Static chaos and scaling behaviour in the spin-glass phase
نویسنده
چکیده
We discuss the problem of static chaos in spin glasses. In the case of magnetic eld perturbations, we propose a scaling theory for the spin-glass phase. Using the meaneld approach we argue that some pure states are suppressed by the magnetic eld and their free energy cost is determined by the nite-temperature xed point exponents. In this framework, numerical results suggest that meaneld chaos exponents are probably exact in nite dimensions. If we use the droplet approach, numerical results suggest that the zero-temperature xed point exponent is very close to d 3 2 . In both approaches d = 3 is the lower critical dimension in agreement with recent numerical simulations. 1
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Static chaos and scaling behavior in the spin-glass phase.
We discuss the problem of static chaos in spin glasses. In the case of magnetic field perturbations, we propose a scaling theory for the spin-glass phase. Using the mean-field approach we argue that some pure states are suppressed by the magnetic field and their free energy cost is determined by the finite-temperature fixed point exponents. In this framework, numerical results suggest that mean...
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