# Field strength correlators in QCD at zero and non-zero temperature

## TL;DR

This paper investigates gauge-invariant field strength correlators in QCD through lattice simulations at zero and finite temperatures, revealing their behavior across the deconfinement transition.

## Contribution

It provides a detailed numerical analysis of field strength correlators in QCD at different temperatures, including near the deconfinement phase transition.

## Key findings

- Correlators measured down to 0.1 fm at zero temperature.
- Behavior of correlators across the deconfinement transition.
- Insights into the QCD vacuum structure at finite temperature.

## Abstract

We study, by numerical simulations on a lattice, the behaviour of the gauge--invariant field strength correlators in QCD both at zero temperature, down to a distance of 0.1 fm, and at finite temperature, across the deconfinement phase transition.