This is from a 2007 Geordie Rose talk (CTO of Dwave). He indicated that the difference between quantum annealing where the optimal answer is not guaranteed versus a guaranteed optimal answer approach is the speed with which adjustments are made to the adiabatic (thermal analog system)
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Combinatorics 11 minutes ago
Side note: one reason why I read this site is that it summarizes videos. It makes it possible for me to check the site and do some quick reading while something is compiling or testing.