Quantum wire hybridized with a single-level impurity

Lerner, Igor V., Yudson, Vladimir I. and Yurkevich, Igor (2008). Quantum wire hybridized with a single-level impurity. Physical Review Letters, 100 (25),


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.

Publication DOI: https://doi.org/10.1103/PhysRevLett.100.256805
Divisions: Engineering & Applied Sciences > Mathematics
Engineering & Applied Sciences > Systems analytics research institute (SARI)
Additional Information: © 2008 The American Physical Society
Full Text Link: http://link.aps ... Lett.100.256805
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2008-06-27
Authors: Lerner, Igor V.
Yudson, Vladimir I.
Yurkevich, Igor ( 0000-0003-1447-8913)



Version: Accepted Version

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