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   

  1. 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)   

  1. 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: 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)