Carrollian Origins of Bjorken Flow
| Autor: | Bagchi, Arjun, Kolekar, Kedar S., Shukla, Ashish |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 130 (2023) 241601 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.130.241601 |
| Popis: | Bjorken flow is among the simplest models of fluids moving near the speed of light ($c$) while Carroll symmetry arises as a contraction of Poincar\'{e} group when $c \to 0$. We show that Bjorken flow and its phenomenological approximations are completely captured by Carrollian fluids. Carrollian symmetries arise on generic null surfaces and a fluid moving at $c$ is restricted to such a surface, thereby naturally inheriting the symmetries. Carrollian hydrodynamics is thus not exotic, but rather ubiquitous, and provides a concrete framework for fluids moving at or near the speed of light. Comment: 7 pages, 2 figures. v2: Minor presentation changes. Matches version published in PRL |
| Databáze: | arXiv |
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