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 |
|---|---|
| Pages (from-to) | 12333-12337 |
| Number of pages | 5 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 58 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 1998 |
Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics