PeopleofSuperintelligence

Researcher

Michel Brune

Also known as M. Brune

Michel Brune is a physicist at the Laboratoire Kastler Brossel whose experiments with cavities and circular Rydberg atoms probe quantum measurement, entanglement and quantum simulation. After studying at the École normale supérieure from 1983 to 1987, he earned a PhD in 1988 under Serge Haroche and defended his habilitation in 2001. Between 1996 and 2007, he coauthored papers on quantum measurement, entanglement in a cavity and quantum jumps of light, and in 1998 he shared the Grand prix Ampère with Jean-Michel Raimond. In 2018, he coauthored a Physical Review X proposal for a quantum simulator of spin-1/2 arrays built from laser-trapped circular Rydberg atoms, and in 2023 he coauthored the first report of such atoms trapped in a programmable array of optical bottle beams. He leads the Rydberg atoms team hosted at the Institut de Physique du Collège de France.

Now at
Kastler Brossel Laboratory
Born
1964

Years link to their sources.

Timeline

  1. 1983–1988

    A PhD under Serge Haroche

    Born in 1964, he studies at the École normale supérieure from 1983 to 1987. In 1988, he defends his PhD under Serge Haroche, with doctoral work on the realization of a two-photon micromaser.

  2. 1996

    Observing a quantum meter decohere

    In 1996, he is first author, with Serge Haroche, Jean-Michel Raimond and colleagues, of the Physical Review Letters paper "Observing the Progressive Decoherence of the "Meter" in a Quantum Measurement".

  3. 1998

    The Grand prix Ampère

    In 1998, he shares the Grand prix Ampère de l'Électricité de France, given by the Académie des sciences, with Jean-Michel Raimond, his colleague in the cavity quantum electrodynamics group of the Kastler-Brossel Laboratory.

  4. 2001

    A review on cavity entanglement

    In 2001, he defends his habilitation. He coauthors with Jean-Michel Raimond and Serge Haroche the Reviews of Modern Physics article "Manipulating quantum entanglement with atoms and photons in a cavity".

  5. 2007

    Quantum jumps of light

    In 2007, Nature publishes "Quantum jumps of light recording the birth and death of a photon in a cavity", by Sébastien Gleyzes and eight coauthors, among them Michel Brune, Jean-Michel Raimond and Serge Haroche. Microwave photons stored in a superconducting cavity are probed by a stream of atoms, and the signals record the birth, life and death of individual photons.

  6. 2018

    A circular-atom quantum simulator

    In 2018, he coauthors in Physical Review X, with Jean-Michel Raimond, Clément Sayrin, Serge Haroche and colleagues, a proposal for quantum simulation of spin-1/2 arrays with laser-trapped circular Rydberg atoms. The authors expect trapping lifetimes in the minute range.

  7. 2023–2024

    Trapping circular Rydberg atoms

    In 2023, he coauthors a Physical Review Letters paper reporting the first laser-trapping of circular Rydberg atoms in a programmable array of optical bottle beams. In April 2024, he and Jean Dalibard organize the Collège de France colloquium "Atomes de Rydberg et simulation quantique". In 2024, he is also a CNRS director of research, a part-time professor at École Polytechnique and director of the Jung Team Incubator at the Physics Institute of the Collège de France.

  8. As of October 2026

    Leading the Rydberg atoms team

    He leads the Rydberg atoms team of Laboratoire Kastler Brossel, hosted at the Institut de Physique du Collège de France. Created by Serge Haroche and formerly named cavity quantum electrodynamics, the team studies quantum physics with circular Rydberg atoms.

Career

  1. NowKastler Brossel LaboratoryRydberg Atoms Team Leader
  2. CNRSDirector of Research
  3. École PolytechniquePart-time Professor
  4. Collège de FranceDirector of the Jung Team Incubator

Education

  1. 1987École Normale Supérieure

From the biography.

  1. The company share of AI researchers’ top papers was 31% in 2020–2024 and 8% in 1970–1974Includes CNRS. We estimate where the people shaping AI worked when their most-cited papers appeared: the company share was 31% in 2020–2024 and 8% in 1970–1974, and Google led all organizations in 2020–2024.
  2. Universities keep AI researchers for a median of 6 years, compared with 2 years at frontier labsIncludes CNRS. Across 15,811 dated work stays (6,529 people), median role tenure runs from 6 years at universities to 2 years at frontier labs. We compare all five organization types, starting decades from the 1970s to the 2020s, and the organizations that keep people longest.
  3. The median h-index is 48 at universities and 14 at frontier AI labsIncludes École Polytechnique. The median h-index is 48 at universities and 14 at frontier AI labs. We compare publishing careers, recent citations, dual appointments and job moves across 2,420 university researchers and 308 frontier-lab researchers.
  4. People shaping AI work at a median of 3 organizations over a career: 3 for university starters and institute and lab starters, versus 2 for company startersIncludes CNRS. Across 6,853 people shaping AI with a dated work role, we estimate a median of 3 parent organizations over a career (mean 3.6), comparing role groups, starting sectors and starting decades from the 1950s to 2020–2026.

Sources and credits

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  1. 3月10日 Michel Brune：Circular Rydberg Atoms for quantum simulations kjc.ecnu.edu.cn. Checked 21 October 2026.
  2. Brune Michel - Teaching & Learning Center polytechnique.edu. Checked 21 October 2026.
  3. Jean-Michel Raimond - Wikipedia en.wikipedia.org. Checked 21 October 2026.
  4. [quant-ph/0612031] Quantum jumps of light recording the birth and death of a photon in a cavity arxiv.org. Checked 21 October 2026.
  5. [1707.04397] Towards quantum simulation with circular Rydberg atoms arxiv.org. Checked 21 October 2026.
  6. [2304.04831] Array of Individual Circular Rydberg Atoms Trapped in Optical Tweezers arxiv.org. Checked 21 October 2026.
  7. Atomes de Rydberg et simulation quantique | Collège de France college-de-france.fr. Checked 21 October 2026.
  8. Laboratoire Kastler Brossel (LKB) | Collège de France college-de-france.fr. Checked 21 October 2026.