ORTHOGONALITY CATASTROPHE IN A COMPOSITE FERMION LIQUID

Authors
LEONARD DJT PORTENGEN T NICOPOULOS VN JOHNSON NF
Citation
Djt. Leonard et al., ORTHOGONALITY CATASTROPHE IN A COMPOSITE FERMION LIQUID, Journal of physics. Condensed matter, 10(27), 1998, pp. 453-459
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
10
Issue
27
Year of publication
1998
Pages
453 - 459
Database
ISI
SICI code
0953-8984(1998)10:27<453:OCIACF>2.0.ZU;2-V
Abstract
We discuss the emergence of an orthogonality catastrophe in the respon se of a composite fermion liquid as the filling factor nu approaches 1 /2m, where m = 1.2. 3.... A tunnelling experiment is proposed in which dramatic changes in the I-V characteristic should be observable as nu is varied. Explicit I-V characteristics calculated within the so-call ed modified random phase approximation, are provided for nu = 1/3 --> 1/2.