2016/05/09 by Nicolas Garrón, Nicolas Garron, Kurt Langfeld · 1 citation
Mathematics · Physics and Astronomy · #Function (biology) #High-Energy Particle Collisions Research #Inverse #Mathematical analysis #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Phase (matter) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark #Sign (mathematics) #Statistics #Symmetry (geometry) #Value (mathematics) #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.1140/epjc/s10052-016-4412-2
15 pages, 16 figures
arxiv created 2016/05/09 · openalex publication_date 2016/10/01 · arxiv updated 2016/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 signal-to-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.