https://doi.org/10.1140/epjb/s10051-024-00690-8
Regular Article - Solid State and Materials
Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder
Institut für Mathematische Physik, Technische Universität Braunschweig, Mendelssohnstraße 3, 38106, Braunschweig, Germany
b
c.karrasch@tu-braunschweig.de
Received:
21
February
2024
Accepted:
18
March
2024
Published online:
8
August
2024
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 were 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.
Graphical abstract: Phase diagram as a function of the chemical potential and the disorder strength for repulsive interactions
© The Author(s) 2024
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