Contribution contributed talk
Collective excitations and electromagnetic probes of momentum-anisotropic quark-gluon plasma
In a rapidly evolving quark-gluon plasma, local rest frame momentum distributions can largely deviate from isotropic equilibrium statistics. In recent years, progress in the realization of an anisotropic hydrodynamic description beyond the linear viscous corrections has set the stage for further investigating the collective properties and the role of plasma instabilities at earlier stages of the system evolution. In this talk, recent developments in the study of collective excitations, unstable modes and the relevant phenomenology of electromagnetic probes of momentum-anisotropic quark-gluon plasma will be presented.