Quantum wire hybridized with a single-level impurity

Igor V. Lerner, Vladimir I. Yudson, Igor Yurkevich

    Research output: Contribution to journalArticlepeer-review


    We 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 backscattering 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, T(epsilon), and a local density of states, nu(epsilon) at low energies epsilon. In particular, we have found that the antiresonance in T(epsilon) has a generalized Breit-Wigner shape with the effective width Gamma(epsilon) which diverges at the Fermi level.
    Original languageEnglish
    Article number256805
    Number of pages4
    JournalPhysical Review Letters
    Issue number25
    Publication statusPublished - 27 Jun 2008

    Bibliographical note

    © 2008 The American Physical Society


    Dive into the research topics of 'Quantum wire hybridized with a single-level impurity'. Together they form a unique fingerprint.

    Cite this