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25 April 2024

» arxiv » 1003.2943

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Reliable determination of the order parameter for the D=3 Ising spin glass
Janus Collaboration ; R. Alvarez Banos ; A. Cruz ; L.A. Fernandez ; J. M. Gil-Narvion ; A. Gordillo-Guerrero ; M. Guidetti ; A. Maiorano ; F. Mantovani ; E. Marinari ; V. Martin-Mayor ; J. Monforte-Garcia ; A. Munoz Sudupe ; D. Navarro ; G. Parisi ; S. Perez-Gaviro ; J. J. Ruiz-Lorenzo ; S.F. Schifano ; B. Seoane ; A. Tarancon ; R. Tripiccione ; D. Yllanes ;
Date:	15 Mar 2010
Abstract:	We compute the spin-glass order parameter, qEA, in the low-temperature phase of the D=3 Edwards-Anderson model. Our approach focuses on the connected spatial correlation function, regarded as a function of the spin overlap q. We investigate by means of Finite Size Scaling the phase transition suffered by this correlation function precisely at q=qEA. Thanks to the Janus dedicated computer, we include in the analysis equilibrium data for L=32 lattices, down to temperatures T=0.64Tc. We compute the exponent that rules finite size effects, which turns out to be compatible with the replicon exponent.
Source:	arXiv, 1003.2943
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