Carignano, Stefano (2012)
Inhomogeneous chiral symmetry breaking phases.
Technische Universität Darmstadt
Dissertation, Erstveröffentlichung
Kurzbeschreibung (Abstract)
In this thesis we investigate the formation of inhomogeneous chiral symmetry breaking phases, characterized by a spatially modulated quark-antiquark condensate. In order to determine the relevance of this kind of structure for the phase diagram of strongly interacting matter, we employ the Nambu–Jona-Lasinio model for two light quark flavors and study the properties of the ground state of the system. After observing the appearance of an inhomogeneous “island” at low temperatures and intermediate chemical potentials in the model phase diagram, we compare different one- and two-dimensional crystalline shapes for the chiral condensate, in order to determine which one is the thermodynamically most favored. Once having determined the favored shape for the ground state the system, we study in more detail the properties of this inhomogeneous phase. We then investigate the effects on it of common model extensions like the inclusion of vector interactions and an effective coupling with the Polyakov loop. Finally, in order to compare our results with recent predictions on inhomogeneous structures from quarkyonic matter studies, we study the model phase structure at higher chemical potentials and determine that the favored shape for the system ground state changes. A careful discussion on the interpretation of these results is included as well.
Typ des Eintrags: | Dissertation | ||||
---|---|---|---|---|---|
Erschienen: | 2012 | ||||
Autor(en): | Carignano, Stefano | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Inhomogeneous chiral symmetry breaking phases | ||||
Sprache: | Englisch | ||||
Referenten: | Buballa, PD Dr. Michael ; Wambach, Prof. Dr. Jochen | ||||
Publikationsjahr: | 1 November 2012 | ||||
Datum der mündlichen Prüfung: | 24 Oktober 2012 | ||||
URL / URN: | urn:nbn:de:tuda-tuprints-31493 | ||||
Kurzbeschreibung (Abstract): | In this thesis we investigate the formation of inhomogeneous chiral symmetry breaking phases, characterized by a spatially modulated quark-antiquark condensate. In order to determine the relevance of this kind of structure for the phase diagram of strongly interacting matter, we employ the Nambu–Jona-Lasinio model for two light quark flavors and study the properties of the ground state of the system. After observing the appearance of an inhomogeneous “island” at low temperatures and intermediate chemical potentials in the model phase diagram, we compare different one- and two-dimensional crystalline shapes for the chiral condensate, in order to determine which one is the thermodynamically most favored. Once having determined the favored shape for the ground state the system, we study in more detail the properties of this inhomogeneous phase. We then investigate the effects on it of common model extensions like the inclusion of vector interactions and an effective coupling with the Polyakov loop. Finally, in order to compare our results with recent predictions on inhomogeneous structures from quarkyonic matter studies, we study the model phase structure at higher chemical potentials and determine that the favored shape for the system ground state changes. A careful discussion on the interpretation of these results is included as well. |
||||
Alternatives oder übersetztes Abstract: |
|
||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik > Institut für Kernphysik 05 Fachbereich Physik |
||||
Hinterlegungsdatum: | 19 Nov 2012 07:08 | ||||
Letzte Änderung: | 05 Mär 2013 10:03 | ||||
PPN: | |||||
Referenten: | Buballa, PD Dr. Michael ; Wambach, Prof. Dr. Jochen | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 24 Oktober 2012 | ||||
Export: | |||||
Suche nach Titel in: | TUfind oder in Google |
Frage zum Eintrag |
Optionen (nur für Redakteure)
Redaktionelle Details anzeigen |