Quantum Wire Hybridized With a Single-Level Impurity

Igor Lerner, VI Yudson, Igor Yurkevich

Research output: Contribution to journalArticle

30 Citations (Scopus)


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
JournalPhysical Review Letters
Issue number25
Early online date1 Jun 2008
Publication statusPublished - 1 Jun 2008


Dive into the research topics of 'Quantum Wire Hybridized With a Single-Level Impurity'. Together they form a unique fingerprint.

Cite this