Measurement of thermodynamics using gradient flow

Understand

We analyze bulk thermodynamics and correlation functions of the energy-momentum tensor in pure Yang-Mills gauge theory using the energy-momentum tensor defined by the gradient flow and small flow time expansion.

• Our results on thermodynamic observables are consistent with those obtained by the conventional integral method.
• The analysis of the correlation function of total energy supports the energy conservation.
• It is also addressed that these analyses with gradient flow require less statistics compared with the previous methods.