Sylvain de Léséleuc
Team Leader, Cold-Atom Quantum System Research Team
Outline
We invent quantum technologies based on individual atoms manipulated with laser beams. For example, lasers can cool atoms to absolute zero temperature, catch and move them with optical tweezers, excite their electron to giant orbitals… This allows us to exploit the quantum nature of atoms and to build quantum systems atom-by-atom, with a particular aim at realizing a cold-atom-based quantum computer.
Research Theme
・Development of cold-atom quantum computers
・Quantum systems based on cold-atom manipulated with lasers
Representative Research Results
・Y. Chew, T. Tomita, T.P. Mahesh, S. Sugawa, S. de Léséleuc, and K. Ohmori, “Ultrafast energy exchange between two single Rydberg atoms on a nanosecond timescale,”Nature Photonics 16, 724 (2022).
・S. de Léséleuc, V. Lienhard, P. Scholl, D. Barredo, S. Weber, N. Lang, H.P. Buchler, T. Lahaye, and A. Browaeys, “Experimental realization of a symmetry protected topological phase of interacting bosons with Rydberg atoms,” Science 365, 775 (2019)
・D. Barredo, V. Lienhard, S. de Léséleuc, V. Lienhard, T. Lahaye, and A. Browaeys, “Synthetic three-dimensional atomic structures assembled atom by atom.,” Nature 561, 79 (2018)
・S. de Léséleuc, D. Barredo, V. Lienhard, A. Browaeys and T. Lahaye, “Local optical control of the resonant dipole-dipole interaction between Rydberg atoms,” Phys. Rev. Lett. 119, 053202 (2017)
・D. Barredo, S. de Léséleuc, V. Lienhard, T. Lahaye, and A. Browaeys, “An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays,” Science 354, 1021 (2016)
Arrays of single atoms assembled with optical tweezers