Selected Issues in Thermal Field Theory

TL;DR

This paper reviews recent advances in thermal field theory, focusing on hot/dense QCD, lattice gauge results on hadron survival in chiral symmetry restoration, and the properties of bound states in medium.

Contribution

It introduces new insights into hadron behavior in hot/dense environments using effective field theories, lattice results, and holographic models.

Findings

Evidence of hadron survival in restored chiral symmetry phase

Analysis of bound state properties in medium using chiral approaches

Discussion of higher-lying hadrons near chiral symmetry restoration

Abstract

New developments on hot and dense QCD in effective field theories are reviewed. Recent investigations in lattice gauge theories for the low-lying Dirac eigenmodes suggest survival hadrons in restored phase of chiral symmetry. We discuss expected properties of those bound states in a medium using chiral approaches. The role of higher-lying hadrons near chiral symmetry restoration is also argued from the conventional and the holographic point of view.