On the type of the temperature phase transition in phi-4 model
Institute for Theoretical Physics, University of Leipzig, Leipzig, Germany
arXiv:1012.5383 [hep-lat] (24 Dec 2010)
The temperature induced phase transition is investigated in the one-component scalar field phi^4 model on a lattice by using Monte Carlo simulations. Due to GPGPU technology used a huge amount of data is generated and treated that gives a possibility to determine the Linde-Weinberg low bound on the coupling constant lambda_0 and investigate the type of the phase transition for a wide interval of coupling values. It is found that for the values of lambda close to this bound a weak-first-order phase transition happens. It converts into a second order phase transition with the increase of lambda. A comparison with analytic calculations in continuum field theory and lattice simulations obtained by other authors is given.
December 27, 2010 by hgpu
Your response
You must be logged in to post a comment.