Tunneling-driven quantum phase transitions in mesoscopic commensurate systems of strongly correlated electrons

Authors
Baldea, I Koppel, H Cederbaum, LS
Citation
I. Baldea et al., Tunneling-driven quantum phase transitions in mesoscopic commensurate systems of strongly correlated electrons, SOL ST COMM, 115(11), 2000, pp. 593-597
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
115
Issue
11
Year of publication
2000
Pages
593 - 597
Database
ISI
SICI code
0038-1098(2000)115:11<593:TQPTIM>2.0.ZU;2-5
Abstract
We present an example demonstrating that CDW-to-CDW and SDW-to-SDW quantum phase transitions driven by tunneling between states characterized by charg e and spin density waves of different symmetries can occur in finite commen surate systems of strongly correlated electrons. These transitions could be studied experimentally, e.g. by optical absorption in mesoscopic systems. (C) 2000 Elsevier Science Ltd. All rights reserved.