Strong Coupling Lattice Schwinger Model on Large Spherelike Lattices

Дата и время публикации : 1995-06-27T14:20:35Z

Авторы публикации и институты :
H. Gausterer
C. B. Lang

Ссылка на журнал-издание: Nucl.Phys. B455 (1995) 785-795
Коментарии к cтатье: 16 pages + 7 figures, gzipped POSTSCRIPT file
Первичная категория: hep-lat

Все категории : hep-lat, cond-mat

Краткий обзор статьи: The lattice regularized Schwinger model for one fermion flavor and in the strong coupling limit is studied through its equivalent representation as a restricted 8-vertex model. The Monte Carlo simulation on lattices with torus-topology is handicapped by a severe non-ergodicity of the updating algorithm; introducing lattices with spherelike topology avoids this problem. We present a large scale study leading to the identification of a critical point with critical exponent $nu=1$, in the universality class of the Ising model or, equivalently, the lattice model of free fermions.

Category: Physics