23/02/2026

News > Job > Offre de stage
Circuit engineering and thermodynamics characterization of correlated quantum states

Laboratory : C2N
Place : 10 Bd Thomas Gobert, Palaiseau
Manager : Frédéric Pierre

Internship

Students will become familiar with various ultra-sensitive measurement techniques (conductance and electrical fluctuations, thermodynamic probes, including entropy), cryogenic techniques for temperatures in the millikelvin range, electron beam nanofabrication in the exceptional facilities of the C2N, and advanced quantum mechanics. The student’s work will encompass all aspects of the project, including theoretical analysis and modeling.

16/02/2026

News > Job > Offre de stage
Quantum superpositions of graphs and causal unitary evolutions

Laboratory : Inria Saclay
Place : Gif-sur-Yvette
Manager : Pablo Arrighi : pablo.arrighi@inria.fr

Context

In classical Computer Science many composite systems are modelled by dynamical networks, for instance computer processes, neurons, biochemical agents, particle systems, market agents and social network users. This because those systems, e.g. social networks agents, have the capabilities to spawn, disappear, connect and disconnect. Whilst standard quantum theory focusses on the quantisation of the individual systems within networks, a recently developed quantum networks theory seeks to quantise all features of dynamical networks—including their connectivity and population.

Resume

The Master 2 student will conduct theoretical research on quantum superpositions of graphs and causal unitary operators that evolve such superpositions without information traveling too fast, i.e., while respecting graph distance.

Publication

05/02/2026

News > Job > Offre de stage
Introduction to optical characterization of quantum nanodiamonds

Laboratory : Institut de Recherche de Chimie Paris
Place : Chimie ParisTech, CNRS, PSL Université, Paris 5è
Manager : Mary De Feudis; mary.de-feudis@cyu.fr

Context

This short-term internship aims to introduce the student to the field of quantum nanodiamonds and to the main optical characterization techniques used in physics and materials science. It is carried out within the framework of the NanoG4V project (PI M. De Feudis), funded by the French National Research Agency (ANR), which aims to produce a new generation of high-quality, quantum-grade nanodiamonds for a wide range of applications, such as extreme-condition sensing, nanoscale thermometry, and live-cell dual-color imaging. The student will join the CQSD group of the MPOE team at the IRCP Institute.

Internship

The student will be trained in the study of nanodiamond samples using Raman spectroscopy and photoluminescence (PL) at room temperature, employing different laser wavelengths (green, red, blue). The measurements will allow the identification of diamond and graphite phases, as well as different color centers, such as silicon-vacancy (SiV) and nitrogenvacancy (NV) centers, and the understanding of their spectroscopic signatures. The internship will include a strong experimental component: sample preparation and handling, hands-on use of a Raman/PL spectrometer (Renishaw software), understanding of the general operation of the instrumentation and its electronics. Particular attention will be devoted to data processing and analysis. The student will learn how to exploit experimental results using scientific
software (Origin, etc.) to produce high-quality graphs, perform mathematical fitting procedures, and generate 3D representations. An introduction to data structuring and compatibility between different file formats (e.g. between Python and Origin) will also be provided. The internship will be supervised by the Ass. Prof. Mary De Feudis (project leader) and a PhD student, within an active and stimulating international research environment.

Perspectives

For interested students, this internship may lead to higher-level internships, including the processing of data obtained at the SOLEIL synchrotron (tomography, radiography, X-ray diffraction).

03/02/2026

News > Job > Offre de stage
Electro-optic response in layeredin-plane-polarized ferroelectric thin films

Laboratory : Laboratoire Albert Fert
Place : 1 avenue Augustin-Fresnel, 91767 Palaiseau, France
Manager : Elzbieta Gradauskaite, elzbieta.gradauskaite@cnrs-thales.fr

Scientific Context

Layered Carpy-Galy oxides (general formula AₙBₙO₃ₙ₊₂, e.g. La2Ti2O7) are a versatile family of ferroelectric materials consisting of perovskite blocks separated by additional oxygen planes. Their uniaxial in-plane polarization, arising from cooperative oxygen octahedral rotations, makes them fundamentally different from conventional ferroelectric perovskites and potentially valuable for electro-optic applications (e.g. photonic integrated circuits). In our laboratory, through epitaxy we stabilized high-quality, single-crystalline thin films of these compounds, with nearly fourfold increase in ferroelectric polarization [1]. This opens the way to investigate their electro-optic properties, in particular, the Pockels effect, which describes the linear modulation of refractive index of a material under an applied electric field. Studying this effect in layered ferroelectrics will provide insight into how their uniaxial in-plane polarization influence electro-optic coefficients, thus evaluating their potential for compact on-chip electro-optic
modulators [2].

