STAGE OFFRE DE STAGE: COUPLING ATOMIC ARRAYS TO NANOSCALE WAVEGUIDES: TOWARDS QUANTUM NON-LINEAR OPTICS

Date de mise à jour de l’offre

Laboratoire Kastler Brossel, :

Le Laboratoire Kastler Brossel est un des acteurs majeurs dans le domaine de la physique quantique. Ses thématiques abordent de nombreux aspects depuis les tests fondamentaux de la théorie quantique jusqu’aux applications, couvrant ainsi une large gamme de sujets tels que les gaz quantiques, l’optique et l’information quantiques, les atomes et la lumière dans les milieux denses ou complexes, les tests des interactions fondamentales et la métrologie.

Description de la mission

Deterministic interactions between single photons, i.e. quantum non-linear optics, is a long-standing goal in optical physics, with applications to quantum optics and quantum information science. However, single photons usually do not interact with each other and the interaction needs to be mediated by an atomic system. Enhancing this coupling has been the driving force for a large community over the past two decades. One pioneering approach is known as cavity quantum electrodynamics (CQED), where a single atom and a single photon can be strongly coupled via a high-finesse cavity. Cavity-QED led to a better understanding of fundamental aspects of light-matter interaction and to various seminal demonstrations.







Strong transverse confinement in single-pass nanoscale waveguide recently triggered various investigations for coupling guided light and cold atoms, without a cavity. Specifically, a subwavelength waveguide can provide a large evanescent field that can interact with atoms trapped in the vicinity. An atom close to the surface can absorb a fraction of the guided light as the effective mode area is comparable with the atom cross-section. This emerging field of waveguide-QED promises unique applications to quantum networks, quantum nonlinear optics, and quantum simulation.







The LKB team recently developed an experiment in this direction. Using a nanofiber with a 400-nm diameter and a few thousands atoms trapped around

Profil recherché

Deterministic interactions between single photons, i.e. quantum non-linear optics, is a long-standing goal in optical physics, with applications to quantum optics and quantum information science. However, single photons usually do not interact with each other and the interaction needs to be mediated by an atomic system. Enhancing this coupling has been the driving force for a large community over the past two decades. One pioneering approach is known as cavity quantum electrodynamics (CQED), where a single atom and a single photon can be strongly coupled via a high-finesse cavity. Cavity-QED led to a better understanding of fundamental aspects of light-matter interaction and to various seminal demonstrations.







Strong transverse confinement in single-pass nanoscale waveguide recently triggered various investigations for coupling guided light and cold atoms, without a cavity. Specifically, a subwavelength waveguide can provide a large evanescent field that can interact with atoms

Niveau de qualification requis

Bac + 4/5 et +
  • Employeur
    Laboratoire Kastler Brossel,
  • Secteur d’activité de la structure
    Enseignement - Formation - Recherche
  • Effectif de la structure
    De 51 à 250 salariés
  • Site internet de la structure
    http://www.lkb.upmc.fr/
  • Type de stage ou contrat
    Stage pour lycéens et étudiants en formation initiale
  • Date prévisionnelle de démarrage
  • Durée du stage ou contrat
    Plus de 2 mois et jusqu'à 4 mois
  • Le stage est-il rémunéré ?
    Oui
  • Niveau de qualification requis

    Bac + 4/5 et +
  • Lieu du stage
    Laboratoire Kastler Brossel Campus Pierre et Marie Curie, 13-23 Bureau 221 75252 Paris Cedex 05
    75252 Paris
  • Accès et transports
    RER B luxembourg