2019
Visualizing gravitational Bessel waves
PATÁK, Aleš, Martin ZOUHAR, Tomáš ŘIHÁČEK, Oto BRZOBOHATÝ, Jan GERŠL et. al.Základní údaje
Originální název
Visualizing gravitational Bessel waves
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Vydání
Physical review D, COLLEGE PK, American Physical Society, 2019, 2470-0010
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.833
UT WoS
000482945000007
Změněno: 4. 2. 2020 14:13, Mgr. Marie Šípková, DiS.
Anotace
V originále
We explicitly derive a vortex inspired solution for the metric perturbation within the linearized Einstein general theory of relativity in arbitrary dimensions D >= 4. 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.