Finite Volume Effects on the QCD Chiral Phase Transition Using NJL Model

The deconfined phase of quantum chromodynamics (QCD) called quark-gluon plasma created in the relativistic heavy-ion collision experiments is of the size of a few fermi, which is comparable to the characteristic interaction scale. Hence, understanding the effect of the finite-system geometry with a suitable boundary condition is necessary for its theoretical understanding. We study the finite volume effects using different boundary conditions (periodic, anti-periodic, MIT, etc.) within the framework of the two-flavour Nambu-Jona-Lasinio model. We look at the chiral quark condensate and the quark number susceptibilities. We also compare the results from the NJL model at the mean-field level with results obtained from lattice QCD, where lattice results are available.