Tunable Fermi-Edge Resonance in an Open Quantum Dot

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dc.creatorAbanin, D. A.
dc.creatorLevitov, L. S.
dc.date2004-05-18
dc.date2004-05-20
dc.date.accessioned2026-07-07T09:31:42Z
dc.date.available2026-07-07T09:31:42Z
dc.descriptionResonant tunneling in an open mesoscopic quantum dot is proposed as a vehicle to realize a tunable Fermi-edge resonance with variable coupling strength. We solve the x-ray edge problem for a generic nonseparable scatterer and apply it to describe tunneling in a quantum dot. The tunneling current power law exponent is linked to the S-matrix of the dot. The control of scattering by varying the dot shape and coupling to the leads allows to explore a wide range of exponents. Transport properties, such as weak localization, mesoscopic conductance fluctuations, and sensitivity to Wigner-Dyson ensemble type, have their replicas in the Fermi-edge singularity.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0405383
dc.identifierhttp://arxiv.org/abs/cond-mat/0405383
dc.identifierPhys. Rev. Lett. 93, 126802 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.126802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158555
dc.subjectMesoscale and Nanoscale Physics
dc.titleTunable Fermi-Edge Resonance in an Open Quantum Dot
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