4D Taylor-expanded lattice (BQS)
The so-called BQS EoS (Equation of State) module of the NSF-funded MUSES project enables to calculate a 4D equation of state of nuclear matter, at finite temperature \(T\) and finite baryon number, electric charge and strangeness chemical potentials \(\mu_B\), \(\mu_Q\) and \(\mu_S\), respectively. It is based on a 3-dimensional Taylor expansion of lattice QCD data computed at zero chemical potentials.
It can be used to compute a nuclear equation of state for a temperature range of \(30 < T < 800\) MeV, and for chemical potential values of \(0 < \mu_i < 450\) MeV (with \(i=B/Q/S\)).
Note on AI: this documentation was partially written using AI agents (Claude Sonnet 5 through the VSCode Copilot plug-in); the author(s) remain however responsible for its content.