Exploring the QCD phase diagram via reweighting from isospin chemical potential

20 Jun 2019, 16:30
20m
Hankou

Hankou

Parallel Nonzero Temperature and Density Nonzero Temperature and Density

Speaker

Sebastian Schmalzbauer (Goethe University Frankfurt am Main)

Description

We investigate the QCD phase diagram close to the isospin chemical potential axis. Simulations directly along this axis are not hindered by the sign problem and pion condensation can be observed at high enough values of the isospin chemical potential. We study how the related phase boundary evolves in the baryon and strangeness chemical potential directions via reweighting in the quark chemical potentials and discuss our results. Furthermore, we develop an alternative method to approach nonzero baryon chemical potentials. This involves simulations including auxiliary quarks of an extended isospin doublet and decoupling them by increasing their mass, again via reweighting.

Authors

Sebastian Schmalzbauer (Goethe University Frankfurt am Main) Dr Gergely Endrődi (Goethe University Frankfurt am Main) Dr Bastian B. Brandt (Goethe University Frankfurt am Main) Francesca Cuteri (Goethe University Frankfurt am Main)

Presentation materials