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Archivio digitale delle tesi discusse presso l’Università di Pisa

Tesi etd-01162022-233324


Tipo di tesi
Tesi di dottorato di ricerca
Autore
CARDINALI, MARCO
URN
etd-01162022-233324
Titolo
Aspects of confinement in QCD and QCD-like theories.
Settore scientifico disciplinare
FIS/02
Corso di studi
FISICA
Relatori
tutor Prof. D'Elia, Massimo
Parole chiave
  • center symmetry
  • confinement
  • lattice qcd
  • monte-carlo methods
Data inizio appello
01/02/2022
Consultabilità
Completa
Riassunto
In the first of the thesis, we performed a numerical investigation of trace-deformed Yang-Mills theory, in which the deconfinement phase transition is avoided by forbidding the spontaneous symmetry breaking of center symmetry. We found that the both the spectrum and the topological properties of the deformed theory and the usual confining YM are the same, as soon as center symmetry is recovered. We also studied the transition from the deconfined to the re-confined phase by looking at the localization properties of Dirac eigenmodes and thermal monopoles behaviour across the transition.
In the second part, we considered QCD with dynamical fermions; in particular we computed the localization properties of the Dirac eigenmodes across the Roberge-Weiss transition, i.e. when an imaginary chemical potential is added to QCD action. The final part of this thesis regards the study of thermal monopoles across the deconfinement crossover in full QCD.
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