PARITY EFFECT IN A SMALL SUPERCONDUCTING GRAIN - A RIGOROUS RESULT

Authors
TIAN GS TANG LH
Citation
Gs. Tian et Lh. Tang, PARITY EFFECT IN A SMALL SUPERCONDUCTING GRAIN - A RIGOROUS RESULT, Physical review. B, Condensed matter, 58(18), 1998, pp. 12333-12337
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
58
Issue
18
Year of publication
1998
Pages
12333 - 12337
Database
ISI
SICI code
0163-1829(1998)58:18<12333:PEIASS>2.0.ZU;2-N
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 Delta(p) is n onvanishing in such a system. A positive lower bound for Delta(p) is d erived. [S0163-1829(98)05242-4].