Cool Quark Matter

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http://hdl.handle.net/10138/184153

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Kurkela , A & Vuorinen , A 2016 , ' Cool Quark Matter ' , Physical Review Letters , vol. 117 , no. 4 , 042501 . https://doi.org/10.1103/PhysRevLett.117.042501

Title: Cool Quark Matter
Author: Kurkela, Aleksi; Vuorinen, Aleksi
Contributor: University of Helsinki, Department of Physics
Date: 2016-07-20
Language: eng
Number of pages: 5
Belongs to series: Physical Review Letters
ISSN: 0031-9007
URI: http://hdl.handle.net/10138/184153
Abstract: We generalize the state-of-the-art perturbative equation of state of cold quark matter to nonzero temperatures, needed in the description of neutron star mergers and core collapse processes. The new result is accurate to O(g(5)) in the gauge coupling, and is based on a novel framework for dealing with the infrared sensitive soft field modes of the theory. The zero Matsubara mode sector is treated via a dimensionally reduced effective theory, while the soft nonzero modes are resummed using the hard thermal loop approximation. This combination of known effective descriptions offers unprecedented access to small but nonzero temperatures, both in and out of beta equilibrium.
Subject: EQUATION-OF-STATE
GAUGE-THEORIES
NEUTRON-STAR
QUANTUM CHROMODYNAMICS
TEMPERATURE
FERMIONS
ENERGY
QCD
114 Physical sciences
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