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- Title
Bounding the QCD Equation of State with the Lattice.
- Authors
Moore, Guy D.; Gorda, Tyler
- Abstract
The equation of state of QCD matter at high densities is relevant for neutron star structure and for neutron star mergers and has been a focus of recent work. We show how lattice QCD simulations, free of sign problems, can provide an upper bound on the pressure as a function of quark chemical potentials. We show that at large chemical potentials this bound should become quite sharp; the difference between the upper bound on the pressure PPQ and the true pressure P is of order PPQ− P = O ( α s 3 P). The corrections arise from a single Feynman diagram; its calculation would render remaining corrections O ( α s 4 P).
- Subjects
QUANTUM chromodynamics; STELLAR structure; NEUTRON stars; PHASES of matter; EQUATIONS of state; STELLAR mergers; QUARK matter
- Publication
Journal of High Energy Physics, 2023, Vol 2023, Issue 12, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP12(2023)133