20.500.12556/RUL-167050 Holographic Gubser flow. A combined analytic and numerical study Gubser flow is an evolution with cylindrical and boost symmetries, which can be best studied by mapping the future wedge of Minkowski space (R$^{3,1}$) to dS$_3$ × ℝ in a conformal relativistic theory. Here, we sharpen our previous analytic results and validate them via the first numerical exploration of the Gubser flow in a holographic conformal field theory. Remarkably, the leading generic behavior at large de Sitter time is free-streaming in transverse directions and the sub-leading behavior is that of a color glass condensate. We also show that Gubser flow can be smoothly glued to the vacuum outside the future Minkowski wedge generically given that the energy density vanishes faster than any power when extrapolated to early proper time or to large distances from the central axis. We find that at intermediate times the ratio of both the transverse and longitudinal pressures to the energy density converge approximately to a fixed point which is hydrodynamic only for large initial energy densities. We argue that our results suggest that the Gubser flow is better applied to collective behavior in jets rather than the full medium in the phenomenology of heavy ion collisions and can reveal new clues to the mechanism of confinement. relativistic hydrodynamics Gubser flow relativistična hidrodinamika Gubserjev tok true false true Angleški jezik Slovenski jezik Članek v reviji 2025-02-05 15:23:15 2025-02-05 15:23:16 2025-02-06 03:51:30 0000-00-00 00:00:00 2024 0 0 58 str. art. no. 226 Vol. 2024 Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.5 1029-8479 10.1007/JHEP10(2024)226 225221379 JHEP10(2024)226.pdf JHEP10(2024)226.pdf 1 A70E08E6014D51E9AFA96B7DCFA6CFD3 38ae5c40522d6b9d85e3129e433d75cb408618045efac0b98041298eed745021 7fc77b41-e3cc-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=199193 https://link.springer.com/article/10.1007/JHEP10(2024)226 0 8e4164e7-e3cc-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=199194 Fakulteta za matematiko in fiziko 0 0 0