Garron, N. and Langfeld, K. (2016) Anatomy of the sign-problem in heavy-dense QCD. The European Physical Journal C, 76 (10). 569. ISSN 1434-6044
Abstract
QCD at finite densities of heavy quarks is investigated using the density-of-states method. The phase factor expectation value of the quark determinant is calculated to unprecedented precision as a function of the chemical potential. Results are validated using those from a reweighting approach where the latter can produce a significant signalto-noise ratio. We confirm the particle–hole symmetry at low temperatures, find a strong sign problem at intermediate values of the chemical potential, and an inverse Silver Blaze feature for chemical potentials close to the onset value: here, the phase-quenched theory underestimates the density of the full theory.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2016. This article is published with open access at Springerlink.com. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 20 Sep 2017 14:26 |
Last Modified: | 20 Sep 2017 14:26 |
Published Version: | https://doi.org/10.1140/epjc/s10052-016-4412-2 |
Status: | Published |
Publisher: | Springer Verlag |
Refereed: | Yes |
Identification Number: | 10.1140/epjc/s10052-016-4412-2 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121394 |