Screening in clean mesoscopic rings

Y. Avishai, G. Braverman

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The dielectic function for electrons restricted to move on a clean one-dimensional ring is calculated in the random-phase approximation (RPA) and used for the computation of the Coulomb interaction energy. As a possible application we consider the situation in which the ring is threaded by a magnetic flux. It is found that the Coulomb energy does not depend on the magnetic flux (although the dielectric function does). This result confirms (within the RPA) the conjecture that in one-dimensional clean rings, the Coulomb interaction does not affect the persistent current of a noninteracting electron gas.

Original languageEnglish
Pages (from-to)12135-12142
Number of pages8
JournalPhysical Review B
Issue number16
StatePublished - 1 Jan 1995

ASJC Scopus subject areas

  • Condensed Matter Physics


Dive into the research topics of 'Screening in clean mesoscopic rings'. Together they form a unique fingerprint.

Cite this