$q$-deformed Gaussian unitary ensemble: spectral moments and genus-type expansions

التفاصيل البيبلوغرافية
العنوان: $q$-deformed Gaussian unitary ensemble: spectral moments and genus-type expansions
المؤلفون: Byun, Sung-Soo, Forrester, Peter J., Oh, Jaeseong
سنة النشر: 2024
المجموعة: Mathematics
Mathematical Physics
مصطلحات موضوعية: Mathematics - Probability, Mathematical Physics, Mathematics - Combinatorics
الوصف: The eigenvalue probability density function of the Gaussian unitary ensemble permits a $q$-extension related to the discrete $q$-Hermite weight and corresponding $q$-orthogonal polynomials. A combinatorial counting method is used to specify a positive sum formula for the spectral moments of this model. The leading two terms of the scaled $1/N^2$ genus-type expansion of the moments are evaluated explicitly in terms of the incomplete beta function. Knowledge of these functional forms allows for the smoothed leading eigenvalue density and its first correction to be determined analytically.
Comment: 28 pages, 6 figures
نوع الوثيقة: Working Paper
الوصول الحر: http://arxiv.org/abs/2404.03400Test
رقم الانضمام: edsarx.2404.03400
قاعدة البيانات: arXiv