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arXiv 2012.12316math.PRmath-phmath.MP
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具有一般参数和斜率的对数-γ聚合物自由能的涨落

Fluctuations of the log-gamma polymer free energy with general parameters and slopes

Guillaume Barraquand, Ivan Corwin, Evgeni Dimitrov

摘要:

我们证明了在$M^{1/3}$标度中,格点$(1,1)$和$(M,N)$之间的对数伽马聚合物的自由能收敛于GUE Tracy-Widom分布,只要$N/M$保持远离零和无穷大的有界。我们证明了这一结果的任何形状参数$θ>0$的反伽马权重的模型,并进一步建立了一个适度的偏差估计的上尾的自由能在这种情况下。最后,我们考虑一个非独立身份证。设置的权重在许多行和列有不同的参数,我们表明,当这些参数的严格缩放的限制自由能波动是由一个概括的Baik-Ben Arous-Péché分布从尖峰随机矩阵与两组参数。

英文摘要:

We prove that the free energy of the log-gamma polymer between lattice points $(1,1)$ and $(M,N)$ converges to the GUE Tracy-Widom distribution in the $M^{1/3}$ scaling, provided that $N/M$ remains bounded away from zero and infinity. We prove this result for the model with inverse gamma weights of any shape parameter $θ>0$ and furthermore establish a moderate deviation estimate for the upper tail of the free energy in this case. Finally, we consider a non i.i.d. setting where the weights on finitely many rows and columns have different parameters, and we show that when these parameters are critically scaled the limiting free energy fluctuations are governed by a generalization of the Baik-Ben Arous-Péché distribution from spiked random matrices with two sets of parameters.

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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