The Spectral Coupled Cluster Method with k dependency for strongly correlated lattices

2017/01/30 by Alessandro Mirone, Mirone, Alessandro
Physics and Astronomy · Mathematics · Materials Science · #Theoretical and Computational Physics #Random Matrices and Applications #Material Dynamics and Properties

paper · pdf · doi:10.48550/arxiv.1701.08542

Abstract

We adapt the Coupled Cluster Method to solid state strongly correlated lattice Hamiltonians extending the Coupled Cluster linear response method to the calculation of electronic spectra and obtaining the space-time Fourier transforms of generic Green's functions. We apply our method to the MnO₂ plane with orbital and magnetic ordering, to interpret electron energy loss experimental data, and to the Hubbard model, where we get insight into a possible pairing mechanism.

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