Duality and multicritical point of two-dimensional spin glasses
نویسندگان
چکیده
منابع مشابه
epsilon expansion for the Nishimori multicritical point of spin glasses.
The renormalization-group recursion relations obtained by Chen and Lubensky for the multicritical point associated with simultaneous critical fluctuations in both the spin-glass and ferromagnetic order are reanalyzed. To first order in ε==6-d we find that the multicritical fixed point is located inside the Nishimori manifold and that the scaling axes agree with those obtained recently from gene...
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After briefly describing the present status of the spin glass theory, we present a conjecture on the exact location of the multicritical point in the phase diagram of finite-dimensional spin glasses. The theory enables us to understand in a unified way many numerical results for two-, threeand four-dimensional models including the ±J Ising model, random Potts model, random lattice gauge theory,...
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We use transfer-matrix and finite-size scaling methods to investigate the location and properties of the multicritical point of two-dimensional Ising spin glasses on square, triangular, and honeycomb lattices with both binary and Gaussian disorder distributions. For square and triangular lattices with binary disorder, the estimated position of the multicritical point is in numerical agreement w...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2003
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(02)01791-0