Shot noise reduction in quantum wires with "0.7 structure"

Details Shot noise reduction in quantum wires with "0.7 structure" Shot noise reduction in quantum wires with "0.7 structure"

2005-02-02

arxiv.org/abs/cond-mat/0502049v2

Phys. Rev. B 71, 161311(R) (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

minor changes; to appear in Phys. Rev. B, Rapid. Comm. (2005)

Scientific paper

10.1103/PhysRevB.71.161311

Shot noise reduction in quantum wires is interpreted within the model for the ''0.7 structure'' in the conductance of near perfect quantum wires [T. Rejec, A. Ramsak, and J.H. Jefferson, Phys. Rev. B 62, 12985 (2000)]. It is shown how the Fano factor structure is related to the specific structure of the conductance as a consequence of the singlet--triplet nature of the resonances with the probability ratio 1:3. An additional feature in the Fano factor, related to the ''0.25 structure'' in conductance, is predicted.

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