Interaction-induced enhancement and oscillations of the persistent current

C. Stafford, D. Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The persistent current (Formula presented) in integrable models of multichannel rings with both short- and long-ranged interactions is investigated. (Formula presented) is found to oscillate in sign and increase in magnitude with increasing interaction strength due to interaction-induced correlations in the currents contributed by different channels. For sufficiently strong interactions, the contributions of all channels are found to add constructively, leading to a giant enhancement of (Formula presented) Numerical results confirm that this parity-locking effect is robust with respect to intersubband scattering.

Original languageEnglish (US)
Pages (from-to)R4383-R4386
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
StatePublished - 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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