【24h】

Line Mass Current in De-Sitter Space-Time

机译:De-Sitter时空中的线质量电流

获取原文
           

摘要

The stationary solutions of the wave equation describing gravitational perturbations in a curved background are considered. The curved background is a de–Sitter metric (including a cosmological term Λ). The metric perturbations are generated by a long line mass current. The solutions to the wave equation are linear in Λ and can be interpreted physically in comparison with the corresponding solutions in the flat background (Λ=0, i.e. familiar gravito-electromagnetic fields). Presence of the cosmological term weakens the gravito-electric field by an outward vector field as if it arisen from a negative charge mass distribution. Presence of the cosmological term strengthens the gravito-magnetic field by an azimuthal vector field as if it arisen from a variable linear volume current. From the dark energy point of view, a theoretical method is proposed to determine the sign of cosmological term in galactic or cosmic scales.
机译:考虑了波动方程的静态解,该波动方程描述了弯曲背景下的重力扰动。弯曲的背景是de-Sitter度量(包括宇宙学术语Λ)。度量扰动是由长线质量电流产生的。波动方程的解在Λ中是线性的,并且可以与平坦背景中的相应解(Λ= 0,即熟悉的重力电磁场)进行物理解释。宇宙学术语的存在通过向外的矢量场削弱了重力电场,就好像它是由负电荷质量分布引起的一样。宇宙学术语的存在通过重力矢量场增强了重力磁场,就好像重力磁场是由可变的线性体积电流产生的一样。从暗能量的角度出发,提出了一种理论方法来确定银河系或宇宙尺度内宇宙学术语的符号。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号