Prof. Guido Pupillo: Cavity-enhanced transport of charge

09.01.2018, 15:00

Speaker: Prof. Guido Pupillo, University of Strasbourg, France
Date and place: 09.01.2018, 15:00, MPL Seminarroom 1st floor
Host: Genes Group

Title: "Cavity-enhanced transport of charge"

Abstract: Strong light-matter interactions are increasingly used to understand and engineer new states of matter in the fields of quantum optics, solid state physics and material science. An emerging topic is the modification of electron transport using external electro-magnetic radiation. In this talk we present results from recent experiments [1] and a proof-of-principle model [2] for the enhancement of charge conductivity in molecular semi-conductors due to the coupling of intra-molecular electronic transitions to the bosonic field of a cavity or of a plasmonic structure prepared in its vacuum state. Light-matter hybridization results in dressed fermionic bands that can provide an enhancement of charge conductivity at room temperature and in the steady-state. We discuss a few open questions and opportunities for vacuum-based quantum science and technology.


[1] "Conductivity in organic semiconductors hybridized with the vacuum field", E. Orgiu et al., Nature Materials 14, 1123-1129 (2015).
[2] "Cavity-enhanced transport of charge", D. Hagenmuller, J. Schachenmayer, S. Schutz, C. Genes, and G. Pupillo, Phys. Rev. Lett. 119, 223601 (2017).