Abstract
The parity effect in an ultrasmall superconducting grain is examined. By applying a generalized version of Lieb’s spin-reflection positivity technique, we show rigorously that the parity parameter (Formula presented) is nonvanishing in such a system. A positive lower bound for (Formula presented) is derived.
Original language | English |
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Pages (from-to) | 12333-12337 |
Number of pages | 5 |
Journal | Physical Review B |
Volume | 58 |
Issue number | 18 |
DOIs | |
Publication status | Published - 1998 |
Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics