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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… Click to show full 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 noteworthy results. In particular, we derive an explicit expression for an arbitrary Green's function of an open Kitaev chain, and we discover nonlocal fermionic corner states in a two-dimensional $p$-wave superconductor.
Keywords:
functions lattice;
results green;
green functions;
analytical results;
lattice fermions
Journal Title: Physical Review B
Year Published: 2017
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Journal Title: Physical Review B
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!