Nonperturbative phase diagram of interacting disordered Majorana nanowires
| Autor: | François Crépin, Gergely Zaránd, Pascal Simon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Physics
Superconductivity Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Superconducting wire FOS: Physical sciences engineering.material Condensed Matter Physics Space (mathematics) Condensed Matter::Disordered Systems and Neural Networks Electronic Optical and Magnetic Materials MAJORANA Condensed Matter - Strongly Correlated Electrons Pairing Phase (matter) Condensed Matter::Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) engineering Symmetry breaking Phase diagram |
| Popis: | We develop a Gaussian variational approach in replica space to investigate the phase diagram of a one-dimensional interacting disordered topological superconducting wire in the strong coupling regime. This method allows for a non-perturbative treatment in the disorder strength, electron- electron interactions and the superconducting pairing amplitude. We find only two stable phases: a topological superconducting phase, and a glassy, non-topological localized phase, characterized by replica symmetry breaking. 9 pages, 2 figures |
| Databáze: | OpenAIRE |
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