# Transport Coefficients of Quark Gluon Plasma for Pure Gauge Models

## TL;DR

This paper computes the transport coefficients of pure gauge quark-gluon plasma using lattice simulations, highlighting the impact of different actions on statistical fluctuations and exploring their dependence on the coupling constant.

## Contribution

It introduces lattice calculations of transport coefficients for pure gauge models and compares the effects of standard and improved actions on data quality.

## Key findings

- Transport coefficients depend on the coupling as approximately g^(-3) for SU(2).
- Improved actions significantly reduce statistical fluctuations.
- Large MC samples are required for accurate measurements with standard actions.

## Abstract

The transport coefficients of quark gluon plasma are calculated on a lattice 16**3X8, with the pure gauge models. Matsubara Green's functions of energy momentum tensors have very large fluctuations and about a few million MC sweeps are needed to reduce the errors reasonably small in the case of the standard action. They are much suppressed if Iwasaki's improved action is employed. Preliminary results show that the transport coefficients roughly depend on the coupling constant as a**(-3)(g) in the case of SU(2).