Quantum Wire Hybridized with a Single-Level Impurity

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dc.creatorLerner, Igor V.
dc.creatorYudson, Vladimir I.
dc.creatorYurkevich, Igor V.
dc.date2007-11-30
dc.date2008-07-10
dc.date.accessioned2026-07-07T13:09:09Z
dc.date.available2026-07-07T13:09:09Z
dc.descriptionWe have studied low-temperature properties of interacting electrons in a one-dimensional quantum wire (Luttinger liquid) side-hybridized with a single-level impurity. The hybridization induces a back-scattering of electrons in the wire which strongly affects its low energy properties. Using a one-loop renormalization group approach valid for a weak electron-electron interaction, we have calculated a transmission coefficient through the wire, $\mathcal{T}(\varepsilon)$, and a local density of states, $ν(\varepsilon)$ at low energies $\varepsilon $. In particular, we have found that the antiresonance in $\mathcal{T}(\varepsilon)$ has a generalized Breit-Wigner shape with the effective width $Γ(\varepsilon)$ which diverges at the Fermi level.
dc.description4 pages, 1 figure; final version as published
dc.identifierhttps://arxiv.org/abs/0711.4919
dc.identifierhttp://arxiv.org/abs/0711.4919
dc.identifierPhys. Rev. Lett. 100, 256805 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.256805
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228642
dc.subjectStrongly Correlated Electrons
dc.titleQuantum Wire Hybridized with a Single-Level Impurity
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