Work program & skills acquired during internship

During the internship, the student will learn the basics of thin-film structural characterization (X-ray diffraction, atomic force microscopy) to determine film orientation and quality; perform ellipsometry measurementsto extract the refractive indices and assess the material’s birefringence; set up and carry out electro-optic coefficient measurements using a laser, Soleil-Babinet compensator, polarizer, and photodiode combined with lock-in amplifier detection [3] to quantify the effective electro-optic coefficients; compare results with theoretical predictions/canonical ferroelectric materials and uncover how the anisotropic layered structure and uniaxial in plane polarization affect electro-optic properties.
The project will primarily focus on thin-film optical characterization and data interpretation, with a brief
introduction to material properties. The knowledge in optical measurements (ellipsometry, birefringence, etc.) is a plus.

  1. Gradauskaite, E. et al. Adv. Mater. 37 (12), 2416963 (2025).
  2. Abel, S. et al. Nat. Mater. 18, 42 (2019).
  3. Sando, D. et al. Phys. Rev. B 89, 195106 (2014).

Work environment

You will be working under the supervision of: Elzbieta Gradauskaite (elzbieta.gradauskaite@cnrs-thales.fr , CNRS), Manuel Bibes (CNRS), Jérôme Bourderionnet (Thales), Gilles Feugnet (Thales).

03/02/2026

News > Job > Offre de stage
Dynamic strain engineering of the metal-insulatortransition in nickelates for thermo-optical applications

Laboratory : Laboratoire Albert Fert
Place : 1 avenue Augustin-Fresnel, 91767 Palaiseau, France
Manager : Lucia Iglesias, lucia.iglesias@cnrs-thales.fr

Scientific Context

Rare-earth perovskite nickelates (RNiO₃, with R a rareearth element) are correlated oxides that exhibit sharp, tuneable metal–insulator transitions (MITs). Their electronic properties are highly sensitive to lattice distortions and strain (Fig. 1), making them excellent model systems for studying structure–property coupling in quantum materials. Our group has demonstrated that the MIT in nickelate thin films can be shifted toward room temperature by mixing Sm and Nd in controlled ratios, opening opportunities for
device-oriented applications. Building on this progress, the proposed project aims to achieve active and reversible control of the transition through strain engineering. Epitaxial films will be grown on piezoelectric substrates (BaTiO₃ or PMN-PT), where an applied gate voltage dynamically modulates the biaxial strain and, consequently, the MIT. The resulting strain-driven tuning will be explored through
transport and infrared optical measurements to realize dynamically tuneable properties relevant for thermo-optical applications.

Work program & skills acquired during internship

The student will grow and optimize nickelatesthin films of selected compositions using Pulsed Laser
Deposition (PLD) technique on piezo electric substrates. He/she will also perform a complete structural
characterization of the thin films through X-Ray reflectivity (XRR), X-Ray diffraction (XRD), Reciprocal
Space Map technique (RSM) and Atomic Force Microscopy (AFM). Resistivity measurements as a
function of the temperature and gate voltage will determine the influence of strain on the metal-insulator
transition, while optical characterization, including thermal reflectance, emissivity measurements and
ellipsometry, will assess the strain-dependent infrared behaviour. Experience with electrical transport
and optical characterization techniques will be considered an asset, along with strong experimental
skills, data analysis capabilities, and the ability to work effectively in an interdisciplinary environment
bridging academic research and industrial innovation.

Work environment

You will be working under the supervision of: Lucia Iglesias (CNRS) and Julian Peiro (Thales) at
Laboratoire Albert Fert located in Thales Research and Technology building on the Paris-Saclay campus.

