Friday, January 25, 2013

1301.5709 (Jongbae Hong)

Mesoscopic Transport of Entangled and Nonentangled Kondo Singlets under
Bias
   [PDF]

Jongbae Hong
The tunneling conductances of a quantum point contact and a magnetized atom adsorbed on an insulating layer above a metallic substrate are obtained by considering the coherent transport of the entangled and nonentangled Kondo singlets, and these are compared with the experimental results. Spins of the entangled Kondo singlet flow unidirectionally in a sequential up-and-down manner. This transport does not follow linear response theory. The nonentangled Kondo singlet performs resonant tunneling through a coherent transport channel and yields coherent side peaks at a finite bias. The coherent transport channel is formed by two electron reservoirs within a coherent region.
View original: http://arxiv.org/abs/1301.5709

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