RIKEN Center for Quantum Computing Cold-Atom Quantum System Research Team

Team Leader: Sylvain de Leseleuc (Ph.D.)

Japanese Page

Research Summary

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.

Main Research Fields

Interdisciplinary Science & Engineering

Related Research Fields

Mathematical & Physical Sciences
Atomic/Molecular/Quantum electronics

Keywords

Cold atoms
Quantum physics
Quantum optics
Quantum computer
Photonics

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

1. *H. Hwang, A. Byun, J. Park, S. de Léséleuc and J. Ahn.:
"Optical tweezers throw and catch single atoms"
Optica 10, 401 (2023).
2. *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"
Nat. Photonics 16, 724 (2022).
3. *S. de Léséleuc, V. Lienhard, P. Scholl, D. Barredo, S. Weber, N. Lang, H.P. Buchler, T. Lahaye, and A. Browaeys.:
"Observation of a symmetry protected topological phase of interacting bosons with Rydberg atoms"
Science 365, 775 (2019).
4. *D. Barredo, V. Lienhard, S. de Léséleuc, T. Lahaye and A. Browaeys.:
"Synthetic three-dimensional atomic structures assembled atom by atom"
Nature 561, 79 (2018).
5. *S. de Léséleuc, D. Barredo, V. Lienhard, A. Browaeys and T. Lahaye.:
"Analysis of imperfections in the coherent optical excitation of single atoms to Rydberg states"
Phys. Rev. A 97, 053803 (2018).
6. *S. de Léséleuc, S. Weber, V. Lienhard, D. Barredo, H.P. Buchler, T. Lahaye, and A. Browaeys.:
"Accurate mapping of multilevel Rydberg atoms on interacting spin-1/2 particles for the quantum simulation of Ising models"
Phys. Rev. Lett. 120, 113602 (2018).
7. *S. de Léséleuc, D. Barredo, V. Lienhard, A. Browaeys and T. Lahaye.:
"Optical control of the resonant dipole-dipole interaction between Rydberg atoms"
Phys. Rev. Lett. 119, 053202 (2017).
8. *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).

Lab Members

Principal investigator

Sylvain de Leseleuc: Team Leader

Contact Information

Email: Email: sylvain.deleseleuc [at] riken.jp