Doped Kondo chain, a heavy Luttinger liquid
نویسندگان
چکیده
منابع مشابه
Dynamics of a heavy particle in a Luttinger liquid.
We study the dynamics of a heavy particle of mass M moving in a one-dimensional repulsively interacting Fermi gas. The Fermi gas is described using the Luttinger model and bosonization. By transforming to a frame comoving with the heavy particle, we map the model onto a generalized ‘‘quantum impurity problem.’’ A renormalization-group calculation reveals a crossover from strong to weak coupling...
متن کاملKondo Impurities Coupled to Helical Luttinger Liquid: RKKY-Kondo Physics Revisited
We show that the paradigmatic Ruderman–Kittel–Kasuya–Yosida (RKKY) description of two local magnetic moments coupled to propagating electrons breaks down in helical Luttinger Liquids when the electron interaction is stronger than some critical value. In this novel regime, the Kondo effect overwhelms the RKKY interaction over all macroscopic inter-impurity distances. This phenomenon is a direct ...
متن کاملDoped spin liquid: Luttinger sum rule and low temperature order.
We analyze a model of two-leg Hubbard ladders weakly coupled by interladder tunneling. At half filling a semimetallic state with small Fermi pockets is induced beyond a threshold tunneling strength. The sign changes in the single electron Green's function relevant for the Luttinger sum rule now take place at surfaces with both zeros and infinities with important consequences for the interpretat...
متن کاملA unified framework for the Kondo problem and for an impurity in a Luttinger liquid
We develop a unified theoretical framework for the anisotropic Kondo model and the boundary sine-Gordon model. They are both boundary integrable quantum field theories with a quantum-group spin at the boundary which takes values, respectively, in standard or cyclic representations of the quantum group SU(2)q. This unification is powerful, and allows us to find new results for both models. For t...
متن کاملKondo effect in a Luttinger liquid: Exact results from conformal field theory.
We report on exact results for the low-temperature thermodynamics of a spin-12 magnetic impurity coupled to a one-dimensional interacting electron system. By using boundary conformal field theory, we show that there are only two types of critical behaviors consistent with the symmetries of the problem: either a local Fermi liquid, or a theory with an anomalous response identical to that recentl...
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: Proceedings of the National Academy of Sciences
سال: 2018
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1719374115