Holographic Quark Matter and Neutron Stars

Carlos Hoyos, Niko Jokela, David Rodríguez Fernández, and Aleksi Vuorinen
Phys. Rev. Lett. 117, 032501 – Published 12 July 2016

Abstract

We use a top-down holographic model for strongly interacting quark matter to study the properties of neutron stars. When the corresponding equation of state (EOS) is matched with state-of-the-art results for dense nuclear matter, we consistently observe a first-order phase transition at densities between 2 and 7 times the nuclear saturation density. Solving the Tolman-Oppenheimer-Volkov equations with the resulting hybrid EOSs, we find maximal stellar masses in excess of two solar masses, albeit somewhat smaller than those obtained with simple extrapolations of the nuclear matter EOSs. Our calculation predicts that no quark matter exists inside neutron stars.

  • Figure
  • Figure
  • Received 15 March 2016

DOI:https://doi.org/10.1103/PhysRevLett.117.032501

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear PhysicsParticles & Fields

Authors & Affiliations

Carlos Hoyos1,*, Niko Jokela2,‡, David Rodríguez Fernández1,†, and Aleksi Vuorinen2,§

  • 1Department of Physics, Universidad de Oviedo, Avenida Calvo Sotelo 18, ES-33007 Oviedo, Spain
  • 2Department of Physics and Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, Helsinki FI-00014, Finland

  • *hoyoscarlos@uniovi.es
  • niko.jokela@helsinki.fi
  • rodriguezferdavid@uniovi.es
  • §aleksi.vuorinen@helsinki.fi

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Issue

Vol. 117, Iss. 3 — 15 July 2016

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