Superluminal propagation along the brane in space with extra dimensions
Abstract We demonstrate that a model with extra dimensions formulated in Csaki et al. (Phys Rev D 62:045015, 2000), which fatefully reproduces Friedmann–Robertson–Walker (FRW) equations on the brane, allows for an apparent superluminal propagation of massless signals. Namely, a massive brane curves...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-02-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-12535-w |
| _version_ | 1827284116889927680 |
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| author | De-Chang Dai Dejan Stojkovic |
| author_facet | De-Chang Dai Dejan Stojkovic |
| author_sort | De-Chang Dai |
| collection | DOAJ |
| description | Abstract We demonstrate that a model with extra dimensions formulated in Csaki et al. (Phys Rev D 62:045015, 2000), which fatefully reproduces Friedmann–Robertson–Walker (FRW) equations on the brane, allows for an apparent superluminal propagation of massless signals. Namely, a massive brane curves the spacetime and affects the trajectory of a signal in a way that allows a signal sent from the brane through the bulk to arrive (upon returning) to a distant point on the brane faster than the light can propagate along the brane. In particular, the signal sent along the brane suffers a greater gravitational time delay than the bulk signal due to the presence of matter on the brane. While the bulk signal never moves with the speed greater than the speed of light in its own locality, this effect still enables one to send signals faster than light from the brane observer’s perspective. For example, this effect might be used to resolve the cosmological horizon problem. In addition, one of the striking observational signatures would be arrival of the same gravitational wave signal at two different times, where the first signals arrives before its electromagnetic counterpart. We used GW170104 gravitational wave event to impose a strong limit on the model with extra dimensions in question. |
| first_indexed | 2024-03-07T14:45:06Z |
| format | Article |
| id | doaj.art-cc2c18d7c7814b6c8d38f23b47b7a26e |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T09:50:17Z |
| publishDate | 2024-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-cc2c18d7c7814b6c8d38f23b47b7a26e2024-04-14T11:26:39ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-02-018421710.1140/epjc/s10052-024-12535-wSuperluminal propagation along the brane in space with extra dimensionsDe-Chang Dai0Dejan Stojkovic1Department of Physics, National Dong Hwa UniversityHEPCOS, Department of Physics, SUNY at BuffaloAbstract We demonstrate that a model with extra dimensions formulated in Csaki et al. (Phys Rev D 62:045015, 2000), which fatefully reproduces Friedmann–Robertson–Walker (FRW) equations on the brane, allows for an apparent superluminal propagation of massless signals. Namely, a massive brane curves the spacetime and affects the trajectory of a signal in a way that allows a signal sent from the brane through the bulk to arrive (upon returning) to a distant point on the brane faster than the light can propagate along the brane. In particular, the signal sent along the brane suffers a greater gravitational time delay than the bulk signal due to the presence of matter on the brane. While the bulk signal never moves with the speed greater than the speed of light in its own locality, this effect still enables one to send signals faster than light from the brane observer’s perspective. For example, this effect might be used to resolve the cosmological horizon problem. In addition, one of the striking observational signatures would be arrival of the same gravitational wave signal at two different times, where the first signals arrives before its electromagnetic counterpart. We used GW170104 gravitational wave event to impose a strong limit on the model with extra dimensions in question.https://doi.org/10.1140/epjc/s10052-024-12535-w |
| spellingShingle | De-Chang Dai Dejan Stojkovic Superluminal propagation along the brane in space with extra dimensions European Physical Journal C: Particles and Fields |
| title | Superluminal propagation along the brane in space with extra dimensions |
| title_full | Superluminal propagation along the brane in space with extra dimensions |
| title_fullStr | Superluminal propagation along the brane in space with extra dimensions |
| title_full_unstemmed | Superluminal propagation along the brane in space with extra dimensions |
| title_short | Superluminal propagation along the brane in space with extra dimensions |
| title_sort | superluminal propagation along the brane in space with extra dimensions |
| url | https://doi.org/10.1140/epjc/s10052-024-12535-w |
| work_keys_str_mv | AT dechangdai superluminalpropagationalongthebraneinspacewithextradimensions AT dejanstojkovic superluminalpropagationalongthebraneinspacewithextradimensions |