Spontaneous symmetry breaking vacuum energy in cosmology

doi:10.1088/1674-1056/21/7/079801

中国物理B ›› 2012, Vol. 21 ›› Issue (7): 79801-079801.doi: 10.1088/1674-1056/21/7/079801

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇下一篇

Spontaneous symmetry breaking vacuum energy in cosmology

周康^a, 岳瑞宏^b, 杨战营^a, 邹德成^a

a Department of Physics, Northwest University, Xi'an 710069, China;
b Faculty of Science, Ningbo University, Ningbo 315211, China

收稿日期:2011-09-14 修回日期:2012-03-08 出版日期:2012-06-01 发布日期:2012-06-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10875060, 10975180 and 11047025).

Spontaneous symmetry breaking vacuum energy in cosmology

Zhou Kang(周康)^a), Yue Rui-Hong(岳瑞宏)^{b)^†}, Yang Zhan-Ying(杨战营)^a)‡, and Zou De-Cheng(邹德成)^a)

a Department of Physics, Northwest University, Xi'an 710069, China;
b Faculty of Science, Ningbo University, Ningbo 315211, China

Received:2011-09-14 Revised:2012-03-08 Online:2012-06-01 Published:2012-06-01
Contact: Yue Rui-Hong, Yang Zhan-Ying E-mail:yueruihong@nbu.edu.cn;zyyang@nwu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10875060, 10975180 and 11047025).

摘要/Abstract

摘要： The gravitational effect of spontaneous symmetry breaking vacuum energy density is investigated by subtracting the flat space–time contribution from the energy in the curved space–time. We find that the remaining effective energy– momentum tensor is too small to cause the acceleration of the universe, although it satisfies the characteristics of dark energy. However, it could provide a promising explanation to the puzzle of why the gravitational effect produced by the huge symmetry breaking vacuum energy in the electroweak theory has not been observed, as it has a sufficiently small value (smaller than the observed cosmic energy density by a factor of 10³²).

关键词: vacuum energy density, cosmology constant, spontaneous symmetry breaking

Abstract: The gravitational effect of spontaneous symmetry breaking vacuum energy density is investigated by subtracting the flat space–time contribution from the energy in the curved space–time. We find that the remaining effective energy– momentum tensor is too small to cause the acceleration of the universe, although it satisfies the characteristics of dark energy. However, it could provide a promising explanation to the puzzle of why the gravitational effect produced by the huge symmetry breaking vacuum energy in the electroweak theory has not been observed, as it has a sufficiently small value (smaller than the observed cosmic energy density by a factor of 10³²).

Key words: vacuum energy density, cosmology constant, spontaneous symmetry breaking

中图分类号: (Cosmology)

98.80.-k

95.36.+x (Dark energy) 04.62.+v (Quantum fields in curved spacetime)

周康, 岳瑞宏, 杨战营, 邹德成 . Spontaneous symmetry breaking vacuum energy in cosmology[J]. 中国物理B, 2012, 21(7): 79801-079801.

Zhou Kang(周康), Yue Rui-Hong(岳瑞宏), Yang Zhan-Ying(杨战营), and Zou De-Cheng(邹德成) . Spontaneous symmetry breaking vacuum energy in cosmology[J]. Chin. Phys. B, 2012, 21(7): 79801-079801.

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Spontaneous symmetry breaking vacuum energy in cosmology

Spontaneous symmetry breaking vacuum energy in cosmology

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