TY - JOUR
T1 - Steps and dips in the ac conductance and noise of mesoscopic structures
AU - Entin-Wohlman, O.
AU - Imry, Y.
AU - Gurvitz, S. A.
AU - Aharony, A.
PY - 2007/5/17
Y1 - 2007/5/17
N2 - The frequency dependence of the equilibrium ac conductance (or the noise power spectrum) through a mesoscopic structure is shown to exhibit steps and dips. The steps, at energies related to the resonances of the structure, are closely related to the partial Friedel phases of these resonances, thus allowing a direct measurement of these phases (without interferometry). The dips in the spectrum are related to a destructive interference in the absorption of energy by transitions between these resonances, in some similarity with the Fano effect.
AB - The frequency dependence of the equilibrium ac conductance (or the noise power spectrum) through a mesoscopic structure is shown to exhibit steps and dips. The steps, at energies related to the resonances of the structure, are closely related to the partial Friedel phases of these resonances, thus allowing a direct measurement of these phases (without interferometry). The dips in the spectrum are related to a destructive interference in the absorption of energy by transitions between these resonances, in some similarity with the Fano effect.
UR - http://www.scopus.com/inward/record.url?scp=34347336553&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.75.193308
DO - 10.1103/PhysRevB.75.193308
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AN - SCOPUS:34347336553
SN - 1098-0121
VL - 75
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 19
M1 - 193308
ER -