Studying the cosmological apparent horizon with quasistatic coordinates |
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| Authors: | Rui-Yan Yu Towe Wang |
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| Affiliation: | 1. School of Information and Mathematics, Yangtze University, Jingzhou, HuBei, 434023, China
2. Department of Physics, East China Normal University, Shanghai, 200241, China
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| Abstract: | This article aims at a natural generalization of the static coordinates to the (n?+?1)-dimensional Friedmann–Lemaître–Robertson–Walker (FLRW) Universe. After demonstrating a no-go theorem, we put forward the quasistatic coordinates for the FLRW Universe. Then, the quasistatic coordinates are utilized to study the unified first law and the scalar-type perturbations on the cosmological apparent horizon. |
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