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Perturbation theory of a superconducting 0 − π impurity quantum phase transition
A single-level quantum dot with Coulomb repulsion attached to two superconducting leads is studied via the perturbation expansion in the interaction strength. We use the Nambu formalism and the standard many-body diagrammatic representation of the impurity Green functions to formulate the Matsubara...
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| Udgivet i: | Sci Rep |
|---|---|
| Main Authors: | , , , |
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Nature Publishing Group
2015
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4351544/ https://ncbi.nlm.nih.gov/pubmed/25744137 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep08821 |
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