What question did this study set out to answer?

The aim is to identify signatures of spinodal decomposition in the context of the QCD phase transition during heavy-ion collisions.

February 5, 2026

Spinodal decomposition in Bjorken flow

Key Points

The aim is to identify signatures of spinodal decomposition in the context of the QCD phase transition during heavy-ion collisions.
Developed phenomenological models integrating surface effects from phase transitions into hydrodynamics.
Formulated relativistic hydrodynamics equations considering spinodal decomposition.
Solved equations in the background of Bjorken flow relevant to heavy-ion collisions.
The model predicts observable signatures of spinodal decomposition in experimental data from heavy-ion collisions.
Hydrodynamic equations adjusted for spinodal effects provide a better understanding of the quark gluon plasma behavior.

Abstract

The QCD first-order phase transition at large baryon densities is expected to proceed by spinodal decomposition. This spinodal phase is likely to leave its signatures on the experimental observables measured in heavy-ion collision experiments. Identifying these signatures requires phenomenological models integrating surface effects resulting from the phase transition into the hydrodynamical description of the expanding quark gluon plasma. We write the equations of relativistic hydrodynamics with spinodal decomposition and solve it in on a background of Bjorken flow relevant for heavy-ion collisions.

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Spinodal decomposition in Bjorken flow

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Abstract

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