Yi, Juyeon and Cuniberti, Gianaurelio and Porto, Markus (2003) Transmittance anomalies of a ring with lead-positional asymmetry. European Physical Journal B 33, pp. 221-225.
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Other URL: http://dx.doi.org/10.1140/epjb/e2003-00160-1
We examine the anomalous behavior of the transmittance through a one-dimensional ring having two branches of different lengths, as determined by the lead positions. Jumps in the transmittance phase are occurring in correspondence to both (a) zeros in the transmission at the eigenstates of the isolated ring and (b) destructive interference events. It is also found that when the ratio of the branch lengths is given by satisfying mod, the two characteristic zeros merge into a single point and the transmittance phase becomes identical to the so-called Friedel phase.
|Institutions:||Physics > Institute of Theroretical Physics > Retired Professors > Group Gianaurelio Cuniberti|
|Projects:||Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht, Volkswagen Stiftung: Molecular Computing|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 21:00|