Quantum optics of nano-conductors

Quantum electrodynamics describes the interaction of light and matter. It has been explored with unprecedented accuracy for atoms in optical cavities but lately also in solid state devices with artificial atoms.  A similar level of accuracy has been achieved in controlling charge transfer through  nano-conductors down to single charge quanta. Recently, activities started to combine these previously basically distinct fields, thus  exploring the quantum optics of mesoscopic conductors.

Our group has provided in collaboration with world-leading experimental teams pioneering contributions for the situation, where Cooper pair tunneling through Josephson junctions drives microwave cavities. The strong coupling between charge and light leads to strong feedback effects that can be used to design new sources for non-classical light, e.g., for single photons or entangled photon pairs.  Josephson photonics has turned out to be a fascinating playground for theoretical and technological developments.

Related Work


3.
default
Rolland, C.; Peugeot, A.; Dambach, S.; Westig, M.; Kubala, B,; Altimiras, C.; le Sueur, H.; Joyez, P.; Vion, D.; Roche, P.; Esteve, D.; Ankerhold, J.; Portier, F.
Antibunched photons emitted by a dc biased Josephson junction
2018
submitted
2.
default
Westig, M.; Kubala, B.; Parlavecchio, O.; Mukharsky, Y.; Altimiras, C.; Joyez, P.; Vion, D.; Roche, P.; Esteve, D.; Hofheinz, M.; Trif, M.; Simon, P.; Ankerhold, J.; Portier, F.
Emission of Nonclassical Radiation by Inelastic Cooper Pair Tunneling
Phys. Rev. Lett., 119:137001
2017
1.
default
Gramich, Vera; Kubala, Björn; Rohrer, Selina; Ankerhold, Joachim
From Coulomb-Blockade to Nonlinear Quantum Dynamics in a Superconducting Circuit with a Resonator
Phys. Rev. Lett., 111:247002
2013
Export as: BibTeX, XML

Institute for complex quantum systems

N25, 4th. floor
Albert-Einstein-Allee 11
D-89069 Ulm

☎   +49 731 50 22830
FAX +49 731 50 22839
MAILnawi.icq(at)uni-ulm.de
DirectorProf. Dr. Joachim Ankerhold