News and Views
Nature Physics 1, 83 - 84 (2005)
doi:10.1038/nphys158
Subject Categories: Condensed-matter physics | Quantum physics
Quantum coherence: Just what is superconductivity?
Steven M. Girvin1
- Steven M. Girvin is in the Department of Physics, Yale University, New Haven, Connecticut, 06520-8120 USA. e-mail: steven.girvin@yale.edu
Abstract
Whether or not a superconductor is truly superconducting depends on its size and even its shape. In a geometry intermediate between one and two dimensions, it seems a thin film does not reach a state of zero resistance except at zero temperature.
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