Non-perturbative series expansion of Green's functions: the anatomy of resonant inelastic X-ray scattering in doped Hubbard model
We present a non-perturbative, divergence-free series expansion of Green's functions using effective operators. The method is especially suited for computing correlators of complex operators as a series of correlation functions of simpler forms. We apply the method to study low-energy excitatio...
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| Main Authors: | , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
October 4, 2018
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| In: |
Arxiv
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| Online Access: | Verlag, Volltext: http://arxiv.org/abs/1711.03780
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| Author Notes: | Yi Lu and Maurits W. Haverkort |