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Developments in lattice quantum chromodynamics for matter at high temperature and density / Gert Aarts

Pramana, Volume: 84, Issue: 5, Pages: 787 - 799

Swansea University Author: Gert Aarts

DOI (Published version): 10.1007/s12043-015-0981-0

Abstract

A brief overview of the QCD phase diagram at nonzero temperature and density is provided. It is explained why standard lattice QCD techniques are not immediately applicable for its determination, due to the sign problem. We then discuss a selection of recent lattice approaches that attempt to evade...

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Published in: Pramana
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa21534
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Abstract: A brief overview of the QCD phase diagram at nonzero temperature and density is provided. It is explained why standard lattice QCD techniques are not immediately applicable for its determination, due to the sign problem. We then discuss a selection of recent lattice approaches that attempt to evade the sign problem and classify them according to the underlying principle: constrained simulations (density of states, histograms), holomorphicity (complex Langevin, Lefschetz thimbles), partial summations (clusters, subsets, bags) and change in integration order (strong coupling, dual formulations).
College: College of Science
Issue: 5
Start Page: 787
End Page: 799