Transport coefficients, spectral functions and the lattice

By Gert Aarts, J. M. M. Resco. 2002

141 citations recorded by the source corpus.

Transport coefficients are determined by the slope of spectral functions of composite operators at zero frequency. We study the spectral function relevant for the shear viscosity for arbitrary frequencies in weakly-coupled scalar and nonabelian gauge theories at high temperature and compute the corresponding correlator in euclidean time. We discuss whether nonperturbative values of transport coefficients can be extracted from euclidean lattice simulations.

Subfields: Condensed Matter Physics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/dd1f7e9256472728fd0b0e5021f72d05cbb6dcdb

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Condensed Matter Physics

1. Hong Liu
2. Gert Aarts

In Nuclear and High Energy Physics

1. Kumbakonam R. Rajagopal
2. D. Mateos
3. J. Casalderrey-Solana
4. Hong Liu
5. U. Wiedemann
6. V. Hubeny
7. S. Gubser
8. C. Allton

Citations in the corpus

• Electrical conductivity and charge diffusion in thermal QCD from the lattice (2014, background): “This opens up the possibility to apply lattice QCD at finite temperature as the nonperturbative tool of choice, provided that the analytical continuation from Euclidean to real time, or from Euclidean correlators to spectral functions, can be carried out reliably [14].”
• Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, background): “provides a simple example with which to start (and is in fact the form that arises in perturbation theory [216].”
• Relativistic Fluid Dynamics in and out of Equilibrium (2017, unknown): “[205].”