Quantum Coherence Lab

Zumbühl Group


News from our Group

Prof. Carlos Egues gave a talk on many-body localization

Prof. Carlos Egues, Sao Paulo University, Brazil, is currently visiting the group this week and just gave a special seminar about "Many-body localization in a central spin model". Thanks very much for giving a very interesting talk on a topic which we enjoyed very much to learn more about...

Read more

Prof. Catalina Marinescu gave talk on spin-orbit quantum corrections

Prof. Catalina Marinescu, Clemson University, USA, gave a special seminar about "Localization in Spin-Orbit Coupled Electron Systems". Thanks for giving a very nice paedagogical presentation, from the basics of weak-localization physics to the new, break-through result: analytical closed-form solution for general Rashba-Dresselhaus coupled semiconductor quantum wells, as presented in our PRL112, 156601 (Apr 2019)

Read more

QUSTEC call for PhD students

Call open for 39 doctoral fellowships on Quantum Science and Technologies on EUCOR -- The European Campus through MSCA COFUND H2020 Trinational Doctoral Program.

Apply now, call closes Aug 19, 2019.

More information https://www.eucor-uni.org/en/qustec/application-information/apply/


Read more

Published in Carbon: "Characterization of hydrogen plasma defined graphene edges"

Our international team characterizes the quality of remote hydrogen plasma defined graphene edges by Raman spectroscopy, atomic resolution AFM and low temperature electronic transport measurements. For graphene on hBN, the edge is ~40% zigzag and ~60% armchair-30 degree segments, while overall running in the zigzag direction. Rehmann, Kalyoncu et al., Carbon 150, 417 (May 24, 2019).

Read more

Published in Phys. Rev. Letters: "Spectroscopy of Quantum-Dot Orbitals with In-Plane B-Fields"

Riken-UCSB-Basel collaboration extracts full 3D-confinement parameters and in-plane orientation of the single-electron quantum orbitals of a GaAs gate-defined dot with sub-nm precision. This is a versatile tool for quantum dots with one dominant axis of strong con finement. Camenzind, Yu et al., Phys. Rev. Lett. 122, 207701 (May 22, 2019). Editors' Suggestion and featured with viewpoint in Physics. See also UniNews.

Read more