PIRSA:19110147

Video URL

https://pirsa.org/19110147

How neutron star mergers can be used to study hadron-quark phase transitions

Most, E. (2019). How neutron star mergers can be used to study hadron-quark phase transitions. Perimeter Institute for Theoretical Physics. https://pirsa.org/19110147

Most, Elias. How neutron star mergers can be used to study hadron-quark phase transitions. Perimeter Institute for Theoretical Physics, Nov. 28, 2019, https://pirsa.org/19110147 

          @misc{ scivideos_PIRSA:19110147,
            doi = {10.48660/19110147},
            url = {https://pirsa.org/19110147},
            author = {Most, Elias},
            keywords = {Strong Gravity},
            language = {en},
            title = {How neutron star mergers can be used to study hadron-quark phase transitions},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2019},
            month = {nov},
            note = {PIRSA:19110147 see, \url{https://scivideos.org/index.php/pirsa/19110147}}
          }

Elias Most Princeton University

Talk numberPIRSA:19110147
DOI10.48660/19110147
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

With the detection of GW170817 we have observed the first multi messenger signal from two merging neutron stars. This signal carried a multitude of information about the underlying equation of state (EOS) of nuclear matter, which so far is not known for densities above nuclear saturation. In particular it is not known if exotic states or even a phase transition to quark matter can occur at densities so extreme that they can't be probed by any current experiment.

I will show how the information carried in the gravitational wave signal of GW170817 can be used to constrain the EOS at densities above saturation and what we can learn about the possible existence of phase transitions. I will
also comment on how we can improve on those limits with upcoming observations of the NICER mission.In the second part of the talk I will focus on what we can learn about exotic states of matter from neutron star mergers.I will comment briefly on the impact of high spins in mergers and the importance of accurate numerical modelling in the context of these studies.Finally I will show how neutron star mergers can be used to study quark phase transitions and the phase diagram of QCD.