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Superfluid density, Josephson relation and pairing fluctuations in a multi-component fermion superfluid
In this work, a Josephson relation is generalized to a multi-component fermion superfluid. Superfluid density is expressed through a two-particle Green function for pairing states. When the system has only one gapless collective excitation mode, the Josephson relation is simplified, which is given i...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Nature Publishing Group UK
2021
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8575947/ https://www.ncbi.nlm.nih.gov/pubmed/34750432 http://dx.doi.org/10.1038/s41598-021-01261-y |