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Evidence of two distinct dynamic critical exponents in connection with vortex physics
Department of Theoretical Physics, Umeå University.
Department of Theoretical Physics, Umeå University.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
2001 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 87, no 3, 37002- p.Article in journal (Refereed) Published
Abstract [en]

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
URN: urn:nbn:se:ltu:diva-4592DOI: 10.1103/PhysRevLett.87.037002Local ID: 28e745c0-e6c6-11db-8a98-000ea68e967bOAI: diva2:977466
Validerad; 2001; 20061120 (weber)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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