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Abstract:
We investigate the joint effects of the intralead electron interaction and Coulombic dot-lead interaction on the shot noise of a quantum dot coupled to Luttinger liquid leads. A formula of the shot noise is derived by applying the nonequilibrium Green function technique. The shot noise is enhanced by the dot-lead interaction. For a weak or moderately strong interaction the differential shot noise demonstrates resonant-like behavior as a function of bias and gate voltages. In the limit of strong interaction resonant behavior disappears and the differential shot noise and Fano factor scale as a power law in bias voltage. Under some parameters, the differential shot noise may become negative around resonant peaks, and the physical reason is analyzed. (C) 2013 Elsevier B.V. All rights reserved.
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PHYSICS LETTERS A
ISSN: 0375-9601
Year: 2013
Issue: 31-33
Volume: 377
Page: 1954-1960
2 . 6 0 0
JCR@2022
ESI Discipline: PHYSICS;
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 1
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 8
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