Matrix Kesten recursion, inverse-Wishart ensemble and fermions in a Morse potential
نویسندگان
چکیده
The random variable $1+z_1+z_1z_2+\dots$ appears in many contexts and was shown by Kesten to exhibit a heavy tail distribution. We consider natural extensions of this its associated recursion $N \times N$ matrices either real symmetric $\beta=1$ or complex Hermitian $\beta=2$. In the continuum limit recursion, we show that matrix distribution converges inverse-Wishart ensemble matrices. full dynamics is solved using mapping $N$ fermions Morse potential, which are non-interacting for At finite eigenvalues exhibits tails, generalizing Kesten's results scalar case. density potential studied large $N$, power-law eigenvalue related properties so-called determinantal Bessel process describes hard edge universality For discrete free probability limit, obtain self-consistent equation stationary relation our recent works Rider Valk\'o, Grabsch Texier, as well Ossipov, discussed.
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ژورنال
عنوان ژورنال: Journal of Physics A
سال: 2021
ISSN: ['1751-8113', '1751-8121']
DOI: https://doi.org/10.1088/1751-8121/abfc7f