from January/February