Analytical continuation from imaginary to real chemical potential in 2-color QCD under scrutiny

TL;DR

This study evaluates the effectiveness of analytical continuation from imaginary to real chemical potential in 2-color QCD, demonstrating improvements with better data interpolation methods near the thermodynamic limit.

Contribution

It introduces an exact updating algorithm and closer-to-limit simulations, enhancing the accuracy of analytical continuation in 2-color QCD.

Findings

Improved accuracy with suitable interpolation functions

Closer proximity to the thermodynamic limit enhances results

Exact updating algorithm reduces systematic errors

Abstract

The method of analytical continuation from imaginary to real chemical potential is tested in 2-color QCD. In comparison to previous studies in the same theory, an exact updating algorithm is used and simulations are performed closer to the thermodynamic limit. It is shown that the method considerably improves if suitable functions are used to interpolate data with imaginary chemical potential.