Instabilities of an anisotropically expanding non-Abelian plasma: 1D+3V discretized hard-loop simulations

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dc.creatorRebhan, Anton
dc.creatorStrickland, Michael
dc.creatorAttems, Maximilian
dc.date2008-02-13
dc.date2008-07-11
dc.date.accessioned2026-07-07T11:56:00Z
dc.date.available2026-07-07T11:56:00Z
dc.descriptionNon-Abelian plasma instabilities play a crucial role in the nonequilibrium dynamics of a weakly coupled quark-gluon plasma and they importantly modify the standard perturbative bottom-up thermalization scenario in heavy-ion collisions. Using the auxiliary-field formulation of the hard-loop effective theory, we study numerically the real time evolution of instabilities in an anisotropic collisionless Yang-Mills plasma expanding longitudinally in free streaming. In this first real-time lattice simulation we consider the most unstable modes, long-wavelength coherent color fields that are constant in transverse directions and which therefore are effectively 1+1-dimensional in spacetime, except for the auxiliary fields which also depend on discretized momentum rapidity and transverse velocity components. We reproduce the semi-analytical results obtained previously for the Abelian regime and we determine the nonlinear effects which occur when the instabilities have grown such that non-Abelian interactions become important.
dc.description28 pages, 10 figures; v2 minor updates to figures and text; v3 streamlined notation, minor additions to text
dc.identifierhttps://arxiv.org/abs/0802.1714
dc.identifierhttp://arxiv.org/abs/0802.1714
dc.identifierPhys.Rev.D78:045023,2008
dc.identifierdoi:10.1103/PhysRevD.78.045023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205438
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInstabilities of an anisotropically expanding non-Abelian plasma: 1D+3V discretized hard-loop simulations
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