wire
dot
200 nm
VpR
VpL
dot
Vsd
IDR
〜
Kondo valley
  (odd M)
N
M
Kondo ON
(even N)
Kondo OFF
(odd N)
Spin correlation in a double quantum dot-quantum wire coupled system
IDR
The Kondo effect in one dot is non-locally switched off when the other dot has an odd number, N, of electrons and spin 1/2.
Device structure
Possible mechanisms:
l RKKY interaction between the localized spins
l Modulation of the local density of states in the wire region by the Fano-Kondo anti resonance