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Memory effect for impulsive gravitational waves

delete2018-02-14
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张鹏鸣 cover
张鹏鸣 (Pengming Zhang) *
C
Christian Duval
P
P. A. Horváthy
DOI:10.1088/1361-6382/aaa987delete
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Abstract

Abstract

En 中文
Impulsive gravitational plane waves, which have a delta-function singularity on a hypersurface, can be obtained by squeezing smooth plane gravitational waves with a Gaussian profile. They exhibit (as do their smooth counterparts) the velocity memory effect: after the wave has passed, particles initially at rest move apart with non-vanishing constant transverse velocity. A new effect is that, unlike the smooth case, (i) the velocities of particles originally at rest jump, (ii) the spacetime trajectories become discontinuous along the (lightlike) propagation direction of the wave.
Keywords:
gravitational waves
classical general relativity
memory effect
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Classical and Quantum Gravity cover
Classical and Quantum Gravity
IF:
3.7
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1.3W
Citations:
3.0W

Organization

I
institute of modern physics, cas
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C
chinese academy of sciences
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