
Laboratoire Kastler Brossel
A joint research unit of the Ecole Normale Supérieure, Sorbonne University, the College de France and the National Centre for Scientific Research (CNRS), the Laboratoire Kastler Brossel (LKB) is one of the main leaders worldwide in the field of quantum physics.
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News
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ACES/PHARAO space mission
After 25 years of development, the ACES/PHARAO space mission will launch to the International Space Station on April 21, 2025, at 10:15 a.m. Paris time, from Cape Canaveral, Florida.
Roberval award – Jury’s Special Mention
Sylvain Gigan
International Day of Women and Girls in Science!
February 11
Research topics
The Laboratoire Kastler Brossel, supported by 11 research teams, focuses its work in the field of quantum physics divided in 4 areas, along with a cross-disciplinary area dedicated to the practical applications of its research.
Events
Ignacio Cirac
Max Planck Institute of Quantum Optics
Quantum Computing and Simulation in the presence of errors
Michael Tarbutt
Centre for Cold Matter, Imperial College London
Searching for new physics with ultracold molecules
Almut Beige
School of Physics and Astronomy at the University of Leeds in the UK
Increasing wave-particle duality
Our community

Our locations
The LKB is located in three different places within the fifth arrondissement of Paris (France).
– The Ecole Normale Supérieure is one of the most prestigious institutions in the world, attracting the brightest students and researchers. Its campus offers a stimulating intellectual environment and fosters academic excellence in many disciplines.
– Sorbonne University, established in 2018 from the merger of Paris-Sorbonne University and Pierre and Marie Curie University, is a multidisciplinary institution in Paris. It offers programs in the humanities, sciences, engineering, and medicine, and is distinguished by its innovative research and involvement in European research and training programs.
– The Collège de France, founded in 1530, has a long tradition of academic excellence. Its campus houses classrooms and lecture theatres steeped in history, providing an inspiring environment for students and researchers.

Our staff
Meet the laboratory members! Our team is mainly composed of young researchers with nearly 60 researchers and teacher-researchers and over 100 PhD students and post-doc. In addition, 25 scientific research support staff contribute to the laboratory’s achievements through their administrative and technical activities.
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Jobs
Find out about recruitment opportunities at Laboratoire Kastler Brossel, a place where knowledge is constantly evolving. Whether you’re a beginner or experienced, join our laboratory!
Consult our job offers