Determination of the critical exponent β in site percolation using average occupation


Proceedings of the 29th Samahang Pisika ng Pilipinas Physics Congress, University of the Philippines Diliman, Quezon City, 24–26 Oct 2011, SPP-2011-048.


Using the Average Occupation Probability in site percolation, the critical exponent β for a lattice (L × L) is determined. The results for different lattice sizes show that as the lattice becomes larger, the calculated β agrees better with that obtained from 2D scaling theory. There appears a common range of p-pc which can be used for any L to compute for β. We estimate that a minimum lattice size of 200 × 200 is necessary for the procedure to yield an acceptable value of the critical exponent.