Why this topic?
Short answer - fun stuff to talk about.
Percolation is a great way to teach Phase Transitions.
Do I need to define Percolation?
Wolfhard has 12 papers on Percolation.
The study of percolation did start not too far from here, at Harwell.
Percolation began in the early fifties, christened by John
Hammersley, a probablist, see his account.
It moved to physics for a while, but nowadays seems to be hot again in the probability community.
Percolation is also about 60 years old.
It has always been hard to find a lot of real condensed matter
applications. One of these resulted in my only non-series paper with
I will conclude this talk with an especially cute boostrap percolation one, relevant to creating diamond membranes for quantum computing.
New activity in diffusion percolation (inverse of bootstrap)
at TAU materials right now.