
Motivated by the possible presence of deconfined quark matter in neutron stars and their mergers and the important role of transport phenomena in these systems, we perform the first-ever systematic study of different viscosities and conductivities of dense quark matter using the gauge/gravity duality. Utilizing the V-QCD model, we arrive at results that are in qualitative disagreement with the predictions of perturbation theory, which highlights the differing transport properties of the system at weak and strong coupling and calls for caution in the use of the perturbative results in neutron-star applications.
10 pages, 4 figures; v2: revised version, accepted in PRL
Physical sciences, High Energy Physics - Theory, High Energy Astrophysical Phenomena (astro-ph.HE), Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, High Energy Physics - Theory (hep-th), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
Physical sciences, High Energy Physics - Theory, High Energy Astrophysical Phenomena (astro-ph.HE), Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, High Energy Physics - Theory (hep-th), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
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