Superconductivity and superfluidity as universal emergent phenomena |
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| Authors: | Mike Guidry Yang Sun |
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| Affiliation: | 1. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA2. Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China3. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China4. State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Superconductivity (SC) or superfluidity (SF) is observed across a remarkably broad range of fermionic systems: in BCS, cuprate, iron-based, organic, and heavy-fermion superconductors, and in superfluid helium-3 in condensed matter; in a variety of SC/SF phenomena in low-energy nuclear physics; in ultracold, trapped atomic gases; and in various exotic possibilities in neutron stars. The range of physical conditions and differences in microscopic physics defy all attempts to unify this behavior in any conventional picture. Here we propose a unification through the shared symmetry properties of the emergent condensed states, with microscopic differences absorbed into parameters. This, in turn, forces a rethinking of specific occurrences of SC/SF such as high-Tc SC in cuprates, which becomes far less mysterious when seen as part of a continuum of behavior shared by a variety of other systems. |
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| Keywords: | superconductivity superfluidity |
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