• Aeronautics - Aerospace - Defence
  • Chemistry - Materials
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  • Digital
  • Energy, Ecology, Environment
  • Mobility and transport
  • Social - Societal - Solidarity Innovation

Theoretical Physics Institute (IPhT)

Research unit


The IPHT research focuses on major topics of modern theoretical physics: High energy physics, cosmology, quantum gravitation, string theory, exact methods and mathematical physics, condensed matter physics, quantum physics, statistical physics, out of equilibrium physics, biophysics.
These theoretical methods are successfully applied to interdisciplinary subjects such as computer science (constraint satisfaction, error correcting codes, analysis of search algorithms), biology (genetic and evolutionary models), epidemiology (controlling the spread of infectious diseases), or quantitative study of geographic and urban networks using the mathematical apparatus of statistical mechanics.


  • Mrs Catherine PEPIN

Innovation themes

Map and access

Route de l'Orme aux Merisiers
CEA - Saclay, Bâtiment 774

Our research areas


- Mathematical Physics (quantum chaos, dynamical systems, field theory, combinatorial statistical physics, conformal theories, integrable systems, string theory, quantum gravity)
- Particle Physics / Astrophysics (Standard model, cosmology, quantum chromodynamics, hadronic physics)
- Statistical Physics / Condensed Matter (non-equilibrium and disordered systems, quantum systems and condensed matter, soft matter and biological systems)

Applications sectors

  • IT / software
  • Networks / Telecom
  • Construction / Architecture / Urban planning / Real Estate
  • Energy
  • Education / Training
  • Media / Communication / Publishing / Events
  • Materials (Metal, Glass, Ceramic, Composite...)

Total number of employees

Total number of employees : 120
Number of researchers : 90
Number of doctoral students : 25

Equipment(s) open to collaboration

Academics and industry:
Free software and packages:
- McGenus and TT2NE (Monte Carlo algorithms to predict RNA secondary structures with pseudoknots)
- Mistral (multiple protein structural alignment)

TRIQS (Toolbox for Research on Interacting Quantum Systems)

FASTJET (Software package for jet finding in high energy collisions)


Our results

Valuation offer

- scientific and technical consulting (complex problems resolution, optimisation methods implementation...)
- conferences
- formations

Projects examples

ERC Advanced Grant :
- QCDMAT: Strongly Coupled QCD Matter (2011-2016)
- NuQFT: The Hall Plateau Transition and non-unitary Quantum Field Theory (2015-2020)
- Champagne: Charge orders, Magnetism and Pairing in High Temperature Supraconductors (2016-2021)

ERC Starting Grant :
- Nano-Graphene: Understanding the Electronic Properties of Carbon Nanotubes and Graphene as Quantum Conductors (2011-2016)
- Observablestring: The Low Energy Limit of String Theory and the Observable World (2011-2016)
- NPRGGLASS: Non Perturbative Renormalization Group of Glassy Systems (2012-2017)
- MottMetals: Quantitative approaches for strongly correlated quantum systems in equilibrium and far from equilibrium (2012-2017)
- Grant PreQFT: Strategic Predictions for Quantum Field Theories (2015-2020)


Industrial and scientific relations

Scientific collaborations

More than 100 international collaborations : UE, USA, Russia, Japan, Brasil, Argentina, India, China
Collaborations on large scientific instruments: CERN, RHIC(PHENIX), BLACKHAT, LHC (ATLAS, CMS, ALICE, LHC B)


Establishments of affiliation