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arXiv 1309.2154cond-mat.dis-nn
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一维长程Ising自旋玻璃中最大动力学势垒的标度

Scaling of the largest dynamical barrier in the one-dimensional long-range Ising spin-glass

Cecile Monthus, Thomas Garel

摘要:

具有随机耦合的长程一维伊辛自旋玻璃以$J(r) \propto r^{-σ}$形式衰减,对于$0 \leq σ<1$呈现自旋玻璃相$T_c(σ)>0$(极限$σ=0$对应于平均场SK模型)。我们使用的特征值方法介绍了我们以前的工作[C。Monthus和T. Garel,J. Stat. P12017(2009)]来测量作为自旋数$N$的函数的在温度$T=T_c(σ)/2$下的平衡时间$t_{eq}(N)$。我们发现在整个区域$0\leqσ<1$中存在具有相同势垒指数$ψ\simeq 0.33$的激活标度$\ln t_{eq}(N) \sim N^ψ$。

英文摘要:

The long-range one-dimensional Ising spin-glass with random couplings decaying as $J(r) \propto r^{-σ}$ presents a spin-glass phase $T_c(σ)>0$ for $0 \leq σ<1$ (the limit $σ=0$ corresponds to the mean-field SK-model). We use the eigenvalue method introduced in our previous work [C. Monthus and T. Garel, J. Stat. Mech. P12017 (2009)] to measure the equilibrium time $t_{eq}(N)$ at temperature $T=T_c(σ)/2$ as a function of the number $N$ of spins. We find the activated scaling $\ln t_{eq}(N) \sim N^ψ$ with the same barrier exponent $ψ\simeq 0.33$ in the whole region $0\leqσ<1$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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