COULD THERE BE SOMETHING RATHER THAN NOTHING

被引：0

作者：

GARRETSON, WD ^{[1
]}

CARLSON, ED ^{[1
]}

机构：

[1] HARVARD UNIV,LYMAN LAB PHYS,CAMBRIDGE,MA 02138

来源：

PHYSICS LETTERS B | 1993年 / 315卷 / 3-4期

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

There is increasing evidence that the universe may have a small cosmological constant. We suggest a scheme for naturally generating a small cosmological constant. Our idea requires the presence of a discrete accidental symmetry which is spontaneously broken by vacuum expectation values of the fields, and explicitly broken by high dimensional operators in the Lagrangian.

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页码：232 / 238

页数：7

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