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Diagrammatic Quantum Monte Carlo for Two-Body Problems: Applied to Excitons
Accurate numerical solution exciton solid monte carlo simulation catamaran green function feynman electron hole
2014/12/22
We present a novel method for the precise numeric solution of the irreducible two-body problem and apply it to excitons in solids. The approach is based on the Monte Carlo simulation of the two-body G...
Bold diagrammatic Monte Carlo: A generic sign-problem tolerant technique for polaron models and possibly interacting many-body problems
Monte carlo feynman diagrams reforming particles breeding the particles
2014/12/20
We develop a Monte Carlo scheme for sampling series of Feynman diagrams for the proper self-energy, which are self-consistently expressed in terms of renormalized particle propagators. This approach i...
A Remark on One-Dimensional Many-Body Problems with Point Interactions
Remark One-Dimensional Many-Body Problems Point Interactions
2010/10/15
The integrability of one dimensional quantum mechanical many-body problems with general contact interactions is extensively studied. It is shown that besides the pure (repulsive or attractive) δ-funct...