IFIMAC+ICMM Joint Seminar Series focuses on cutting-edge research on condensed matter physics, bringing speakers from all over the world to our Cantoblanco Campus. All talks are streamed online. Some of them will be celebrated on campus and onsite participation will also be possible. You need to subscribe to our mailing list at the link provided below to get the links to the seminar room. https://listas-correo.uam.es/sympa/subscribe/seminarios-ifimac-icmm-l

Andreas Hüttel, Institute for Experimental and Applied Physics, University of Regensburg, Germany

October 21, 2021, 12:00 CEST

Quantum devices and quantum materials: Single nanotube mechanics and quantum electronics

Single wall carbon nanotubes are in many respects an outstanding model system. From transport spectroscopy, ferromagnet/superconductor-nanotube hybrid devices, and nano-electromechanics all the way to microwave optomechanics, the work of my group covers by now a wide range of topics. I intend to present a select number of recent highlights.

In particular, by placing a vibrating carbon nanotube next to a superconducting coplanar microwave resonator at cryogenic temperature, one obtains a fundamentally new microwave optomechanical system. Electronic tunneling through well-defined quantum states dominates its behaviour. We have demonstrated a strongly enhanced, gate-controllable optomechanical coupling. With this, the manipulation of a carbon nanotube at the quantum limit of motion enters technological reach.