Closed strings in a class of pp-wave spacetimes and the memory effect
General Relativity and Quantum Cosmology
2024-10-15 v3 High Energy Physics - Theory
Abstract
We study closed string evolution in the pp-wave spacetime assuming different pulse shapes (square and sech-squared) in the exact gravitational wave metric. It is shown that the shape of a circular closed string deforms permanently, after the pulse has departed. The worldsheet geometry also displays characteristic permanent changes caused by the gravitational wave pulse. The above effects collectively demonstrate features akin to what is known as `memory' in gravitational wave physics.
Cite
@article{arxiv.2407.10095,
title = {Closed strings in a class of pp-wave spacetimes and the memory effect},
author = {Ayan Dey and Sayan Kar},
journal= {arXiv preprint arXiv:2407.10095},
year = {2024}
}
Comments
24 pages, 9 figures, changes in title, text and figures, references added. To appear in Physical Review D (2024)