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

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.

Comments: 7 pages, 5 figures, Lattice 2006 (High Temperature and Density)