Upper Bound on the Speed of Sound in Nuclear Matter from Transport
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916133758566400 |
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| author | Hippert, Mauricio Noronha, Jorge Romatschke, Paul |
| author_facet | Hippert, Mauricio Noronha, Jorge Romatschke, Paul |
| contents | We point out that there is an upper bound on the speed of sound squared given by $c_s^2 \leq 0.781$ valid for all known systems described by relativistic transient hydrodynamics where calculations of certain ratios of hydrodynamic transport coefficients can be performed from first principles. Assuming this bound is valid for ultradense matter implies that the maximum mass of isolated (non-rotating) neutron stars cannot be larger than 2.7 solar masses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14085 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Upper Bound on the Speed of Sound in Nuclear Matter from Transport Hippert, Mauricio Noronha, Jorge Romatschke, Paul Nuclear Theory High Energy Astrophysical Phenomena High Energy Physics - Phenomenology We point out that there is an upper bound on the speed of sound squared given by $c_s^2 \leq 0.781$ valid for all known systems described by relativistic transient hydrodynamics where calculations of certain ratios of hydrodynamic transport coefficients can be performed from first principles. Assuming this bound is valid for ultradense matter implies that the maximum mass of isolated (non-rotating) neutron stars cannot be larger than 2.7 solar masses. |
| title | Upper Bound on the Speed of Sound in Nuclear Matter from Transport |
| topic | Nuclear Theory High Energy Astrophysical Phenomena High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2402.14085 |