摘要
The possibility of breaking O(N) symmetry in scalar theories by the vacuum expectation value of composite operators rather than by the shift i=vi is considered. We apply the Gaussian variational method and find that, in the simplest O(N)-symmetric renormalizable scalar theories in 3+1 or 2+1 dimensions, this possibility is not realized.
| 原文 | English |
|---|---|
| 頁（從 - 到） | 2720-2722 |
| 頁數 | 3 |
| 期刊 | Physical Review D |
| 卷 | 40 |
| 發行號 | 8 |
| DOIs | |
| 出版狀態 | Published - 1 1月 1989 |