The fluctuations of elliptic flow $\left(v_2\right)$ in relativistic heavy-ion collisions offer a powerful tool to probe the collective behavior and transport properties of the quark-gluon plasma (QGP). The dependence of these fluctuations on particle species further sheds light on the hadronization mechanism. At CERN Large Hadron Collider energies, the ALICE experiment has measured $v_2$ fluctuations for charged pions, kaons, and (anti)protons via the ratio of $v_2$ measured with respect to the spectator plane $\left(v_2\{{\mathrm{\Psi }}_{\mathrm{SP}}\right\})$ and from the four-particle cumulants $\left(v_2\left\{4\right\}\right)$. However, the observed dependencies on transverse momentum and particle type remain not fully understood. In this study, we perform a phenomenological investigation using a multiphase transport model, which allows us to trace the full evolution of flow fluctuations intertwined with the quark coalescence. The results qualitatively reproduce the ALICE measurements and offer deeper insights into the transport dynamics and hadronization of the QGP.

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• Collective flow
• Relativistic heavy-ion collisions