Impacto
Downloads
Downloads per month over past year
Campos, Isabel and Fernández Pérez, Luis Antonio and Tarancón, Alfonso (1997) Antiferromagnetic fourdimensional O(4) model. Physical review D, 55 (5). pp. 29652973. ISSN 15507998

PDF
146kB 
Official URL: http://doi.org/10.1103/PhysRevD.55.2965
URL  URL Type 

http://journals.aps.org/  Publisher 
Abstract
We study the phase diagram of the fourdimensional O(4) model with first (β_(1)) and second (β2) neighbor couplings, especially in the β_(2) < 0 region, where we find a line of transitions which seems to be second order. We also compute the critical exponents on this line at the point β_(1) = 0 (F_(4) lattice) by finitesize scaling techniques up to a lattice size of 24, these exponents being different from the meanfield ones.
Item Type:  Article 

Additional Information:  © 1997 The American Physical Society. The authors are grateful to J. L. Alonso, H. G. Ballesteros, V. MartínMayor, J. J. RuizLorenzo, C. L. Ullod, and D. Íñiguez for helpful discussions and comments. We thank especially J. M. Carmona for useful discussions concerning the logarithmic corrections. One of us (I.C.) wishes to thank R. D. Kenway for this kind hospitality at the Department of Physics and Astronomy, University of Edinburgh, as well as to Edinburgh Parallel Computing Center (EPCC) for computing facilities where part of these computations have been done under the financial support of TRACSEC program. This work was partially supported by CICyT AEN951284, and AEN961670. I.C. thanks the Ministerio de Educación y Ciencia for financial support. 
Uncontrolled Keywords:  Stackedtriangular antiferromagnets; Scalarfermion model; Phasetransitions; MonteCarlo; Isingmodel; Triviality; Systems; Diagram. 
Subjects:  Sciences > Physics Sciences > Physics > PhysicsMathematical models 
ID Code:  41110 
Deposited On:  07 Feb 2017 11:44 
Last Modified:  07 Feb 2017 11:44 
Origin of downloads
Repository Staff Only: item control page