Advances in perturbative thermal field theory
Ulrike Kraemmer,Anton Rebhan +1 more
TL;DR: The progress in the last decade in perturbative quantum field theory at high temperatures and densities, made possible by the use of effective field theories and hard thermal/dense loop resummations in ultrarelativistic gauge theories, is reviewed in this paper.
read more
Abstract: The progress in the last decade in perturbative quantum field theory at high temperatures and densities, made possible by the use of effective field theories and hard thermal/dense loop resummations in ultrarelativistic gauge theories, is reviewed. The relevant methods are discussed in field theoretical models from simple scalar theories to non-Abelian gauge theories including gravity. In the simpler models, the aim is to give a pedagogical account of some of the relevant problems and their resolution, while in the more complicated but also more interesting models such as quantum chromodynamics, a summary of the results obtained so far is given together with references to a few of the most recent developments and open problems.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Thermodynamics of the QCD Plasma and the Large-N Limit
TL;DR: The results for SU(N) Yang-Mills theories with N=3, 4, 5, 6, and 8 colors show a very mild dependence on N, supporting the idea that the QCD plasma could be described by models based on the large-N limit.
SU(N) gauge theories at large N
TL;DR: In this article, the authors review the theoretical developments and conceptual advances that stemmed from the generalization of QCD to the limit of a large number of color charges, originally proposed by ’t Hooft.
337
Perfect fluid theory and its extensions
TL;DR: In this paper, the authors review the canonical theory for perfect fluids in Euler's and Lagrange's formulations, which is related to a description of extended structures in higher dimensions, including internal symmetry and supersymmetry degrees of freedom.
188
Resummation in hot field theories
TL;DR: In this paper, the authors discuss the breakdown of naive perturbation theory at finite temperature and the need for an effective expansion that resums an infinite class of diagrams in the perturbative expansion.
183
References
Gluon plasma frequency — the next-to-leading order term
TL;DR: In this paper, the longitudinal electric oscillations of the hot gluon system were studied beyond the well-known leading order term at high temperature T and small coupling g, and the coefficient η in ω 2 = m 2 (1+ ηg √ N ) was calculated, where ω = ω( q = 0 ) is the longwavelength limit of the frequency spectrum, N the number of colours and m 2 = 1 9 g 2 NT 2.
Gauge-invariant calculations in finite-temperature QCD: Landau ghost and magnetic mass
TL;DR: In this paper, it was shown that in one-loop perturbation theory, the Landau ghost for timelike gluons persists up to a temperature T L ≌ 3Λ, while the perturbative Landau Ghost for magnetic glUons exists at all temperatures.
Band-edge dynamics and trapping in ZnSe crystals
TL;DR: The experimental results show that the exciton formation is a two-step process with the capture of the hole first and of the electron next, and the carrier trapping times can be determined with the aid of a simple model and it is found that the quenching of the bound- Exciton luminescence at high temperatures is mainly due to the thermally activated process of free-exciton formation.
•Posted Content
Thermo Field Dynamics for Quantum Fields with Continuous Mass Spectrum applied to Nuclear Physics
TL;DR: Transport coefficients are obtained by incorporating a gauge principle into thermo field dynamics of inhomogeneous systems in this paper, where neither imaginary time arguments nor perturbation theory in powers of a coupling constant are used in the calculation.