Visualizing gravitational Bessel waves

Aleš Paták, Martin Zouhar, Tomáš Řiháček, Oto Brzobohatý, Jan Geršl, and Anna Charvátová Campbell
Phys. Rev. D 100, 044050 – Published 28 August 2019

Abstract

We explicitly derive a vortex inspired solution for the metric perturbation within the linearized Einstein general theory of relativity in arbitrary dimensions D4. We focus on D=4 where our solution is the gravitational analog of the well-known electromagnetic (or electron) Bessel vortex beams. Next we visualize the perturbed spacetime via tidal tendexes and frame-drag vortexes. We display and analyze mostly two-dimensional sections of the tendexes and the vortexes for different values of an angular momentum of the wave solution. Corresponding geodesic deviation equations are solved and the results are visualized. We show that the physically most important quadrupolelike case leads to a wave with rotating polarization. We discuss asymptotical features of the found solution. We provide also several 3D plots of tendex lines. One of them concerns a special cylindrical-like case and we utilize the topological classification of singularities of the depicted line fields as an approach to characterize the radiation field.

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  • Received 13 May 2019

DOI:https://doi.org/10.1103/PhysRevD.100.044050

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Aleš Paták, Martin Zouhar*, Tomáš Řiháček, and Oto Brzobohatý

  • Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic

Jan Geršl and Anna Charvátová Campbell

  • Czech Metrology Institute, Okružní 31, 63800 Brno, Czech Republic

  • *zouharm@isibrno.cz

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Issue

Vol. 100, Iss. 4 — 15 August 2019

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