Strong-coupling formula for momentum-dependent susceptibilities in dynamical mean-field theory
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DOI: 10.1103/physrevb.99.165134
Abstract: Computing momentum-dependent susceptibilities in the dynamical mean-field theory (DMFT) requires solving the Bethe-Salpeter equation, which demands large computational cost. Exploiting the strong-coupling feature of local fluctuations, we derive a simplified formula that can be solved… read more here.
Keywords: dependent susceptibilities; strong coupling; susceptibilities dynamical; dynamical mean ... See more keywords