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Autor Fytas, Nikolaos G. |
Documentos disponibles escritos por este autor (5)
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It was recently shown [Phys. Rev. Lett. 110, 227201 (2013)] that the critical behavior of the random-field Ising model in three dimensions is ruled by a single universality class. This conclusion was reached only after a proper taming of the lar[...]texto impreso
Fytas, Nikolaos G. ; Martín Mayor, Víctor ; Parisi, Giorgio ; Picco, Marco ; Sourlas, Nicolas | American Physical Society | 2019-06-20We provide a nontrivial test of supersymmetry in the random-field Ising model at five spatial dimensions, by means of extensive zero-temperature numerical simulations. Indeed, supersymmetry relates correlation functions in a D-dimensional disord[...]texto impreso
Fytas, Nikolaos G. ; Martín Mayor, Víctor ; Parisi, Giorgio ; Picco, Marco ; Sourlas, Nicolas | IOP Publishing | 2019-09We present a complementary estimation of the critical exponent alpha of the specific heat of the 5D random-field Ising model from zero-temperature numerical simulations. Our result alpha = 0.12(2) is consistent with the estimation coming from th[...]texto impreso
Fytas, Nikolaos G. ; Martín Mayor, Víctor ; Picco, Marco ; Sourlas, Nicolas | American Physical Society | 2016-06-03By performing a high-statistics simulation of the D = 4 random-field Ising model at zero temperature for different shapes of the random-field distribution, we show that the model is ruled by a single universality class. We compute to a high accu[...]texto impreso
We solve a long-standing puzzle in statistical mechanics of disordered systems. By performing a high-statistics simulation of the D = 3 random-field Ising model at zero temperature for different shapes of the random-field distribution, we show t[...]