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Open Quantum Systems Decoherence
Bloch classification surface for three-band systems
arXiv
Authors: Gilles Abramovici
Year
2024
Paper ID
37508
Status
Preprint
Abstract Read
~2 min
Abstract Words
91
Citations
N/A
Abstract
Topologically protected states can be found in physical systems, that show singularities in some energy contour diagram. These singularities can be characterized by winding numbers, defined on a classification surface, which maps physical state parameters. We have found a classification surface, which applies for three-band hamiltonian systems in the same way than standard Bloch surface does for two-band ones. This generalized Bloch surface is universal in the sense that it classifies a very large class of three-band systems, which we have exhaustively studied, finding specific classification surfaces, applying for each one.
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- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2024 reference point for readers tracking recent quantum research.
- Topologically protected states can be found in physical systems, that show singularities in some energy contour diagram.
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