Speaker
Description
The influence of fermion vacuum fluctuations on the thermodynamic properties of strongly interacting quark matter is examined within a finite volume Polyakov chiral SU(3) quark mean field (PCQMF) model at finite temperatures and chemical potentials. A lower momentum cutoff is used to introduce finite volume effects to investigate scaled thermodynamic quantities: pressure $p/T^4$, energy density $\epsilon/T^4$, entropy density $s/T^3$, and trace anomaly $(\epsilon-3p)/T^4$. Along with this, the effect of the fermion vacuum term on quantities such as the square of the speed of sound ($c_s^2$) and the specific heat ($c_v$) at a constant volume is computed. The model predictions are compared to QCD lattice simulations. The inclusion of finite size effects in the vacuum term results in a reduction of the effective quark masses with diminishing system size at lower temperatures, substantially influencing the thermodynamic quantities.
| Field of contribution | Phenomenology |
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