QUANTUM PERSISTENT CURRENTS AND CLASSICAL PERIODIC-ORBITS

Authors
VONOPPEN F RIEDEL EK
Citation
F. Vonoppen et Ek. Riedel, QUANTUM PERSISTENT CURRENTS AND CLASSICAL PERIODIC-ORBITS, Physical review. B, Condensed matter, 48(12), 1993, pp. 9170-9173
Citations number
25
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
12
Year of publication
1993
Pages
9170 - 9173
Database
ISI
SICI code
0163-1829(1993)48:12<9170:QPCACP>2.0.ZU;2-0
Abstract
Semiclassical theory relates mesoscopic persistent currents to classic al periodic orbits. This is used to demonstrate that persistent curren ts are a sensitive probe of quantum chaos, exhibiting different univer sal dependences on the Fermi velocity for integrable and for completel y chaotic ballistic microstructures. A study of the Sinai-billiard geo metry reveals that the universality classes do not coincide with those of the spectral spacing distribution. Our conclusions are supported b y numerical calculations.