The University of Southampton
University of Southampton Institutional Repository

Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars

Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars
Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars
We present a holographic model of QCD with a first order chiral restoration phase transition with chemical potential, mu. The first order behaviour follows from allowing a discontinuity in the dual description as the quarks are integrated out below their constituent mass. The model predicts a deconfined yet massive quark phase at intermediate densities (350 MeV<mu 500 MeV). We solve the Tolman-Oppenheimer-Volkoff equations with the resulting equations of state and find stable hybrid stars with quark cores. We compute the tidal deformability for these hybrid stars and show they are consistent with LIGO/Virgo data on a neutron star collision. Our holographic model shows that quark matter could be present at the core of such compact stars.
hep-ph, astro-ph.HE, hep-th
Fadafan, Kazem Bitaghsir
09897b8e-7f1c-4303-8b67-e869811f9716
Rojas, Jesus Cruz
4cab2072-a7b4-42d4-a9ea-e536f065d51e
Evans, Nicholas
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Fadafan, Kazem Bitaghsir
09897b8e-7f1c-4303-8b67-e869811f9716
Rojas, Jesus Cruz
4cab2072-a7b4-42d4-a9ea-e536f065d51e
Evans, Nicholas
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3

Fadafan, Kazem Bitaghsir, Rojas, Jesus Cruz and Evans, Nicholas (2021) Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars. Phys. Rev. E, 103, [026012]. (doi:10.1103/PhysRevD.103.026012).

Record type: Article

Abstract

We present a holographic model of QCD with a first order chiral restoration phase transition with chemical potential, mu. The first order behaviour follows from allowing a discontinuity in the dual description as the quarks are integrated out below their constituent mass. The model predicts a deconfined yet massive quark phase at intermediate densities (350 MeV<mu 500 MeV). We solve the Tolman-Oppenheimer-Volkoff equations with the resulting equations of state and find stable hybrid stars with quark cores. We compute the tidal deformability for these hybrid stars and show they are consistent with LIGO/Virgo data on a neutron star collision. Our holographic model shows that quark matter could be present at the core of such compact stars.

Text
holographic quark - Version of Record
Available under License Creative Commons Attribution.
Download (680kB)

More information

Accepted/In Press date: 4 January 2021
Published date: 15 January 2021
Additional Information: 17 pages, 14 figures
Keywords: hep-ph, astro-ph.HE, hep-th

Identifiers

Local EPrints ID: 446455
URI: http://eprints.soton.ac.uk/id/eprint/446455
PURE UUID: 90b4dc8b-55cf-429a-8645-5b58381903fd

Catalogue record

Date deposited: 10 Feb 2021 17:33
Last modified: 10 Feb 2021 17:33

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×