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arXiv · 2402.12897

Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder

K. S. C. Decker·C. Karrasch
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Abstract

We document the ground state phase diagram of the one-dimensional Kitaev chain with quasi-periodic disorder in the presence of two-body interactions. Our data was obtained for systems of $L=1000$ sites using large-scale density matrix renormalization group numerics and is benchmarked against known results for the clean system. We demonstrate that moderate quasi-periodic disorder stabilizes the topological phase both for repulsive and attractive interactions. For larger disorder strengths, the system features re-entrance behavior and multiple phase transitions.

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K. S. C. Decker, C. Karrasch. 2024-02-20. Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder. https://doi.org/10.1140/epjb%2Fs10051-024-00690-8

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