Main achievements in Physics
I have performed an experimental PhD on superconducting quantum bits
(Saclay, France, 1999-2002). This work led to the
first superconducting quantum bit prototype with a lifetime of the order of a
microsecond [Science 296, 886
(2002)]. After my thesis, I became a theorist of hybrid mesoscopic electronic
circuits. I was a post-doc in Basel, Switzerland (2002-2005), and then
Paris (2005-2008), working on spin
dependent transport in quantum dots as well as superconducting and ferromagnetic
proximity effects in hybrid diffusive structures. Highlights from this
period include the discovery of a spin transistor effect in carbon nanotubes
[Nature Phys. 1, 99 (2005)], a
prediction of positive current cross-correlations in quantum dot circuits
[Phys. Rev. Lett. 92, 206801 (2004)
/ Phys. Rev. B 70, 115315 (2004)],
which was realized experimentally in 2007 in the group of C. Marcus (in Harvard
at that time), and the development of spin-dependent boundary conditions for
quasi-classical superconductivity [Phys. Rev. B 72, 180503(R) (2005) / Phys. Rev. B 80,
184511 (2009)]. Since my arrival at the Laboratoire
Pierre Aigrain of ENS-Paris, I have mainly focused on
the development of Mesoscopic Quantum Electrodynamics (or Cavity Quantum
Electrodynamics with hybrid nanocircuits) together
with the experimental "Hybrid
Quantum Circuits" team of Takis Kontos. The results of this collaboration include the
observation of a coherent spin/photon coupling at the single spin level [Science
349, 6246 (2015)], photon-emission
by a quantum dot/superconductor junction [Phys. Rev. X, 6, 021014 (2016)] and
the freezing
of the charge dynamics in a Kondo impurity [Nature 545, 71 (2017)]. I am presently working on the superconducting
proximity effect in Weyl semimetals and the quantum detection of Dark Matter.
Links
My publication list can be accessed at:
Google scholar Web of Science Orcid
PhD Thesis: Implementation
of a quantum bit in a superconducting circuit, Université Paris VI, 2002.
HDR Thesis: Hybrid Quantum Circuits, Ecole Normale Supérieure de Paris,
2017.
Interview in the podcast [DECODE Quantum] by Fanny Bouton et
Olivier Ezratty (in french,
14/12/2023)