Scaling limits of planar symplectic ensembles

Akemann G, Byun S-S, Kang N-G (2021)
arXiv:2106.09345.

Preprint | Englisch
 
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Autor*in
Akemann, GernotUniBi; Byun, Sung-Soo; Kang, Nam-Gyu
Abstract / Bemerkung
We consider various asymptotic scaling limits N→∞ for the 2N complex eigenvalues of non-Hermitian random matrices in the symmetry class of the symplectic Ginibre ensemble. These are known to be integrable, forming Pfaffian point processes, and we obtain limiting expressions for the corresponding kernel for different potentials. The first part is devoted to the symplectic Ginibre ensemble with a Gaussian potential. We obtain the asymptotic at the edge of the spectrum in the vicinity of the real line. The unifying form of the kernel allows us to make contact with the bulk scaling along the real line and with the edge scaling away from the real line, where we recover the known determinantal process of the complex Ginibre ensemble. Part two covers ensembles of Mittag-Leffler type with a singularity at the origin. For potentials Q(ζ)=|ζ|2λ−(2c/N)log|ζ|, with λ>0 and c>−1, the limiting kernel obeys a linear differential equation of fractional order 1/λ at the origin. For integer m=1/λ it can be solved in terms of Mittag-Leffler functions. In the last part, we derive the Ward's equation for a general class of potentials as a tool to investigate universality. This allows us to determine the functional form of kernels that are translation invariant up to its integration domain.
Erscheinungsjahr
2021
Zeitschriftentitel
arXiv:2106.09345
Page URI
https://pub.uni-bielefeld.de/record/2958528

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Akemann G, Byun S-S, Kang N-G. Scaling limits of planar symplectic ensembles. arXiv:2106.09345. 2021.
Akemann, G., Byun, S. - S., & Kang, N. - G. (2021). Scaling limits of planar symplectic ensembles. arXiv:2106.09345
Akemann, G., Byun, S. - S., and Kang, N. - G. (2021). Scaling limits of planar symplectic ensembles. arXiv:2106.09345.
Akemann, G., Byun, S.-S., & Kang, N.-G., 2021. Scaling limits of planar symplectic ensembles. arXiv:2106.09345.
G. Akemann, S.-S. Byun, and N.-G. Kang, “Scaling limits of planar symplectic ensembles”, arXiv:2106.09345, 2021.
Akemann, G., Byun, S.-S., Kang, N.-G.: Scaling limits of planar symplectic ensembles. arXiv:2106.09345. (2021).
Akemann, Gernot, Byun, Sung-Soo, and Kang, Nam-Gyu. “Scaling limits of planar symplectic ensembles”. arXiv:2106.09345 (2021).

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