Nonlocal resonant interaction between coupled quantum wires

Morimoto, T.; Iwase, Y.; Aoki, N.; Sasaki, T.; Ochiai, Y.; Shailos, A.; Bird, J. P.; Lilly, M. P.; Reno, J. L.; Simmons, J. A.
June 2003
Applied Physics Letters;6/2/2003, Vol. 82 Issue 22, p3952
Academic Journal
We study the transport in a system of coupled quantum wires and show evidence for a resonant interaction that occurs whenever one of them is biased close to pinch off. Measuring the conductance of one of the wires, as the width of the other is varied, we observe a resonant peak in the conductance that is correlated to the point at which the other wire pinches off. The origin of this interaction remains undetermined at present, although its characteristics appear consistent with predictions that a correlated many-body state should form in narrow wires as their conductance vanishes. © 2003 American Institute of Physics.


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