THE EXCHANGE FLUCTUATIONS AND PARAMAGNETISM TO SPIN GLASS TRANSITION |
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| Authors: | SHEN Yu |
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| Affiliation: | Institute of Theoretical Phusics, Academia Sinica P. O. Box 2735, Beijiny, China |
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| Abstract: | In this paper, we introduce a quantity where N is the total number spins, to characterize the randomness of the partition function z. We point out, when Δ=0, the relation lnZ=lnZ is valid for the Sherrington-Kirkpatrick (SK) model,the generalized SK model. It is shown that this quantity can also be used to determine the spin glass transition temperature in the absence of extprnal field with zero average exchange J0. |
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