1995/05/23 by Per Fröjdh, Per Frojdh, Henrik Johannesson · 99 citations
Physics and Astronomy · #Boundary conformal field theory #Boundary value problem #Condensed matter physics #Conformal field theory #Conformal map #Effective field theory #Electron #Fermi liquid theory #Impurity #Kondo effect #Kondo model #Luttinger liquid #Magnetic properties of thin films #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Superconductivity #Thermodynamics #cond-mat
paper · pdf · doi:10.1103/physrevlett.75.300
published in Physical Review Letters 75(2), 300-303 (American Physical Society) · 9 pages, REVTeX, uses amsfonts, accepted for publication in Phys. Rev. Lett
arxiv created 1995/05/23 · openalex publication_date 1995/07/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report on exact results for the low-temperature thermodynamics of a spin- (1)/(2) 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 recently proposed by Furusaki and Nagaosa. Suppression of backscattering off the impurity leads to the same critical properties as for the two-channel Kondo effect.