Typel, Stefan ; Blaschke, David (2023)
A Phenomenological Equation of State of Strongly Interacting Matter with First-Order Phase Transitions and Critical Points.
In: Universe, 2018, 4 (2)
doi: 10.26083/tuprints-00016953
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
An extension of the relativistic density functional approach to the equation of state for strongly interacting matter is suggested that generalizes a recently developed modified excluded-volume mechanism to the case of temperature- and density-dependent available-volume fractions. A parametrization of this dependence is presented for which, at low temperatures and suprasaturation densities, a first-order phase transition is obtained. It changes for increasing temperatures to a crossover transition via a critical endpoint. This provides a benchmark case for studies of the role of such a point in hydrodynamic simulations of ultrarelativistic heavy-ion collisions. The approach is thermodynamically consistent and extendable to finite isospin asymmetries that are relevant for simulations of neutron stars, their mergers, and core-collapse supernova explosions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Typel, Stefan ; Blaschke, David |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | A Phenomenological Equation of State of Strongly Interacting Matter with First-Order Phase Transitions and Critical Points |
| Sprache: | Englisch |
| Publikationsjahr: | 20 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2018 |
| Ort der Erstveröffentlichung: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Universe |
| Jahrgang/Volume einer Zeitschrift: | 4 |
| (Heft-)Nummer: | 2 |
| Kollation: | 10 Seiten |
| DOI: | 10.26083/tuprints-00016953 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/16953 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | An extension of the relativistic density functional approach to the equation of state for strongly interacting matter is suggested that generalizes a recently developed modified excluded-volume mechanism to the case of temperature- and density-dependent available-volume fractions. A parametrization of this dependence is presented for which, at low temperatures and suprasaturation densities, a first-order phase transition is obtained. It changes for increasing temperatures to a crossover transition via a critical endpoint. This provides a benchmark case for studies of the role of such a point in hydrodynamic simulations of ultrarelativistic heavy-ion collisions. The approach is thermodynamically consistent and extendable to finite isospin asymmetries that are relevant for simulations of neutron stars, their mergers, and core-collapse supernova explosions. |
| Freie Schlagworte: | equation of state, QCD matter, phase transition, critical point, modified excluded-volume mechanism |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-169538 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Compact Stars in the QCD Phase Diagram |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik |
| Hinterlegungsdatum: | 20 Nov 2023 15:12 |
| Letzte Änderung: | 27 Nov 2023 11:30 |
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| Suche nach Titel in: | TUfind oder in Google |
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- A Phenomenological Equation of State of Strongly Interacting Matter with First-Order Phase Transitions and Critical Points. (deposited 20 Nov 2023 15:12) [Gegenwärtig angezeigt]
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