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arXiv · 0911.1932

RPA Green's Functions of the Anisotropic Heisenberg Model

Andre Johannes Stoffel·Miklos Gulacsi
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Abstract

We solve in random-phase approximation the anisotropic Heisenberg model, including nearest and next-nearest neighbour interactions by calculating all Green's functions and pair correlation functions in a cumulant decoupling scheme. The general exposition is pedagogic in tone and is intended to be accessible to any graduate student or physicist who is not an expert in the field.

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Andre Johannes Stoffel, Miklos Gulacsi. 2009-11-10. RPA Green's Functions of the Anisotropic Heisenberg Model. https://doi.org/10.1080/14786430902973866

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