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arXiv · 2602.21540

Bjorken Flow of Holographic R-Charged Plasmas

Gustavo de Oliveira·Willians Barreto·Romulo Rougemont
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Abstract

We numerically investigate the time evolution of several physical observables for the so-called 2 R-Charge Black Hole (2RCBH) model undergoing Bjorken flow. The 2RCBH model corresponds to a top-down holographic construction describing a strongly interacting conformal fluid defined at finite temperature and R-charge density. Taken together with previous findings for the purely thermal $\mathcal{N}=4$ Supersymmetric Yang-Mills (SYM) plasma, and the 1 R-Charge Black Hole (1RCBH) model, our results for the 2RCBH model provide strong numerical evidence for the existence of far-from-equilibrium correlations between the non-equilibrium holographic entropy defined through the area of the apparent horizon of dynamical bulk black holes, and the expectation value of the energy-momentum tensor of the dual boundary quantum field theory. Such correlations are relevant in the pre-hydrodynamic stages of some initial data evolved in time, and seem to hold at least for strongly interacting conformal fluids, be they charged or neutral.

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Gustavo de Oliveira, Willians Barreto, Romulo Rougemont. 2026-02-25. Bjorken Flow of Holographic R-Charged Plasmas. https://doi.org/10.1140/epjc%2Fs10052-026-16257-z

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