Holographic Heavy-Ion Collisions: Analytic Solutions with Longitudinal Flow, Elliptic Flow and Vorticity

TL;DR

This paper presents analytic solutions in holographic models of heavy-ion collisions, revealing initial inward longitudinal flow, significant flow anisotropies, and tunable vorticity, with insights into angular momentum and rotation behavior.

Contribution

It introduces simple analytic solutions capturing key phenomenological features of holographic heavy-ion collisions, including flow and vorticity dynamics.

Findings

Early-time longitudinal flow is inward.

Generated sizable elliptic and quadrangular flow.

System's vorticity is tunable and does not lead to full rotation.

Abstract

We consider phenomenological consequences arising from simple analytic solutions for holographic heavy-ion collisions. For these solutions, early-time longitudinal flow is initially negative (inward), sizable direct, elliptic, and quadrangular flow is generated, and the average vorticity of the system is tunable by a single parameter. Despite large vorticity and angular momentum, we show that the system does not complete a single rotation.