03/02/2026

News > Job > Offre de stage
Ferroelectric-metallic BaTiO3 thin films grown by hybrid MBE for non-volatile field-effect devices

Laboratory : Laboratoire Albert Fert - Centre de Nanosciences et de Nanotechnologies
Place : 1 avenue Augustin-Fresnel, 91767 Palaiseau, France
Manager : Manuel BIBES, manuel.bibes@cnrs-thales.fr

Scientific Context

Ferroelectrics are polar materials whose switchable polarization can be used to store non-volatile information. Among them, BaTiO₃ (BTO) stands out for its low-voltage switching and high endurance in thin-film form. Remarkably, BTO can also become conducting when doped with electrons, leading to a rare coexistence of ferroelectricity and metallicity. This unconventional combination raises key questions: how do structural distortions, carrier density, and electrostatic screening interact at the nanoscale? How does this balance evolve with film thickness, doping level, or epitaxial strain? Beyond fundamental interest, creating a 2D conducting channel – either a two-dimensional electron gas (2DEG) or a lightly
doped polar metal – within the same ferroelectric matrix offers a new route to mitigate interface defects that limit the performance of ferroelectric field-effect transistors (FeFETs).

Work program & skills acquired during internship

The goal of the internship is to grow epitaxial BaTiO3 films by hybrid molecular beam epitaxy (MBE), a technique enabling atomic-scale control and the highest material quality. The intern will:

  • Learn and assist in the operation of the hybrid-MBE system to deposit BTO and SrRuO3 bottom electrodes;
  • Characterize films using X-ray diffraction, atomic-force microscopy, pizeoresponse-force microscopy and electrical measurements;
  • Generate and study ultrathin conducting layers in BTO, either by controlled La doping or by inducing a 2DEG at the surface;
  • Fabricate SRO/BTO/SRO capacitors and measure ferroelectric properties (switching voltage, endurance, retention);
  • Use conducting BTO layers as channels for FeFETs, and analyze their transport characteristics.

This internship will provide strong hands-on experience in thin-film growth, advanced characterization, and device physics. Depending on progress, it can be extended into a PhD thesis focusing on the physics and applications of ferroelectric-metallic oxides.

Work environment

You will work at C2N with Thomas Maroutian for film growth, and at the Laboratoire Albert Fert with Manuel Bibes for ferroelectric characterization and device studies.

10/12/2025

News > Job > Offre d'emploi permanent
Instrument development expert

Laboratory : LUMIN
Place : Gif-sur-Yvette
Manager : Fabien BRETENAKER

Mission

Development and management of a component testing platform for quantum sensors based on Rydberg atoms for applications in radio frequency field metrology.

Activities

  • Manage a component testing platform for quantum sensors based on Rydberg atoms (lasers, atomic cells, modulators, servo and modulation/demodulation electronics, etc.).
  • Develop the Rydberg test platform (lasers, electronics, cells, modulators, RF circuits, etc.). Manage external collaborations in order to give the Rydberg atom-based quantum sensor community access to the platform’s resources.
  • Develop innovative laser sources for quantum sensors,
  • Develop fiber-based atomic cells, – Develop RF circuits for metrology,
  • Simulate RF field distributions in cells,
  • Simulate atomic responses to optical and RF excitations,
  • If necessary, the person will be involved in other research operations in the laboratory that could benefit from their expertise.

Skills

  • Quantum physics and atom-laser interaction,
  • Laser technology for metrology,
  • Photonics components,
  • Digital and analog electronics,
  • Finite element simulations for RF electromagnetic fields.

Operational skills

  • Combining a set of elements from different technological fields (optics, lasers, electronics, data acquisition, radio frequencies),
  • Managing a project in a national or international context and in partnership with industrialists,
  • Using domain-specific software (Python, Matlab, HFSS, ARC library, etc.),
  • Participate in the supervision of young researchers,
  • Lead a meeting,
  • Conduct negotiations with a supplier,
  • Apply health and safety rules,
  • Manage a budget,
  • Apply public procurement regulations,
  • Monitor scientific and technological developments,
  • Project management,
  • English level B2.

