CEA-Saclay, Institut de Physique Theorique

3473 25820
Position ID:CEA-Saclay-IPhT-IPHTCCQ2024 [#25820]
Position Title: Joint position at Flatiron Institute and CEA-Saclay/IPhT in computational quantum many-body physics
Position Type:Tenured/Tenure-track faculty
Position Location:Gif sur Yvette, Ile de France 91191, France [map] sort by distance
Subject Areas: Physics / Computational physics, Quantum Condensed Matter Theory, Quantum Physics
Appl Deadline:2023/11/15 11:59PMhelp popup finished (2023/09/20, finished 2024/05/18)
Position Description:    

*** this position has been closed and new applications are no longer accepted. ***


The Institute of Theoretical Physics (IPhT) of the CEA-Saclay (French Alternative Energies and Atomic Energy Commission), jointly with the Center for Computational Quantum Physics (CCQ) of the Simons Foundation’s Flatiron Institute, invites applications for a joint position in the area of computational quantum condensed matter physics. The position consists in a full-time CEA permanent position at IPhT/CEA-Saclay, of which the first three years will be spent on ``detachement" as a full time Associate Research Scientist employed at the Flatiron Institute's Center for Computational Quantum Physics (CCQ).

We seek an intellectual leader who will establish a strong research program in the development of numerical methods for the quantum many-body problem and develop long term collaborations between the two institutes. Topics of interest include, but are not limited to, tensor networks, machine learning techniques for the quantum many-body problem and real-time dynamics of strongly correlated systems.

Directed by Catherine Pépin The Institut de Physique Théorique (IPhT) is a joint Research Institute of CEA and CNRS and is part of the Université Paris-Saclay. IPhT is a multidisciplinary institute, with a strong expertise in a wide range of topics in condensed matter physics, statistical physics, quantum information, mathematical physics, high energy physics, string theory, and cosmology. It is located in the south of Paris, in a rich scientific environment (Université Paris-Saclay, École Polytechnique). More details can be found at www.ipht.fr.

Directed by Antoine Georges and co-directed by Andrew Millis, the Center for Computational Quantum Physics (CCQ), located in New York city, is a leading international center for the study of equilibrium and non-equilibrium many-body quantum systems, with applications to condensed matter physics, materials science, chemistry and related fields. The development of the concepts, algorithms and code libraries needed to advance the field is fundamental to the work of the center. Research projects currently pursued at CCQ cover a broad range of methods and interest.

CCQ currently comprises more than 45 research and software scientists at career stages from recent Ph.D.s through senior scientists, as well as support staff, visiting scientists, and affiliated graduate students and interns. CCQ has vigorous visitor and workshop programs, strong interactions with scientists from neighboring institutions and is engaged in several national and international partnerships.

Associate Research Scientists/Research Scientists at CCQ are researchers who develop theoretical concepts, algorithms and codes, and apply these to obtain new insights into the quantum-mechanical behavior of models, materials and molecules.  They develop their own research programs and also work in collaboration with other CCQ scientists including postdoctoral fellows. Reporting to research scientists, and/or the director or co-director of CCQ as appropriate, these positions are based at the Flatiron Institute, Simons Foundation in New York City. The annual salary range is $130,000 to $165,000.

A research scientist at the CEA is a researcher who develops and executes an independent research program in theoretical physics - in this instance in computational quantum physics and its applications. Collaboration with other researchers at CEA and CCQ is also expected. The position is permanent and no teaching duties are associated with it. This position is based at the IPhT laboratory of the CEA in Saclay, France. The salary for this position will be determined by the CEA rules and scale.

Review of applications will start on or about November 15, 2023 and continue until the position is filled.


• Conduct research and/or develop and implement novel algorithms and codes relevant to CCQ and IPhT research directions.
• Publish research in refereed scientific and technical journals and present research at scientific conferences.
• Provide publicly available software for use by the scientific community.
• Support the public use of available software.
• Foster collaborations between CCQ and IPhT
• Assist in the organization of workshops, conferences and group seminars.
• Supervise research conducted by postdoctoral fellows and graduate and undergraduate students from neighboring institutions.
• Mentor summer students and assist in the organization of summer programs.
• Perform other duties or tasks as assigned or required.


• Ph.D. in a related field Related Skills & Other Requirements
• Postgraduate research experience (typically 2 to 6 years) in computational quantum many-body theory, computational condensed matter physics or another field of interest to the CCQ and IPhT.
• A solid experience with computational methods for the quantum many-body problem.
• A record of excellence in scientific publication
• Ability to do original and outstanding research in physics
• Effective oral and written communication skills
• Ability to work independently as well as in a collaborative team environment.

Required Application Materials
• CV
• Research statement outlining both past research accomplishments and a vision for scientific research at the CCQ and IPhT.
• Three (3) letters of recommendation submitted confidentially by the letter writers to ccqjobs@simonsfoundation.org and to academicjobsonline.org/ajo/jobs/25820.
• NB: The candidates are expected to send their application to both Institutes.
• Application links:
        • Link for CCQ: apply.interfolio.com/132545
        • Link for IPhT: academicjobsonline.org/ajo/jobs/25820

Many of the greatest ideas and discoveries come from a diverse mix of minds, backgrounds and experiences, and we are committed to cultivating an inclusive work environment. The Simons Foundation actively seeks a diverse applicant pool and encourages candidates of all backgrounds to apply. We provide equal opportunities to all employees and applicants for employment without regard to race, religion, color, age, sex, national origin, sexual orientation, gender identity, genetic disposition, neurodiversity, disability, veteran status or any other protected category under federal, state and local law.

Application Materials Required:
Submit the following items online at this website to complete your application:
And anything else requested in the position description.

Further Info:
email address
Institut de Physique Théorique
CEA Saclay
91191 Gif sur Yvette