  The potential due to a system of three static quark (3Q) is studied using
SU(3) lattice QCD at finite temperature with Polyakov loops operators. We
focused our analysis on the large distance properties of the 3Q potential and
found a good fit behavior to the Y-string model formula. In addition to the
linearly confining term proportional to the minimal length of the Y-string, we
observed that the subleading logarithmic term, which is proportional to
Dedekind eta function and accounts for the Y-string's quantum fluctuations, is
necessary to reproduce the quark anti-quark string tension of the corresponding
mesonic system at finite temperature.