Join LUMIN

The Light, Matter and Interfaces Laboratory is a joint unit of the CNRS (UMR 9024), ENS Paris-Saclay, Paris-Saclay University and CentraleSupélec, located on the Saclay plateau (Orsay and Gif-sur-Yvette). It comprises around 30 permanent researchers and teacher-researchers, a dozen technical and administrative staff, and around 40 doctoral students and non-permanent researchers. The laboratory specializes in photonics applied to various fields of physics, engineering sciences, materials, biology, and quantum technologies. The engineer will be a member of the laboratory’s technical department, reporting directly to the unit director. He/she will work primarily on the Rydberg atom-based quantum sensor development platform located in building 505 of the Orsay Faculty of Science, in collaboration with two permanent LuMIn researchers, post-doctoral students, technicians (mechanical, laser, electronic), engineers, and doctoral students from LuMIn, as well as French and foreign partner laboratories and industrial partners, in order to make the platform’s resources available to the community and participate in the technological development of radiofrequency field quantum sensors.

10/12/2025

News > Job > Offre d'emploi permanent
Research Engineer in Quantum Computing for Multiphysics Flows

Laboratory : ONERA
Place : Palaiseau

ONERA, a key player in aeronautics and space research, employs more than 2,200 people. Under the supervision of the Ministry of the Armed Forces, it has a budget of €336 million (2024), more than half of which comes from study, research, and testing contracts. As a state expert, ONERA is preparing for tomorrow’s defense, responding to the aeronautics and space challenges of the future, and contributing to the competitiveness of the aerospace industry. It has expertise in all disciplines and technologies in the field. All major civil and military aerospace programs in France and Europe carry a part of ONERA’s DNA: Ariane, Airbus, Falcon, Rafale, missiles, helicopters, engines, radars, etc. Internationally recognized and often award-winning, its researchers train many doctoral students.

Context

The Multi-Physics for Energy Department conducts research and studies for the benefit of manufacturers and government agencies in the civil and military aerospace sectors, while also working closely with the academic world. The Department’s activities are divided into six strategic areas: Innovative energy systems; Propulsion system performance; Testing under representative conditions; Multiphysics modeling and simulation; Safety and environmental impact; Multiphysics software platforms.

At the DMPE, you will be attached to the MPA (Modeling for Aerobic Propulsion) unit, which works mainly on the numerical simulation of combustion chambers for turbomachines and ramjets/ramjet-turbojets. This team implements and (co-)develops tools ranging from a systems approach for complete engine performance to multi-physics CFD simulation for more detailed studies (combustion chambers, engines, or complete hypersonic vehicles).

Your work will be part of a research project on hypersonics (MIHYSYS project) and will be carried out at ONERA’s Q-Tech quantum laboratory, in collaboration with, among others, the head of the quantum computing division.

Mission

Your responsibilities will consist of studying the applications of quantum computing to the simulation of multiphysics flows for aeronautical propulsion (reactive and/or two-phase flows, turbulent flows, etc.). Your activities will be broken down as follows:

  • evaluating quantum algorithms (cost, robustness, accuracy) in the processing of partial differential equations for combustion (e.g., laminar flat flame);
  • evaluating different technological solutions (cold atoms, photonics, etc.) for solving combustion problems;
  • overseeing research work carried out by external partners on this subject (work planning, regular monitoring during the project);
  • collaborating with other members of the unit to compare the results of quantum calculations with the results of “classical” CFD calculations (typically performed using ONERA’s CEDRE code) and defining the requirements for different target applications;
  • evaluate the longer-term potential of quantum computing for the industrial applications studied by ONERA and establish an associated roadmap;
  • participate in the setup and management of internal research projects, internships, and theses;
  • promote the results obtained through publications and conference presentations.

This position will be covered by a permanent contract or a research project or operation contract for the MIHYSYS project, with an expected duration of 39 months.

Profile

  • Doctorate in physics, applied mathematics, or equivalent with strong knowledge of numerical methods.
  • Specialization in combustion/energy would be a plus.
  • Previous experience in quantum computing desirable.
  • Strong interest in applied research.
  • Strong scientific leadership skills for national or international projects.
  • Fluency in English (writing, presentations, and discussions).
  • Ability to work independently and as part of a team.

Join ONERA and shape the future!

