Carignano, Stefano ; Buballa, Michael (2020)
Inhomogeneous chiral condensates in three-flavor quark matter.
In: Physical Review D, 101 (1)
doi: 10.1103/PhysRevD.101.014026
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
We investigate the effect of strange-quark degrees of freedom on the formation of inhomogeneous chiral condensates in a three-flavor Nambu–Jona-Lasinio model in mean-field approximation. A GinzburgLandau study complemented by a stability analysis allows us to determine in a general way the location of the critical and Lifshitz points, together with the phase boundary where the (partially) chirally restored phase becomes unstable against developing inhomogeneities, without resorting to specific assumptions on the shape of the chiral condensate. We discuss the resulting phase structure and study the influence of the bare strange-quark mass ms and the axial anomaly on the size and location of the inhomogeneous phase compared to the first-order transition associated with homogeneous matter. We find that, as a consequence of the axial anomaly, the critical and the Lifshitz point split. For realistic strange-quark masses, the effect is, however, very small and becomes sizeable only for small values of ms.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Carignano, Stefano ; Buballa, Michael |
| Art des Eintrags: | Bibliographie |
| Titel: | Inhomogeneous chiral condensates in three-flavor quark matter |
| Sprache: | Englisch |
| Publikationsjahr: | 2020 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review D |
| Jahrgang/Volume einer Zeitschrift: | 101 |
| (Heft-)Nummer: | 1 |
| Kollation: | 12 Seiten |
| DOI: | 10.1103/PhysRevD.101.014026 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We investigate the effect of strange-quark degrees of freedom on the formation of inhomogeneous chiral condensates in a three-flavor Nambu–Jona-Lasinio model in mean-field approximation. A GinzburgLandau study complemented by a stability analysis allows us to determine in a general way the location of the critical and Lifshitz points, together with the phase boundary where the (partially) chirally restored phase becomes unstable against developing inhomogeneities, without resorting to specific assumptions on the shape of the chiral condensate. We discuss the resulting phase structure and study the influence of the bare strange-quark mass ms and the axial anomaly on the size and location of the inhomogeneous phase compared to the first-order transition associated with homogeneous matter. We find that, as a consequence of the axial anomaly, the critical and the Lifshitz point split. For realistic strange-quark masses, the effect is, however, very small and becomes sizeable only for small values of ms. |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Theoretische Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Theoretische Kernphysik > Kernphysik und Nukleare Astrophysik |
| Hinterlegungsdatum: | 02 Aug 2024 12:38 |
| Letzte Änderung: | 02 Aug 2024 12:38 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Inhomogeneous chiral condensates in three-flavor quark matter. (deposited 09 Mär 2022 13:30)
- Inhomogeneous chiral condensates in three-flavor quark matter. (deposited 02 Aug 2024 12:38) [Gegenwärtig angezeigt]
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