Gravitational potentials and forces in the Lattice Universe: a slab
Gravitational potentials and forces in the Lattice Universe: a slab
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晶格宇宙中的引力势和力:一块板
DOI:
10.1140/epjp/s13360-021-01139-y
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Zhuk, Alexander
中科院分区:
文献类型:
--
作者:
Eingorn, Maxim;O’Briant, Niah;Arzu, Katie;Brilenkov, Maxim;Zhuk, Alexander
We study the effect of the slab topologyof the Universe on the form of gravitational potentials and forces created by point-like masses. We obtain two alternative forms of solutions: One is based on the Fourier series expansion of the delta function using the periodical property along the toroidal dimension, and another one is derived by direct summation of solutions of the Helmholtz equation for the source particle and all its images. The latter one takes the form of the sum of Yukawa-type potentials. We demonstrate that for the present Universe the latter solution is preferable for numerical calculations since it requires less terms of the series to achieve the necessary precision.
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