Joining ONERA means much more than just joining France’s leading aerospace research organization. It means embarking on an adventure where every day is an opportunity to innovate, push the boundaries of knowledge, and build the future.

At ONERA, we promote a healthy work-life balance. We offer a stimulating environment that encourages the continuous training of our employees, allowing everyone to develop and flourish. Our company is committed to a policy of integrating and retaining people with disabilities in the workplace. Our professional equality index of 95/100, established in 2023, reflects our commitment to diversity.

At ONERA, we firmly believe that the diversity of our teams is a strength that enriches our work and our innovations. Together, we can shape the future of aeronautics, defense, and space. Join ONERA and take flight toward the future.

10/12/2025

News > Job > Offre d'emploi permanent
Engineer Research Engineer in InstrumentationEngineer

Laboratory : LPL
Place : Université Sorbonne Paris Nord, Villetaneuse

Reserved for CNRS agents (civil servants and permanent contract employees) and civil servants and permanent contract employees under public law.

Responsibilities

The research engineer recruited will be assigned to support the development of new experiments in the Optics and Atomic Interferometry, Atomic Spectroscopy at Interfaces, Biomolecules and Spectroscopy, and Metrology, Molecules and Fundamental Tests teams. These teams share a common culture both from a scientific point of view (atoms and molecules, matter-radiation interaction) and from a technical point of view (lasers, optics, electronic and computer control of experiments, vacuum techniques, cryogenics).

Within these teams, and with a privileged link to the LPL’s mechanical, electronic, and optical services, he/she will be responsible for the design, implementation, and development of complex and specialized experimental devices in the field of laser-atom or laser-molecule interactions.

Activities

  • Discuss scientific objectives and methodologies with the research team, as well as scientific and technological developments in experimental devices.
  • Study experimental requirements (continuous or pulsed lasers, laser chains combining opto-mechanical and opto-electronic systems, ultra-high vacuum chambers, cryogenic techniques, ion optics, electronic and computer control of experiments).
  • Propose appropriate measurement, characterization, and observation techniques and methods.
  • Analyze metrological constraints and design or upgrade the experimental device and measurement chain.
  • Establish technical specifications and monitor project progress, interacting with the laboratory’s mechanical, electronic, and optical departments for custom projects. Test the results.
  • Organize project monitoring, validate and qualify the device or method at its various stages.
  • Oversee the performance of measurements, interpret and validate them.
  • Provide training and information on the principles and implementation of experimental devices and ensure operational safety.
  • Design and implement new experimental systems. Develop experimental devices and ensure their maintenance.
  • Manage all human, technical, and financial resources allocated to experimental developments.
  • Structure a technology watch.
  • Present, disseminate, and promote achievements
  • Provide advice in your area of expertise

Knowledge

  • Engineering techniques and sciences (optics, automation, microcomputing, mechanics) (in-depth knowledge)
  • Metrology (in-depth knowledge)
  • Lasers and optics, vacuum devices (in-depth knowledge)
  • General physics: electromagnetism, mechanics, thermodynamics, etc. (general knowledge)
  • Environment and professional networks (general knowledge)
  • English language: B1 to B2 (Common European Framework of Reference for Languages)
  • Written and oral presentation techniques

Skills

  • Combining a set of elements from different technological fields
  • Managing a project
  • Using domain-specific software
  • Leading a team
  • Leading a meeting
  • Conducting negotiations
  • Applying health and safety rules
  • Managing a budget
  • Applying public procurement regulations
  • Monitoring developments

Soft skills

  • Intellectual curiosity
  • Adaptability
  • Listening skills
  • Critical thinking
  • Analytical reasoning
  • Conceptualization
  • Initiative
  • Creativity/Innovation
  • Independence/Self-confidence
  • Rigorousness/Reliability
  • Organizational skills
  • Forward thinking

Join the LPL

The Laser Physics Laboratory (LPL) is an experimental physics research laboratory. It is supervised by the CNRS (CNRS Physics) and Paris XIII University, known as Sorbonne Paris Nord University (USPN). Its premises are located on the Villetaneuse campus in the buildings of the Galileo Institute. The LPL has around 90 staff, including 55 permanent employees and 35 doctoral students, post-doctoral researchers, and other fixed-term contract employees. Its research topics include quantum gases, interactions between light and atoms or molecules, photonic devices, and optics for biomedical applications.

