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Quasi-one-dimensional spin-1/2 Heisenberg magnets in their ordered phase: Correlation functions

PHYSICAL REVIEW B 56:17 (1997) 11001-11013

Authors:

FHL Essler, AM Tsvelik, G Delfino

X-ray edge singularity in integrable lattice models of correlated electrons

PHYSICAL REVIEW B 56:11 (1997) 6631-6641

Authors:

FHL Essler, H Frahm

Exact solution of a t-J chain with impurity

(1996)

Authors:

Gerald Bedürftig, Fabian HL Eßler, Holger Frahm

Integrable impurity in the supersymmetric t-J model

(1996)

Authors:

Gerald Bedürftig, Fabian HL Eßler, Holger Frahm

The Supersymmetric t-J Model with a Boundary

(1996)