منابع مشابه
Magnetic Impurity in a Luttinger Liquid : A Conformal Field Theory
We study the low-temperature properties of a spin-1 2 magnetic impurity coupled to a one-dimensional interacting electron system. Using the newly developed formalism by AAeck and Ludwig, with a scale invariant boundary condition replacing the impurity, we exploit boundary conformal eld theory to deduce the impurity thermal and magnetic response. In the case of only forward electron scattering o...
متن کاملMagnetic Impurity in a Luttinger Liquid : A
Exact results are reported for the low-temperature thermodynamics of a spin-1 2 magnetic impurity coupled to a 1D interacting electron system. The use of conformal eld theory techniques reveals that there are only two types of critical behaviors consistent with the symmetries of the problem: either a local Fermi liquid, or else a theory identical to that recently proposed by Furusaki and Nagaos...
متن کاملMagnetic impurity in a Luttinger liquid: A conformal field theory approach.
We study the low-temperature properties of a spin2 magnetic impurity coupled to a one-dimensional interacting electron system. Using the newly developed formalism by Affleck and Ludwig, with a scale invariant boundary condition replacing the impurity, we exploit boundary conformal field theory to deduce the impurity thermal and magnetic response. In the case of only forward electron scattering ...
متن کاملLuttinger-liquid behavior in tunneling through a quantum dot at zero magnetic field.
Thermodynamic and transport properties of a two-dimensional circular quantum dot are studied theoretically at zero magnetic field. In the limit of a large confining potential, where the dot spectrum exhibits a shell structure, it is argued that both spectral and transport properties should exhibit Luttinger liquid behavior. These predictions are verified by direct numerical diagonalization. The...
متن کاملControlling Luttinger liquid physics in spin ladders under a magnetic field.
We present a 14N nuclear magnetic resonance study of a single crystal of CuBr4(C5H12N)2 (BPCB) consisting of weakly coupled spin-1/2 Heisenberg antiferromagnetic ladders. Treating ladders in the gapless phase as Luttinger liquids, we are able to fully account for (i) the magnetic field dependence of the nuclear spin-lattice relaxation rate T1(-1) at 250 mK and for (ii) the phase transition to a...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 2001
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i2001-00426-2