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arXiv 1502.06331gr-qchep-th
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柱面引力双孤子的非线性效应

Non-linear effects for cylindrical gravitational two-soliton

Shinya Tomizawa, Takashi Mishima

摘要:

利用四维真空爱因斯坦方程的圆柱孤子解,研究了引力波的非线性效应,如法拉第旋转和时移现象。在以前的工作中,我们分析了由Pomeransky改进的逆散射方法构造的单孤子解。在本文中,我们构造了一个新的具有复共轭极点的双孤子解,从而避免了在单孤子情况下不可避免的光锥奇异性。特别地,我们计算了这种非线性引力波的振幅和偏振的时间依赖性。此外,我们考虑了孤子波的时移现象,这意味着一个波包可以以比光慢的速度传播。

英文摘要:

Using a cylindrical soliton solution to the four-dimensional vacuum Einstein equation, we study non-linear effects of gravitational waves such as Faraday rotation and time shift phenomenon. In the previous work, we analyzed the single-soliton solution constructed by the Pomeransky's improved inverse scattering method. In this work, we construct a new two-soliton solution with complex conjugate poles, by which we can avoid light-cone singularities unavoidable in a single soliton case. In particular, we compute amplitudes of such non-linear gravitational waves and time-dependence of the polarizations. Furthermore, we consider the time shift phenomenon for soliton waves, which means that a wave packet can propagate at slower velocity than light.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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