Speaker
Description
Zel’dovich and Polnarev suggested that particles hit by a burst of gravitational waves generated by a flyby would merely be displaced. Their prediction is confirmed by fine-tuning the derivative-of-a-Gaussian wave profile proposed by Gibbons and Hawking, or analytically by its approximation by a P¨oschl-Teller potential. The study is extended to higher-order derivative profiles as proposed for gravitational collapse.
Based on:
P. M. Zhang and P. A. Horvathy, “Displacement within velocity effect in gravitational wave memory,” Annals Phys. 470 (2024), 169784 [arXiv:2405.12928 [gr-qc]].
P. M. Zhang, Q. L. Zhao, J. Balog, P. A. Horvathy, “Displacement memory for flyby,” Annals Phys. 473 (2025), 169890 [arXiv:2407.10787 [gr-qc]].
P. M. Zhang, Q. L. Zhao, M. Elbistan P. A. Horvathy, “Gravitational wave memory: further examples,” [arXiv:2412.02705 [gr-qc]]
