Fixed-scale approach to finite-temperature lattice QCD with shifted boundaries

Understand

We study the thermodynamics of the SU(3) gauge theory using the fixed-scale approach with shifted boundary conditions.

• The fixed-scale approach can reduce the numerical cost of the zero-temperature part in the equation of state calculations, while the number of possible temperatures is limited by the integer $N_t$, which represents the temporal lattice extent.
• The shifted boundary conditions can overcome such a limitation while retaining the advantages of the fixed-scale approach.
• Therefore, our approach enables the investigation of not only the equation of state in detail, but also the calculation of the critical temperature with increased precision even with the fixed-scale approach.