Thursday, August 14, 2014

Percolation Theory

Def :- Its a subject describing connected clusters in random graph.

The main objective of this subject could be explained by the following example :- Suppose a liquid is pour on the top of a porous material. Will the liquid be able to  make its way from hole to hole and reach the bottom?

The problem is simulated as follow. A n*n or higher size grid is assumed and where each edge/bond is opens with probability p and close with probability 1-p.  We have to find that whether there is a way from one side of the grid to other side. 

Percolation Graph in a 3D grid
Bond Percolation
One interesting result is here. We can found a probability p* higher than this the graph will almost be connected and lower than this the graph has higher probability to not to be connected.

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