A matrix model of a non-Hermitian $\beta$-ensemble

التفاصيل البيبلوغرافية
العنوان: A matrix model of a non-Hermitian $\beta$-ensemble
المؤلفون: Mezzadri, Francesco, Taylor, Henry
سنة النشر: 2023
المجموعة: Mathematics
Mathematical Physics
مصطلحات موضوعية: Mathematical Physics, Mathematics - Probability
الوصف: We introduce the first random matrix model of a complex $\beta$-ensemble. The matrices are tridiagonal and can be thought of as the non-Hermitian analogue of the Hermite $\beta$-ensembles discovered by Dumitriu and Edelman (J. Math. Phys., Vol. 43, 5830 (2002)). The main feature of the model is that the exponent $\beta$ of the Vandermonde determinant in the joint probability density function (j.p.d.f.) of the eigenvalues can take any value in $\mathbb{R}_+$. However, when $\beta=2$, the j.p.d.f. does not reduce to that of the Ginibre ensemble, but it contains an extra factor expressed as a multidimensional integral over the space of the eigenvectors.
Comment: 23 pages, 2 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2305.13184
رقم الأكسشن: edsarx.2305.13184
قاعدة البيانات: arXiv