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T: Fachverband Teilchenphysik
T 85: Beyond the Standard Model (Theory) 2 and QFT and Lattice Gauge Theory 1
T 85.7: Talk
Thursday, March 24, 2022, 17:45–18:00, T-H16
QCD equation of state via the complex Langevin method — •Felipe Attanasio1, Benjamin Jäger2, and Felix Ziegler2,3 — 1Institute for Theoretical Physics, Universität Heidelberg, Philosophenweg 16, D-69120, Germany — 2CP3-Origins & Danish IAS, Department of Mathematics and Computer Science, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark — 3School of Physics and Astronomy, The University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
The equation of state of hadronic matter is of high importance for many fields, ranging from heavy-ion collisions to neutron stars. Non-perturbative methods to simulate QCD encounter difficulties at finite chemical potential µ due to the so-called sign problem. We employ the complex Langevin method to circumvent this problem and carry out simulations at a variety of values for temperature and µ. We present results on the pressure, energy and entropy equations of state, as well as a numerical observation of the Silver Blaze phenomenon.