Supplementing analysis of deconfined phase in lattice QCD thermodynamics

Using strong coupling expansion an expectation value of matter field colour density is calculated in the Hamiltonian formulation of lattice QCD at finite temperature with the staggered fermions. The relation of this value to the imaginary part of fundamental representation character changing the sign under the colour charge conjugation is found out. It is also shown that this expectation value could be used as an order parameter of the phase transition associated with the breaking of the colour charge conjugation symmetry. 12 refs