Majulab Seminar – Many-body physics with arrays of individual atoms and optical dipoles

Majulab Seminar – 6 May

Thursday 6 May, 3:30PM (SG Time) / 9:30AM (FR Time).


Antoine Browaeys – Many-body physics with arrays of individual atoms and optical dipoles

Online via Zoom, registration is required. Please register at:

The link to the webinar will be sent by email to participants.
Please note that photographs and videos may be taken during the event for news and publicity purposes.

Antoine Browaeys is a senior staff Scientist at CNRS. He studied at the
Ecole Normale Supérieure in Cachan (France) and did his ph’D under
Alain Aspect at the Institut d’Optique (2000) on the cooling and
magnetic trapping of a gas of metastable Helium, that led to the first
Bose-Einstein condensation of this element. He spent two years at
NIST in the Laser Cooling group led by W.D. Phillips, working on Bose-
Einstein. He was hired as a scientist at CNRS in 2003 in the group of
Philippe Grangier. Since 2010 he is leading his own team at the Institut
d’Optique. He is now working on experiments manipulating individual
cold atoms and small, dense atomic clouds. By controlling the dipole-
dipole interactions between the atoms in these systems, he explores
many-body physics questions related to quantum magnetism, synthetic
topological matter, or the scattering of near resonant light for
applications to quantum technologies.

Many-body physics with arrays of individual atoms and optical dipoles

This talk will present our effort to control and use the dipole-dipole interactions between cold atoms in order to implement spin Hamiltonians useful for quantum simulation of condensed matter or quantum optics situations. We trap individual atoms in arrays of optical tweezers separated by a few micrometers. We create almost arbitrary geometries of the atomic arrays in two and three dimensions up to about 200 atoms. To make the atoms interact, we either excite them to Rydberg states or induce optical dipoles with a near-resonance laser. Using this platform, we have in particular explored quantum magnetism, topological synthetic quantum matter, and a new light-matter interface.