Exploring the different phase diagrams of Strong Interactions

Abstract

In-medium field-theory is applied to different effective models and QCD to describe mass and isospin effects, finite volume corrections and magnetic fields in the phase diagram of Strong Interactions, keeping close contact with experiments and lattice results. Findings range from a technical nonperturbative solution of the hot and dense regime of a general massive Yukawa Theory and the computation of the cold and dense chiral surface tension -- a key quantity for supernovae explosions and compact star structure -- to the proposal of a novel signature for the QCD critical endpoint in heavy-ion collisions based on finite-size scaling. The behavior of the deconfining critical temperature as a function of the pion mass and the isospin chemical potential is also addressed in an effective model and the description obtained is in agreement with lattice simulations, in contrast to what is found in (Polyakov-extended) chiral models. We also discuss the thermodynamics of QCD in the presence of a (Abelian) magnetic field to two-loop order and a Functional-Renormalization-Group analysis of relativistic Bose-Einstein condensation of pions in isospin-dense media.

225 pages, 63 figures, PhD Thesis (english version)

References in corpus (18)

• The QCD phase diagram for external magnetic fields
• An Introduction to the Nonperturbative Renormalization Group
• The neutrino signal from protoneutron star accretion and black hole formation
• An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement
• Chiral transition in a magnetic field and at finite baryon density
• Electromagnetic superconductivity of vacuum induced by strong magnetic field: numerical evidence in lattice gauge theory
• Status of Lattice Studies of the QCD Phase Diagram
• Quantum Field Theory at Finite Temperature: An Introduction
• Net-baryon-, net-proton-, and net-charge kurtosis in heavy-ion collisions within a relativistic transport approach
• Influence of the Polyakov loop on the chiral phase transition in the two flavor chiral quark model
• Elliptic Flow: A Study of Space-Momentum Correlations In Relativistic Nuclear Collisions
• Looking inside neutron stars: Microscopic calculations confront observations
• Status of the QCD phase diagram from lattice calculations
• Finite-size effects on the QCD phase diagram
• Exploring high-density baryonic matter: Maximum freeze-out density
• Relativistic Bose gases at finite density
• Non-Markovian expansion in quantum dissipative systems
• Chiral dynamics and pion properties at finite temperature and isospin chemical potential

Cited by in corpus (6)

• Deconfinement in the presence of a strong magnetic background: an exercise within the MIT bag model
• Large Nc Deconfinement Transition in the Presence of a Magnetic Field
• Chiral pions in a magnetic background
• Thermal chiral and deconfining transitions in the presence of a magnetic background
• Effect of quark masses on the QCD presssure in a strong magnetic background
• FRG analysis for a relativistic BEC in arbitrary spatial dimensions