Exact solution of a t-J chain with impurity

Abstract

We study the effects of an integrable impurity in a periodic t-J chain. The impurity couples to both spin and charge degrees of freedom and has the interesting feature that the interaction with the bulk can be varied continuously without losing integrability. We first consider ground state properties close to half-filling in the presence of a small bulk magnetic field. We calculate the impurity contributions to the (zero temperature) susceptibilities and the low temperature specific heat and determine the high-temperature characteristics of the impurity. We then investigate transport properties by computing the spin and charge stiffnesses at zero temperature. Finally the impurity phase--shifts are calculated and the existence of an impurity bound state in the holon sector is established.

33 pages Latex, figures included

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• Thermodynamics of an integrable model for electrons with correlated hopping
• Exact perturbative solution of the Kondo problem
• Exact diagonalization of the quantum supersymmetric $S{U}_q(n|m)$ model
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Cited by in corpus (34)

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• Algebraic Bethe ansatz for the gl(1|2) generalized model and Lieb-Wu equations
• Analytic Bethe ansatz related to a one parameter family of finite dimensional representations of the Lie superalgebra sl(r+1|s+1)
• Integrable spin chains with random interactions
• Algebraic properties of an integrable t-J model with impurities
• Persistent currents through a quantum impurity: Protection through integrability
• Algebraic Bethe ansatz for the gl(1$|$2) generalized model II: the three gradings
• Integrable multiparametric quantum spin chains
• Algebraic Bethe ansatz for integrable Kondo impurities in the one-dimensional supersymmetric t-J model
• Exact diagonalization of the generalized supersymmetric t-J model with boundaries
• Two Magnetic Impurities in a Spin Chain
• Exact solution for the Bariev model with boundary fields
• Transport and entanglement across integrable impurities from Generalized Hydrodynamics
• Exact Solution of a Electron System Combining Two Different t-J Models
• Heisenberg XYZ Hamiltonian with Integrable Impurities
• Boundary Kondo impurities in the generalized supersymmetric t-J model
• Algebraic Bethe ansatz for an integrable U_q[Sl(n|m)] vertex model with mixed representations
• Integrable boundary impurities in the t-J model with different gradings
• Integrable Kondo impurities in the one-dimensional supersymmetric U model of strongly correlated electrons
• Two Magnetic Impurities with Arbitrary Spins in Open Boundary t-J Model
• Integrable Kondo impurities in the one-dimensional supersymmetric extended Hubbard model
• Anderson-like impurity in the one-dimensional t-J model: formation of local states and magnetic behaviour
• Integrable impurities in Hubbard chain with the open boundary condition
• The $U_q(\widehat{sl}(2/1){)}_1$-module $V({\Lambda }_2)$ and a Corner Transfer Matrix at q=0
• Integrability of the Heisenberg Chains with Boundary Impurities and Their Bethe Ansatz
• Dynamically Induced Multi-Channel Kondo Effect
• Crossover from Anderson- to Kondo-like behavior: Universality induced by spin-charge separation
• Scattering matrix for a general gl(2) spin chain
• Integrable open supersymmetric U model with boundary impurity
• Interplay between a quantum impurity and a boundary field in the SUSY t-J model