In mathematical physics, the diagrammatic Monte Carlo method is based on stochastic summation of Feynman diagrams with controllable error bars.
[1][2] It was developed by Boris Svistunov and Nikolay Prokof'ev.
It was proposed as a generic approach to overcome the numerical sign problem that precludes simulations of many-body fermionic problems.
[3] Diagrammatic Monte Carlo works in the thermodynamic limit, and its computational complexity does not scale exponentially with system or cluster volume.
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