QCD Phase Transitions in Binary Neutron Star Mergers

ORAL

Abstract

We report on signatures of high-density QCD phase transition to deconfined quarks in the context of binary neutron star mergers. We employ state-of-the-art, general relativistic hydrodynamics simulations of neutron star binaries in quasi-circular and nearly parabolic orbits. We also consider a host of equations of state that model different treatments of both hadronic matter and a 1st order phase transition to quark matter to compute gravitational wave signatures of the deconfined quark phase.

*Numerical Relativity simulations were performed on Bridges2, Comet, Stampede2, Expanse (NSF XSEDE allocation TG-PHY160025), NSF/NCSA Blue Waters (NSF AWD-1811236) and Pennsylvania State University's Institute for Computational and Data Sciences' Roar supercomputers. This research also uses resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DEAC02-05CH11231. We acknowledge support from U.S. Department of Energy, Office of Science, Division of Nuclear Physics under Award No. DE-SC0021177 and the National Science Foundation under Grant No. PHY-2011725, PHY-2116686, PHY-2020275, AST-2108467 and the EU H2020 under ERC Starting Grant No. BinGraSp-714626.

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Presenters

  • Aviral Prakash

    • The Pennsylvania State University

Authors

  • Aviral Prakash

    • The Pennsylvania State University