Spin dynamics and quantum optics with self-assembled quantum dots

Quantum dots are nanometre-sized solids in which complete motional quantisation leads to a discrete energy level structure - allowed energy levels for electrons separated by forbidden energy gaps. In this sense they can be considered to be artificial atoms in the solid state.

However, unlike real atoms, voltage probes can be attached to individual quantum dots allowing them to be controlled and measured. Furthermore, by controllably bringing two quantum dots close to each other, artificial molecules can be formed with molecular-like coupled quantum states. The interactions between the spins of isolated charge carriers trapped in such artificial atoms and molecules are currently of strong fundamental interest due to the potential they may provide to prepare, manipulate and readout quantum superposition states in solids. Besides fundamental studies of spin-spin interactions in nano- and mesoscopic solids, such quantum states have strong potential for applications in quantum information science.

 

Recent Publications:

Group members working on these topics:

Tobias Simmet, Lukas Hanschke, Anna Nolinder, William Rauhaus, Theresa Grünleitner, Friedrich Sbresny, Kai Müller, Jonathan Finley

 

Collaborations

  • Nikolai Sinitsyn (Los Alamos National Laboratory)
  • Pawel Machnikowski (U. Wroclaw)
  • Hubert Krenner (U. Augsburg)
  • Maurice Skolnick (U. Sheffield)

 

Funding:

We gratefully acknowledge funding from the Nanosystems Initiative Munich (NIM).

TUM Technische Universität München TUM Technische Universität München Physik Department Elektrotechnik und Informationstechnik TUM Technische Universität München
 

Events & News

17 Jan 2018

ERC Consolidator Grant for Gregor Koblmüller   more

16 Jan 2018

Light-steering of spin-polarized currents in topological insulators   more

10 Aug 2017

Best Poster Awards for Ganpath Veerabathran and Alexander Andrejew at iNOW 2017   more

27 Jun 2017

Best Poster Award at Nanowire Week for Jochen Bissinger   more

15 Mar 2017

Dr. Kai Müller admitted to the “Junges Kolleg” of the Bavarian Academy of Sciences   more

Seminars

March 12, 2018

Two-dimensional coherent spectroscopy of a semiconductor microcavity   more

March 05, 2018

Diamond-organic photovoltaics   more