Objectif Boson gases confined in lattices present fundamental properties which strongly depart from their 3D counterparts. A notorious example is the honeycomb lattice, whose geometry results in massless Dirac-like states. By engineering the phase picked by the particles when tunneling from site to site, lattices also allow for the generation of artificial gauge fields. They result in very strong effective magnetic fields, opening the way to the observation of new quantum Hall regimes in neutral particles. In this context, polaritons appear as an excellent platform for the study of boson fluid effects in confined geometries. Polaritons are two-dimensional half-light/half-matter quasi-particles arising from the strong coupling between quantum well excitons and photons confined in a semiconductor microcavity. They are fully accessible by optical means and present strong non-linear properties. In this project, I will fabricate polariton microsstructures to study mesoscopic physics in 2D lattics.I will start by studying the non-linear Josephson dynamics in coupled micropillars, and engineer a double tunneling structure showing single polariton blockade. I will then fabricate a graphene-like honeycomb lattice, where I will study transport phenomena such as anomalous (Klein) tunneling and antilocalisation in the presence of disorder, phenomena originating from the Dirac-cone characteristic of honeycomb lattices. In the high density regime, I will investigate non-linear effects, and address the question of superfluidity of massless Dirac particles.Finally, I will undertake the realization of artificial gauge fields for polaritons. I will adapt to the polariton case a recent theoretical proposal to create artificial gauges in photons using coupled microdisks. Our results will have strong impact on current studies on the transport properties of graphene, of boson gases in atomic condensates, and also on the design of photonic systems with topological protection from disorder. Champ scientifique engineering and technologynanotechnologynano-materialstwo-dimensional nanostructuresgraphenenatural sciencesphysical sciencescondensed matter physicsmesoscopic physicsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivitynatural sciencesmathematicspure mathematicsgeometrynatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) ERC-SG-PE3 - ERC Starting Grant - Condensed matter physics Appel à propositions ERC-2013-StG Voir d’autres projets de cet appel Régime de financement ERC-SG - ERC Starting Grant Institution d’accueil CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Contribution de l’UE € 1 499 950,00 Adresse RUE MICHEL ANGE 3 75794 Paris France Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Contact administratif Françoise Paillous (Mrs.) Chercheur principal Alberto Amo Garcia (Dr.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS France Contribution de l’UE € 1 499 950,00 Adresse RUE MICHEL ANGE 3 75794 Paris Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Contact administratif Françoise Paillous (Mrs.) Chercheur principal Alberto Amo Garcia (Dr.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
