Evidence of two distinct dynamic critical exponents in connection with vortex physics
2001 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 87, no 3, 37002- p.Article in journal (Refereed) Published
The dynamic critical exponent z is determined from numerical simulations for the three-dimensional (3D) lattice Coulomb gas (LCG) and the 3D XY models with relaxational dynamics. It is suggested that the dynamics is characterized by two distinct dynamic critical indices z0 and z related to the divergence of the relaxation time τ by τ∝ξz0 and τ∝k-z, where ξ is the correlation length and k the wave vector. The values determined are z0≈1.5 and z≈1 for the 3D LCG and z0≈1.5 and z≈2 for the 3D XY model. Comparisons with other results are discussed.
Place, publisher, year, edition, pages
2001. Vol. 87, no 3, 37002- p.
Research subject Fysik
IdentifiersURN: urn:nbn:se:ltu:diva-4592DOI: 10.1103/PhysRevLett.87.037002Local ID: 28e745c0-e6c6-11db-8a98-000ea68e967bOAI: oai:DiVA.org:ltu-4592DiVA: diva2:977466
Validerad; 2001; 20061120 (weber)2016-09-292016-09-29Bibliographically approved