Scalar scattering by black holes and wormholes

被引：5

作者：

Lima Junior, Haroldo C. D. ^{[1
]}

Benone, Carolina L. ^{[2
]}

Crispino, Luis C. B. ^{[1
]}

机构：

[1] Univ Fed Para, Programa Posgrad Fis, BR-66075110 Belem, Para, Brazil

[2] Univ Fed Para, Campus Univ Salinopolis, BR-68721000 Salinopolis, Para, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 07期

关键词：

WAVES; ABSORPTION; ENERGY; FIELD;

D O I：

10.1140/epjc/s10052-022-10576-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the scattering of monochromatic planar scalar waves in a geometry that interpolates between the Schwarzschild solution, regular black holes and traversable wormhole spacetimes. We employ the partial waves approach to compute the differential scattering cross section of the regular black hole, as well as of the wormhole solutions. We compare our full numerical results with the classical geodesic scattering and the glory approximation, obtaining excellent agreement in the appropriate regime of validity of such approximations. We obtain that the differential scattering cross section for the regular black hole case is similar to the Schwarzschild result. Notwithstanding, the results for wormholes can be very distinctive from the black hole ones. In particular, we show that the differential scattering cross section for wormholes considerably decreases at large scattering angles for resonant frequencies.

引用

页数：9

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