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15 papers · 2 filters
Hard-Loop Dynamics of Non-Abelian Plasma Instabilities
Anton Rebhan, Paul Romatschke, Michael Strickland
Non-Abelian plasma instabilities may be responsible for the fast apparent quark-gluon thermalization in relativistic heavy-ion collisions if their exponential growth is not hindere…
Renormalization and gauge symmetry for 2PI effective actions
Urko Reinosa
We explore a method to recover symmetry identities in the 2PI formalism. It is based on non-perturbative approximations to the 1PI effective action. We discuss renormalization ques…
Resummed one-loop gluonic contributions to the color superconducting color charge density vanish
Andreas Gerhold
It is shown that gluonic corrections to the tadpole diagrams vanish in the 2SC and CFL phases at the order where one might have expected NLO corrections. This implies that the gluo…
Renormalized thermodynamics from the 2PI effective action
J. Berges, Sz. Borsanyi, U. Reinosa +1
High-temperature resummed perturbation theory is plagued by poor convergence properties. The problem appears for theories with bosonic field content such as QCD, QED or scalar theo…
Anomalous specific heat in ultradegenerate QED and QCD
A. Gerhold, A. Ipp, A. Rebhan
We discuss the origin of the anomalous behavior of the low-temperature entropy and specific heat in ultradegenerate QED and QCD and report on a recent calculation whi…
Thermodynamics of Deconfined QCD at Small and Large Chemical Potential
Andreas Ipp
We present large QCD/QED as a test bed for improved pressure calculations, show how to apply the hints obtained on optimized renormalization scales at large to finite $…