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.
@article{arxiv.cond-mat/0502049,
title = {Shot noise reduction in quantum wires with "0.7 structure"},
author = {A. Ramsak and J. H. Jefferson},
journal= {arXiv preprint arXiv:cond-mat/0502049},
year = {2009}
}
Comments
minor changes; to appear in Phys. Rev. B, Rapid. Comm. (2005)