Dec 15 – 16, 2022
Centre for Particle Theory, Durham
Europe/London timezone

The density of states method, Yang-Mills theories and first order phase transitions

Dec 15, 2022, 6:20 PM
30m
Ph30 (zoom room 2) (Centre for Particle Theory, Durham)

Ph30 (zoom room 2)

Centre for Particle Theory, Durham

Department of Physics Durham University South Road Durham DH1 3LE
Long talk (20 mins) Full Length Talks

Speaker

David Mason (University of Swansea)

Description

Phase transitions in gauge theories carry important information about the non-perturbative underlying dynamics. For instance, first-order phase transitions in the early universe generate a primordial gravitational wave background whose intensity can in principle be determined with lattice simulations. However, metastable dynamics at first order phase transitions make precise determination of relevant observables difficult, often leading to large uncontrolled numerical errors. In this talk, I will discuss the first order deconfinement transition in the strong Yang-Mills sector of the standard model using the logarithmic linear relaxation method on the lattice. This method provides a determination of the density of states of the system with exponential error suppression while avoiding the metastability problems. From this, the micro-canonical information can be analysed and thermodynamic observables can be reconstructed with a controlled error.

Type of presentation 20 minute talk
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Please select the most relevant category Lattice QCD

Primary author

David Mason (University of Swansea)

Presentation materials