Universal phase lapses in a noninteracting model

Details Universal phase lapses in a noninteracting model Universal phase lapses in a noninteracting model

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007njph....9..122o&link_type=abstract

New Journal of Physics, Volume 9, Issue 5, pp. 122 (2007).

Physics

11

Scientific paper

We calculate the transmission probability and phase through a quantum dot using a noninteracting toy model consisting of a ladder of narrow levels and a wide level. We find that the interference of the electron waves transmitted through such a dot induce universal phase lapses between consecutive peaks. The reason for this universality can be related to a Fano-type interference pattern and is explained in a simple analytic analysis of the model. Temperature effects and possible relevance of the model to interacting systems are discussed towards the end of the paper.

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