Please use this identifier to cite or link to this item: doi:10.22028/D291-36867
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Title: Suppression of discontinuous phase transitions by particle diffusion
Author(s): Woo, Chul-Ung
Rieger, Heiko
Noh, Jae Dong
Language: English
Title: Physical review
Volume: 105
Issue: 5
Publisher/Platform: APS
Year of Publication: 2022
DDC notations: 530 Physics
Publikation type: Journal Article
Abstract: We investigate the phase transitions of the q-state Brownian Potts model in two dimensions (2D) comprising Potts spins that diffuse like Brownian particles and interact ferromagnetically with other spins within a fixed distance. With extensive Monte Carlo simulations we find a continuous phase transition from a paramagnetic to a ferromagnetic phase even for q > 4. This is in sharp contrast to the existence of a discontinuous phase transition in the equilibrium q-state Potts model in 2D with q>4. We present detailed numerical evidence for a continuous phase transition and argue that diffusion generated dynamical positional disorder suppresses phase coexistence leading to a continuous transition.
DOI of the first publication: 10.1103/PhysRevE.105.054144
URL of the first publication: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.105.054144
Link to this record: urn:nbn:de:bsz:291--ds-368677
hdl:20.500.11880/33525
http://dx.doi.org/10.22028/D291-36867
ISSN: 2470-0053
Date of registration: 27-Jul-2022
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Physik
Professorship: NT - Prof. Dr. Heiko Rieger
Collections:Die Universitätsbibliographie

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