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- W4385964581 abstract "A class of 2 X 2 random-matrix models is introduced for which the Brody distribution is the exact eigenvalue spacing distribution. The matrix elements are linear combinations of an exponential random variable raised to various powers that depend on the Brody parameter. The random matrices introduced here differ from those of the Gaussian Orthogonal Ensemble (GOE) in three important ways: the matrix elements are not independent and identically distributed (i.e., not IID) nor Gaussian-distributed, and the matrices are not necessarily real and/or symmetric. The first two features arise from dropping the classical independence assumption, and the third feature arises from dropping the quantum-mechanical conditions that are imposed in the construction of the GOE. In particular, the hermiticity condition, which in the present model, is a sufficient but not necessary condition for the eigenvalues to be real, is not imposed. Consequently, complex non-Hermitian 2 X 2 random matrices with real or complex eigenvalues can also have spacing distributions that are intermediate between those of the Poisson and Wigner classes. Numerical examples are provided for different types of random matrices, including complex-symmetric matrices with real or complex-conjugate eigenvalues." @default.
- W4385964581 created "2023-08-18" @default.
- W4385964581 creator A5048543374 @default.
- W4385964581 date "2023-08-02" @default.
- W4385964581 modified "2023-09-23" @default.
- W4385964581 title "A class of 2 X 2 correlated random-matrix models with Brody spacing distribution" @default.
- W4385964581 doi "https://doi.org/10.48550/arxiv.2308.01514" @default.
- W4385964581 hasPublicationYear "2023" @default.
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