期刊
PHYSICS LETTERS B
卷 486, 期 1-2, 页码 179-185出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(00)00724-3
关键词
-
We study the O(N) phi(4) model compactified on MD-1 circle times S-1, which allows to impose twisted boundary conditions for the S-1-direction. The O(N) symmetry can be broken to H explicitly by the boundary conditions and further broken to I spontaneously by vacuum expectation values of the fields. The symmetries H and I are completely classified and the model turns out to have unexpectedly a rich phase structure. The unbroken symmetry I is shown to depend on not only the boundary conditions but also the radius of S-1, and the symmetry breaking patterns are found to be unconventional. The spontaneous breakdown of the translational invariance is also discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据