We evaluate the high temperature limit of the free energy of spin glasses on the hypercube with Hamiltonian $H_N(σ) = σ^T J σ$, where the coupling matrix $J$ is drawn from certain symmetric orthogonally invariant ensembles. Our derivation relates the annealed free energy of these models to a spherical integral, and expresses the limit of the free energy in terms of the limiting spectral measure of the coupling matrix $J$. As an application, we derive the limiting free energy of the Random Orthogonal Model (ROM) at high temperatures, which confirms non-rigorous calculations of Marinari et al. (1994). Our methods also apply to other well-known models of disordered systems, including the SK and Gaussian Hopfield models.
Geometry and temperature chaos in mixed spherical spin glasses at low temperature - the perturbative regime
我们研究了混合球形$p$自旋玻璃模型在低温下的吉布斯测度,在(部分)1-RSB制度,特别是包括,在适当的意义上,接近纯的模型。我们表明,吉布斯措施集中在深临界点周围的(扩展)哈密顿限制到半径$\sqrt N q_\star$,其中$q_\star^2$是最右边的点,在重叠分布的支持球带。我们还表明,相关的临界点是两两正交的两个不同的低温。这使我们能够解释为什么这些模型会出现温度混沌,而不是纯球形模型。
One-sided large deviations for the ground-state energy of spin glasses
NYU-ECNU Institute of Mathematical Sciences, NYU Shanghai(纽约大学-华东师范大学数学科学研究所,上海纽约大学);Department of Mathematics, ENS Lyon and CNRS(里昂高等师范学校数学系与法国国家科学研究中心);Department of Mathematics, Syracuse University(雪城大学数学系);Department of Mathematics, King’s College(国王学院数学系)
Uniform Asymptotics for Polynomials Orthogonal With Respect to a General Class of Discrete Weights and Universality Results for Associated Ensembles
这是“Uniform Asymptotics for Polynomials Orthogonal With Respect to a General Class of Discrete Weights and Universality Results for Associated Ensembles:Announcement of Results”的完整版本,出现在此服务器上,也发表在IMRN 2003,第15号,第15页。821-858.
Uniform Asymptotics for Polynomials Orthogonal With Respect to a General Class of Discrete Weights and Universality Results for Associated Ensembles: Announcement of Results