The Kondo model with a bulk mass term

被引:5
作者
Bassi, ZS [1 ]
LeClair, A [1 ]
机构
[1] Cornell Univ, Newman Lab, Ithaca, NY 14853 USA
基金
美国国家科学基金会;
关键词
anisotropic Kondo model; impurity problems; boundary field theory; boundary scattering matrix; integrable boundary interactions; boundary Yang-Baxter equation;
D O I
10.1016/S0550-3213(99)00257-6
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We introduce two massive versions of the anisotropic spin 1/2 Kondo model and discuss their integrability. The two models have the same bulk sine-Gordon interactions, but differ in their boundary interactions. At the Toulouse free fermion point each of the models can be understood as two decoupled Ising models in boundary magnetic fields. Reflection S-matrices away from the free fermion point are conjectured, (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:643 / 676
页数:34
相关论文
共 40 条
[1]   A CURRENT-ALGEBRA APPROACH TO THE KONDO EFFECT [J].
AFFLECK, I .
NUCLEAR PHYSICS B, 1990, 336 (03) :517-532
[2]  
Affleck I, 1995, ACTA PHYS POL B, V26, P1869
[3]   CRITICAL-THEORY OF OVERSCREENED KONDO FIXED-POINTS [J].
AFFLECK, I ;
LUDWIG, AWW .
NUCLEAR PHYSICS B, 1991, 360 (2-3) :641-696
[4]   BOUNDARY SINE-GORDON INTERACTIONS AT THE FREE FERMION POINT [J].
AMEDURI, M ;
KONIK, R ;
LECLAIR, A .
PHYSICS LETTERS B, 1995, 354 (3-4) :376-382
[5]   DIAGONALIZATION OF THE KONDO-HAMILTONIAN [J].
ANDREI, N .
PHYSICAL REVIEW LETTERS, 1980, 45 (05) :379-382
[6]   SOLUTION OF THE KONDO PROBLEM [J].
ANDREI, N ;
FURUYA, K ;
LOWENSTEIN, JH .
REVIEWS OF MODERN PHYSICS, 1983, 55 (02) :331-402
[7]  
BASSI ZS, IN PRESS PHYS REV B
[8]   QUANTUM GROUP SYMMETRIES AND NONLOCAL CURRENTS IN 2D QFT [J].
BERNARD, D ;
LECLAIR, A .
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1991, 142 (01) :99-138
[9]   CLASSICALLY INTEGRABLE BOUNDARY-CONDITIONS FOR AFFINE TODA FIELD-THEORIES [J].
BOWCOCK, P ;
CORRIGAN, E ;
DOREY, PE ;
RIETDIJK, RH .
NUCLEAR PHYSICS B, 1995, 445 (2-3) :469-500
[10]   QUANTUM SINE-GORDON EQUATION AS MASSIVE THIRRING MODEL [J].
COLEMAN, S .
PHYSICAL REVIEW D, 1975, 11 (08) :2088-2097