The Confined-Deconfined Interface Tension in Quenched QCD using the Histogram Method

We present results for the confinement-deconfinement interface tension ${\sigma }_{cd}$ of quenched QCD. They were obtained by applying Binder’s histogram method to lattices of size $L^2\times L_z\times L_t$ for $L_t=2$ and $L=8,10,12and14$ and various $L_z\in [L,4L]$. The use of a multicanonical algorithm and rectangular geometries have turned out to be crucial for the numerical studies. We also give an estimate for ${\sigma }_{cd}$ at $L_t=4$ using published data.