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Phase transitions for the cavity approach to the clique problem on random graphs
Phase transitions the cavity graphs
2010/11/17
We give a rigorous proof of two phase transitions for a disordered system designed to find large cliques inside Erdos random graphs. Such a system is associated with a conservative probabilistic cellu...
Thermal Operator Representation of Feynman Graphs
Quantum field theory Finite temperature and thermal operator
2010/9/29
In this talk I describe an interesting relation between Feynman graphs at finite temperature and chemical potential and the corresponding ones at zero temperature. The operator relating the two which ...