Energy transfer in the collision of two scalar wave packets in spherical symmetry
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866917758261788672 |
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| author | Xin, Li-Jie Guo, Jun-Qi Shao, Cheng-Gang |
| author_facet | Xin, Li-Jie Guo, Jun-Qi Shao, Cheng-Gang |
| contents | We study the collisions of two scalar wave packets in the asymptotically flat spacetime and asymptotically anti-de Sitter spacetime in spherical symmetry. An energy transfer formula is obtained, $y=Cm_{i}m_{o}/r$, where $y$ is the transferred energy in the collisions of the two wave packets, $m_i$ and $m_o$ are the Misner-Sharp energies for the ingoing and outgoing wave packets, respectively, $r$ is the areal radius and collision place, and $C=1.873$ and $C=1.875$ for the asymptotically flat spacetime and asymptotically anti-de Sitter spacetime circumstances, respectively. The formula is universal, independent of the initial profiles of the scalar fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_17563 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Energy transfer in the collision of two scalar wave packets in spherical symmetry Xin, Li-Jie Guo, Jun-Qi Shao, Cheng-Gang General Relativity and Quantum Cosmology We study the collisions of two scalar wave packets in the asymptotically flat spacetime and asymptotically anti-de Sitter spacetime in spherical symmetry. An energy transfer formula is obtained, $y=Cm_{i}m_{o}/r$, where $y$ is the transferred energy in the collisions of the two wave packets, $m_i$ and $m_o$ are the Misner-Sharp energies for the ingoing and outgoing wave packets, respectively, $r$ is the areal radius and collision place, and $C=1.873$ and $C=1.875$ for the asymptotically flat spacetime and asymptotically anti-de Sitter spacetime circumstances, respectively. The formula is universal, independent of the initial profiles of the scalar fields. |
| title | Energy transfer in the collision of two scalar wave packets in spherical symmetry |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2312.17563 |