Experimental developments play a central role in the LPL’s work, and the engineer will participate in various projects involving instrumentation, optics, lasers, or vacuum chambers, depending on the needs of the laboratory teams.

26/08/2025

News > Job > Offre de post-doc
Metrological characterization of traveling wave parametric amplifiers (TWPA)

Laboratory : LNE
Place : Trappes - Bassin de St Quentin-en-Yvelines

Duration : 24 months

LNE

A leader in the field of measurement and standards, with a strong reputation in France and internationally, the LNE supports industrial innovation and is positioned as a key player in promoting a more competitive economy and a safer society. At the crossroads of science and industry since its creation in 1901, the LNE offers its expertise to all economic players involved in product quality and safety. As the leader in French metrology, our research is at the heart of our public service mission and is a fundamental factor in supporting the competitiveness of businesses. We are committed to meeting the requirements of industry and academia for ever more accurate measurements, carried out in increasingly extreme conditions or on innovative subjects such as autonomous vehicles, nanotechnologies, and additive manufacturing.

Missions

As part of the National Quantum Strategy, the LNE coordinates the MetriQs-France program, dedicated to the development, operation, and promotion of measurement standards for the reliable characterization and evaluation of quantum technologies. Among the enabling technologies for qubits, traveling wave parametric amplifiers (TWPA), based on the Josephson effect, are key components for the optimal reading of superconducting qubits, which require high-fidelity electrical measurements via amplification with noise close to the quantum limit over a wide bandwidth. The reliable and harmonized evaluation and quantification of the performance of these Josephson parametric amplifiers is crucial to improving the maturity of this technology and, ultimately, to progressing toward the overall evaluation of the performance of superconducting quantum computers, a major objective of the MetriQs program. Within the LNE’s fundamental electrical metrology department, your mission will be to coordinate the LNE’s work on the metrological characterization of TWPA in various projects, both at the national level (MetriQs-Dev-France MOCQUA) and European level (Horizon Europe JRP MetSuperQ and Qu-Test projects). You will contribute fully to the experimental work planned as part of these various projects and to their promotion.

In this context, your main tasks will therefore consist of:

  • Participating in standardization efforts concerning TWPA (intercomparisons, best practice guides, etc.).
  • Developing high-frequency measurement techniques (calibrated S parameters, noise, etc.) at cryogenic temperatures and applying them to the characterization of TWPA, both as isolated components and as components integrated into a superconducting qubit readout chain;
  • Analyzing the data obtained and comparing it with theoretical and simulated models;
  • Promoting the results through scientific communications (articles and conferences);

Profil

You hold a PhD in solid-state quantum physics.
You are able to analyze results and synthesize information.
You are pragmatic, rigorous, and possess a critical mind. You are able to work both independently and as part of a team. You are open to participating in several projects at different levels (at LNE, nationally, and in Europe).
You have experience in cryogenic measurements of superconducting circuits, including microwave measurements and associated engineering, and ideally previous experience in characterizing Josephson parametric amplifiers.
You have a strong interest in experimental science, measurement, instrumentation, and technological and applied research.
Fluency in scientific English is required.

Rejoindre le LNE

  • Join an international group of nearly 1,000 employees.
  • Participate in the development of an EPIC that has been serving society and citizens since 1901.
  • Join an organization that supports local authorities and manufacturers in meeting the societal and environmental challenges of tomorrow.
  • Join a research organization involved in European and international projects.
  • Join a company that places respect and fairness at the heart of its HR policies.
  • Join a company that is committed to CSR and has implemented a sustainable mobility package agreement.
  • Join a company that offers personalized integration and regular training courses.
  • Enjoy a fixed salary over 12 months as well as an annual end-of-year bonus.
  • Enjoy executive status with numerous benefits.
  • Enjoy a profit-sharing bonus and an employee savings plan (PEE/PERCO) with employer contributions.
  • Enjoy health insurance* and life insurance*.
  • Have access to the company restaurant directly on our Trappes site.
  • Have access to a wide range of offers through our CSE

*under the conditions set out in the agreements and their amendments.