The sought-after exotic two-channel Kondo effect has now been observed in quantum dots. This effect, where electrons in two electrodes are entangled with each other through their interaction with a single localized spin in a quantum dot, has so far been difficult to observe, as unlike the conventional Kondo effect, this new effect cannot be described within the conventional picture for electron behaviour of Fermi liquids.
- R. M. Potok
- I. G. Rau
- D. Goldhaber-Gordon
