Critical behavior of the S=3/2 antiferromagnetic Heisenberg chain

Дата и время публикации : 1996-03-12T09:07:06Z

Авторы публикации и институты :
K. Hallberg
X. Q. G. Wang
P. Horsch
A. Moreo

Ссылка на журнал-издание: Phys. Rev. Lett 76, 4955 (1996)
Коментарии к cтатье: RevTeX (version 3.0), 4 twocolumn pages with 4 embedded figures
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: Using the density-matrix renormalization-group technique we study the long-wavelength properties of the spin S=3/2 nearest-neighbor Heisenberg chain. We obtain an accurate value for the spin velocity v=3.8+- 0.02, in agreement with experiment. Our results show conclusively that the model belongs to the same universality class as the S=1/2 Heisenberg chain, with a conformal central charge c=1 and critical exponent eta=1

Category: Physics