Quantum technology – Quantum information with advanced condensed matter systems – Optomechanics


Daniel Garcia

Quantum optomechanics and electromechanics is a fast growing field with promising applications in quantum information. This project aims to develop a novel quantum electromechanical device capable of obtaining full quantum control of a macroscopic mechanical resonator by integrating a phononic microcavity with a superconducting transmon qubit. We expect to achieve a very strong qubit-phonon coupling coefficient that will allow the realization of any quantum unitary operation on the phononic mode. This will have important applications in quantum information and quantum sensing. In addition this project opens the route to test the relevance of the quantum mechanics to the macroscopic world.


Caption : Micropillar superlattice cavity, C. Lagoin, et al. PRB 99, 060101 (2019)



  • ENS Lyon: Benjamin Huard and Audrey Bienfait.
  • Collège de France: Çağlar Girit



  • ANR JCJC, Realizing arbitrary quantum operations on a mechanical oscillator.
  • Sirteq, Real time control system for hybrid circuit QED electromechanical experiments.
  • Sirteq, Paris Centre low temperature platform for quantum technologies.



  • Camille Lagoin, Bernard Perrin, Paola Atkinson, Daniel Garcia-Sanchez. High spectral resolution of GaAs/AlAs phononic cavities by subharmonic resonant pump-probe excitation. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 99 (6), ⟨10.1103/PhysRevB.99.060101⟩. ⟨hal-02096499⟩
  • Daniel Garcia-Sanchez, Samuel Déleglise, Jean-Louis Thomas, Paola Atkinson, Camille Lagoin, et al.. Acoustic confinement in superlattice cavities. Physical Review A, American Physical Society, 2016, 94, pp.033813. ⟨10.1103/PhysRevA.94.033813⟩. ⟨hal-01402501⟩