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arXiv · 1706.06463

Analytical results for Green's functions of lattice fermions

A. Komnik·S. Heinze
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Abstract

We present a further development of methods for analytical calculations of Green's functions of lattice fermions based on recurrence relations. Applying it to tight-binding systems and topological superconductors in different dimensions we obtain a number of new results. In particular we derive an explicit expression for arbitrary Green's function of an open Kitaev chain and discover non-local fermionic corner states in a 2D p-wave superconductor.

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A. Komnik, S. Heinze. 2017-06-20. Analytical results for Green's functions of lattice fermions. https://doi.org/10.1103/physrevb.96.155103

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