2 papers
cond-mat.dis-nn2005
Quantum Monte Carlo Simulations on S=1/2 antiferromagnetic-Ferromagnetic Random Alternating spin chain
Peng Zhang, Zhaoxin Xu, Heping Ying +1
The S=1/2 Heisenberg chain with bond alternation and randomness of antiferromagnetic (AFM) and ferromagnetic (FM) interactions is investigated by quantum Monte Carlo simulations of…
cond-mat.str-el1998
Exactly solvable Kondo problem in the open chains
Jianhui Dai, Yupeng Wang
We study the problem of a boundary magnetic impurity coupled with the solvable chains. Our model provides a good start point to understand the Kondo problem in a Luttinger li…