Functional renormalization group for Luttinger liquids with impurities
نویسندگان
چکیده
منابع مشابه
Functional Renormalization-Group Analysis of Luttinger Liquids with Impurities
In one-dimensional quantum wires the interplay of electron correlations and impurities strongly influences the low-energy physics. The diversity of energy scales and the competition of correlations in interacting Fermi systems can be treated very efficiently with the functional renormalization group (fRG), describing the gradual evolution from a microscopic model Hamiltonian to the effective lo...
متن کاملFermionic renormalization group methods for transport through inhomogeneous Luttinger liquids
We compare two fermionic renormalization group methods which have been used to investigate the electronic transport properties of one-dimensional metals with twoparticle interaction (Luttinger liquids) and local inhomogeneities. The first one is a poor man’s method setup to resum “leading-log” divergences of the effective transmission at the Fermi momentum. Generically the resulting equations c...
متن کامل- Luttinger model with impurities
We study the Tomonaga-Luttinger model in the presence of magnetic (Kondo-like) impurities. By using a recently proposed field-theoretical approach to non-local bosonization we obtain the effective action describing the low-energy charge and spin density fluctuations. From this action the dispersion relations of the collective modes are readily found. We also compute the momentum distribution an...
متن کاملRenormalization Group and Asymptotic Spin–Charge separation for Chiral Luttinger liquids
The phenomenon of Spin-Charge separation in non-Fermi liquids is well understood only in certain solvable d = 1 fermionic systems. In this paper we furnish the first example of asymptotic Spin-Charge separation in a d = 1 non solvable model. This goal is achieved using Renormalization Group approach combined with Ward-Identities and Schwinger-Dyson equations, corrected by the presence of a band...
متن کاملLuttinger Revisted-the Renormalization Group Approach
Luttinger's contributions abound in different parts of many-body physics. Here I review the ones that appear when one uses the Renormalization Group (RG) to study the subject: the Luttinger Liquid, Luttinger's Theorem (on the volume of the Fermi surface) and the Kohn-Luttinger Theorem on the superconducting instability of all metals as one approaches absolute zero.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2004
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.70.075102