Wavefunction renormalization for the Coulomb gas by the Wegner-Houghton renormalization group method

Authors
Nandori, I Polonyi, J Sailer, K
Citation
I. Nandori et al., Wavefunction renormalization for the Coulomb gas by the Wegner-Houghton renormalization group method, PHIL MAG B, 81(10), 2001, pp. 1615-1619
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICSELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
ISSN journal
13642812 → ACNP
Volume
81
Issue
10
Year of publication
2001
Pages
1615 - 1619
Database
ISI
SICI code
1364-2812(200110)81:10<1615:WRFTCG>2.0.ZU;2-G
Abstract
The renormalization group (RG) flow for the sine-Gordon model is determined by means of the method of Wegner and Houghton in the next to leading order of the derivative expansion. For small values of the fugacity this agrees with the well-known RG flow of the two-dimensional Coulomb gas found in the dilute-gas approximation and a systematic way of obtaining higher-order co rrections to this approximation is given.