Warp Drives and Martel-Poisson charts
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913669055512576 |
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| author | Chowdhury, Abhishek |
| author_facet | Chowdhury, Abhishek |
| contents | We extend the construction of Alcubierre-Natário class of warp drives to an infinite class of spacetimes with similar properties. This is achieved by utilising the Martel-Poisson charts which closely resembles the Weak Painlevé-Gullstrand form for various background metrics (Mink, AdS, dS). The highlight of this construction is the non-flat intrinsic metric which in three dimensional spacetimes introduce conical singularities at the origin and in higher dimensions generates non-zero Ricci scalar for the spatial hypersurfaces away from the origin. We analyse the expansion/contraction of space and the (NEC) violations associated with these warp drives and find interesting scalings due to the global imprints of the conical defects. Other properties like tilting of light cones, event horizons and several generalisations are also discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_15948 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Warp Drives and Martel-Poisson charts Chowdhury, Abhishek General Relativity and Quantum Cosmology High Energy Physics - Theory We extend the construction of Alcubierre-Natário class of warp drives to an infinite class of spacetimes with similar properties. This is achieved by utilising the Martel-Poisson charts which closely resembles the Weak Painlevé-Gullstrand form for various background metrics (Mink, AdS, dS). The highlight of this construction is the non-flat intrinsic metric which in three dimensional spacetimes introduce conical singularities at the origin and in higher dimensions generates non-zero Ricci scalar for the spatial hypersurfaces away from the origin. We analyse the expansion/contraction of space and the (NEC) violations associated with these warp drives and find interesting scalings due to the global imprints of the conical defects. Other properties like tilting of light cones, event horizons and several generalisations are also discussed. |
| title | Warp Drives and Martel-Poisson charts |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2404.15948 |