THE HAMILTONIAN SPECTRUM OF DIRECTED PERCOLATION

被引：19

作者：

HENKEL, M ^{[1
]}

HERRMANN, HJ ^{[1
]}

机构：

[1] CENS, SERV PHYS THEOR, F-91191 GIF SUR YVETTE, FRANCE

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1990年 / 23卷 / 16期

关键词：

D O I：

10.1088/0305-4470/23/16/020

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The authors calculate the spectrum of a quantum Hamiltonian which is in the universality class of the Reggeon field theory and directed percolation. They find that its low-lying states follow a self-similarity close to the one encountered in the exactly solvable transverse XY model. The spectrum can, in the finite-size scaling limit, approximately be described by excitations with a dispersion relation ktheta on the lattice instead of the k 2 behaviour of the transverse XY model.

引用

页码：3719 / 3727

页数：9