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Critical behavior of the three-dimensional Ising spin glass



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Ballesteros, H. G. y Cruz, A. y Fernández Pérez, Luis Antonio y Martín Mayor, Víctor y Pech, J. y Ruiz Lorenzo, J. J. y Tarancón, A. y Téllez, P. y Ullod, C. L. y Ungil, C. (2000) Critical behavior of the three-dimensional Ising spin glass. Physical review B, 62 (21). pp. 14237-14245. ISSN 1098-0121

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URL Oficial: http://doi.org/10.1103/PhysRevB.62.14237

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We have simulated, using parallel tempering, the three-dimensional Ising spin glass model with binary couplings in a helicoidal geometry. The largest lattice (L520) has been studied using a dedicated computer (the SUE machine). We have obtained, measuring the correlation length in the critical region, strong evidence for a second-order finite-temperature phase transition, ruling out other possible scenarios like a KosterlitzThouless phase transition. Precise values for the ν and ƞ critical exponents are also presented.

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© 2000 The American Physical Society. We acknowledge discussions with E. Marinari and G. Parisi. We are grateful for the partial financial support from CICyT (AEN97-1680, AEN97-1693, AEN99-0990, and PB98-0842) and DGA (P46/97). V.M-M. was supported by a M.E.C. The computations have been carried out using the RTNN machines (Universidad de Zaragoza and Universidad
Complutense de Madrid) and the dedicated machine SUE
(Universidad de Zaragoza).

Palabras clave:Antiferromagnetic RP(2) model; Monte-Carlo simulations; Mean field-theory; 3 dimensions; Cirtical exponents; Correlation length; Replica symmetry; Transitions; Equilibrium; Dynamics.
Materias:Ciencias > Física
Ciencias > Física > Física-Modelos matemáticos
Código ID:40445
Depositado:13 Dic 2016 11:35
Última Modificación:13 Dic 2016 11:35

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