Simulation quantique en electrodynamique quantique des circuits

par Sébastien Leger

Projet de thèse en Physique de la Matière Condensée et du Rayonnement

Sous la direction de Olivier Buisson et de Nicolas Roch.

Thèses en préparation à l'Université Grenoble Alpes , dans le cadre de Physique , en partenariat avec Institut Néel (laboratoire) et de Matière Condensée, Matériaux et Fonctions (equipe de recherche) depuis le 31-10-2017 .


  • Résumé

    While the universal quantum computer is a very promising but very demanding route towards quantum computation, quantum simulators appear as a faster approach to quantum speedup. Based on an idea initially suggested by R. Feynman, a quantum simulator is a machine dedicated to a given class of physical problems (e.g. quantum magnetism, fermionic or bosonic Hubbard models...). The required building blocks (qu antum bits) as well as the control electronics are similar to the one of the universal quantum computer but since universality is not required, the overhead developments are less stringent. As such, they are considered as the first architecture, which will allow tackling problems intractable with classical computers.

  • Titre traduit

    Quantum simulation in circuit - QED


  • Résumé

    We are developing quantum simulators based on superconducting quantum bits coupled to microwave photons. This architecture has been dubbed circuit Quantum ElectroDynamics (circuit-QED), for a recent review you can look at [1]. The quantum simulator we demonstrated recently (see figure) aims at unraveling quantum impurity problems, which are integral to the understanding of strongly correlated materials or high-Tc superconductors [2].