Electron transport through double quantum dots

Electron transport experiments on two lateral quantum dots coupled in series are reviewed. An introduction to the charge stability diagram is given in terms of the electrochemical potentials of both dots. Resonant tunneling experiments show that the double dot geometry allows for an accurate determination of the intrinsic lifetime of discrete energy states in quantum dots. The evolution of discrete energy levels in magnetic field is studied. The resolution allows one to resolve avoided crossings in the spectrum of a quantum dot. With microwave spectroscopy it is possible to probe the transition from ionic bonding (for weak interdot tunnel coupling) to covalent bonding (for strong interdot tunnel coupling) in a…

• EC
  European Commission
• DA
  Deutscher Akademischer Austauschdienst
• MO
  Ministry of Education, Culture, Sports, Science and Technology

  Award: CREST
• DA
  Defense Advanced Research Projects Agency
• CR
  Core Research for Evolutional Science and Technology