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Uhlmann number in translational invariant systems
We define the Uhlmann number as an extension of the Chern number, and we use this quantity to describe the topology of 2D translational invariant Fermionic systems at finite temperature. We consider two paradigmatic systems and we study the changes in their topology through the Uhlmann number. Throu...
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| Published in: | Sci Rep |
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| Main Authors: | , , , |
| Format: | Artigo |
| Language: | Inglês |
| Published: |
Nature Publishing Group UK
2019
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| Subjects: | |
| Online Access: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6591291/ https://ncbi.nlm.nih.gov/pubmed/31235825 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-019-45546-9 |
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