Holographic modeling of nuclear matter and neutron stars
Abstract I review holographic models for (dense and cold) nuclear matter, neutron stars, and their mergers. I start by a brief general discussion on current knowledge of cold QCD matter and neutron stars, and go on discussing various approaches to model cold nuclear and quark matter by using gauge/g...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-04-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-022-10227-x |
| _version_ | 1819052148672954368 |
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| author | Matti Järvinen |
| author_facet | Matti Järvinen |
| author_sort | Matti Järvinen |
| collection | DOAJ |
| description | Abstract I review holographic models for (dense and cold) nuclear matter, neutron stars, and their mergers. I start by a brief general discussion on current knowledge of cold QCD matter and neutron stars, and go on discussing various approaches to model cold nuclear and quark matter by using gauge/gravity duality, pointing out their strengths and weaknesses. Then I focus on recent results for a complex bottom-up holographic framework (V-QCD), which also takes input from lattice QCD results, effective field theory, and perturbative QCD. Dense nuclear matter is modeled in V-QCD through a homogeneous non-Abelian bulk gauge field. Feasible “hybrid” equations of state for cold nuclear (and quark) matter can be constructed by using traditional methods (e.g., effective field theory) at low densities and the holographic V-QCD model at higher densities. I discuss the constraints from this approach to the properties of the nuclear to quark matter transition as well as to properties of neutron stars. Using such hybrid equations of state as an input for numerical simulations of neutron star mergers, I also derive predictions for the spectrum of produced gravitational waves. |
| first_indexed | 2024-12-21T12:15:14Z |
| format | Article |
| id | doaj.art-57350a221fe749a39d61b8200da85761 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-12-21T12:15:14Z |
| publishDate | 2022-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-57350a221fe749a39d61b8200da857612022-12-21T19:04:28ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-04-0182415310.1140/epjc/s10052-022-10227-xHolographic modeling of nuclear matter and neutron starsMatti Järvinen0Asia Pacific Center for Theoretical PhysicsAbstract I review holographic models for (dense and cold) nuclear matter, neutron stars, and their mergers. I start by a brief general discussion on current knowledge of cold QCD matter and neutron stars, and go on discussing various approaches to model cold nuclear and quark matter by using gauge/gravity duality, pointing out their strengths and weaknesses. Then I focus on recent results for a complex bottom-up holographic framework (V-QCD), which also takes input from lattice QCD results, effective field theory, and perturbative QCD. Dense nuclear matter is modeled in V-QCD through a homogeneous non-Abelian bulk gauge field. Feasible “hybrid” equations of state for cold nuclear (and quark) matter can be constructed by using traditional methods (e.g., effective field theory) at low densities and the holographic V-QCD model at higher densities. I discuss the constraints from this approach to the properties of the nuclear to quark matter transition as well as to properties of neutron stars. Using such hybrid equations of state as an input for numerical simulations of neutron star mergers, I also derive predictions for the spectrum of produced gravitational waves.https://doi.org/10.1140/epjc/s10052-022-10227-x |
| spellingShingle | Matti Järvinen Holographic modeling of nuclear matter and neutron stars European Physical Journal C: Particles and Fields |
| title | Holographic modeling of nuclear matter and neutron stars |
| title_full | Holographic modeling of nuclear matter and neutron stars |
| title_fullStr | Holographic modeling of nuclear matter and neutron stars |
| title_full_unstemmed | Holographic modeling of nuclear matter and neutron stars |
| title_short | Holographic modeling of nuclear matter and neutron stars |
| title_sort | holographic modeling of nuclear matter and neutron stars |
| url | https://doi.org/10.1140/epjc/s10052-022-10227-x |
| work_keys_str_mv | AT mattijarvinen holographicmodelingofnuclearmatterandneutronstars |