Cristin-resultat-ID: 418188
Sist endret: 20. januar 2015 14:03
NVI-rapporteringsår: 2005
Resultat
Vitenskapelig artikkel
2005

Instanton correlators and phase transitions in two- and three-dimensional logarithmic plasmas

Bidragsytere:
  • Kjetil Børkje
  • Steinar Kragset og
  • Asle Sudbø

Tidsskrift

Physical Review B. Condensed Matter and Materials Physics
ISSN 1098-0121
e-ISSN 1550-235X
NVI-nivå 0

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2005
Volum: 71
Hefte: 085112

Importkilder

Isi-ID: 000228065300028

Beskrivelse Beskrivelse

Tittel

Instanton correlators and phase transitions in two- and three-dimensional logarithmic plasmas

Sammendrag

The existence of a discontinuity in the inverse dielectric constant of the two-dimensional (2D) Coulomb gas is demonstrated on purely numerical grounds. This is done by expanding the free energy in an applied twist and performing a finite-size scaling analysis of the coefficients of higher-order terms. The phase transition, driven by unbinding of dipoles, corresponds to the Kosterlitz-Thouless transition in the 2D XY model. The method developed is also used for investigating the possibility of a Kosterlitz-Thouless phase transition in a three-dimensional system of point charges interacting with a logarithmic pair-potential, a system related to effective theories of low-dimensional strongly correlated systems. We also contrast the finite-size scaling of the fluctuations of the dipole moments of the two-dimensional Coulomb gas and the three-dimensional logarithmic system to those of the three-dimensional Coulomb gas. ©2005 The American Physical Society

Bidragsytere

Aktiv cristin-person

Kjetil Børkje

  • Tilknyttet:
    Forfatter
    ved Institutt for fysikk ved Norges teknisk-naturvitenskapelige universitet

Steinar Kragset

  • Tilknyttet:
    Forfatter
    ved Institutt for fysikk ved Norges teknisk-naturvitenskapelige universitet

Asle Sudbø

  • Tilknyttet:
    Forfatter
    ved Institutt for fysikk ved Norges teknisk-naturvitenskapelige universitet
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