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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.10303 |
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| _version_ | 1866915144238366720 |
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| author | Bhambure, Jay Mazeliauskas, Aleksas Paquet, Jean-Francois Singh, Rajeev Singh, Mayank Teaney, Derek Zhou, Fabian |
| author_facet | Bhambure, Jay Mazeliauskas, Aleksas Paquet, Jean-Francois Singh, Rajeev Singh, Mayank Teaney, Derek Zhou, Fabian |
| contents | We conduct a numerical study of relativistic viscous fluid dynamics in the Density Frame for one-dimensional fluid flows. The Density Frame is a formulation of relativistic viscous hydrodynamics that is first-order in time, requires no auxiliary fields, and has no non-hydrodynamic modes. We compare our results to QCD kinetic theory simulations and find excellent agreement within the regime of applicability of hydrodynamics. Additionally, the Density Frame results remain well-behaved and robust near the boundary of applicability. We also compare our findings to the second-order-in-time hydrodynamic theory developed by Bemfica, Disconzi, Noronha, and Kovtun (BDNK) and a well-known Müller-Israel-Stewart-type hydrodynamics code, MUSIC, which is commonly used to simulate heavy-ion collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_10303 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Relativistic Viscous Hydrodynamics in the Density Frame: Numerical Tests and Comparisons Bhambure, Jay Mazeliauskas, Aleksas Paquet, Jean-Francois Singh, Rajeev Singh, Mayank Teaney, Derek Zhou, Fabian Nuclear Theory General Relativity and Quantum Cosmology We conduct a numerical study of relativistic viscous fluid dynamics in the Density Frame for one-dimensional fluid flows. The Density Frame is a formulation of relativistic viscous hydrodynamics that is first-order in time, requires no auxiliary fields, and has no non-hydrodynamic modes. We compare our results to QCD kinetic theory simulations and find excellent agreement within the regime of applicability of hydrodynamics. Additionally, the Density Frame results remain well-behaved and robust near the boundary of applicability. We also compare our findings to the second-order-in-time hydrodynamic theory developed by Bemfica, Disconzi, Noronha, and Kovtun (BDNK) and a well-known Müller-Israel-Stewart-type hydrodynamics code, MUSIC, which is commonly used to simulate heavy-ion collisions. |
| title | Relativistic Viscous Hydrodynamics in the Density Frame: Numerical Tests and Comparisons |
| topic | Nuclear Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2412.10303 |