On the determinantal structure of conditional overlaps for the complex Ginibre ensemble
Akemann G, Tribe R, Tsareas A, Zaboronski O (2020)
Random Matrices: Theory and Applications 9(4): 2050015.
Zeitschriftenaufsatz
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Autor*in
Akemann, GernotUniBi;
Tribe, Roger;
Tsareas, Athanasios;
Zaboronski, Oleg
Einrichtung
Abstract / Bemerkung
We continue the study of joint statistics of eigenvectors and eigenvalues initiated in the seminal papers of Chalker and Mehlig. The principal object of our investigation is the expectation of the matrix of overlaps between the left and the right eigenvectors for the complex N x N Ginibre ensemble, conditional on an arbitrary number k 1, 2 , ... of complex eigenvalues. These objects provide the simplest generalization of the expectations of the diagonal overlap (k = 1) and the off-diagonal overlap (k = 2) considered originally by Chalker and Mehlig. They also appear naturally in the problem of joint evolution of eigenvectors and eigenvalues for Brownian motions with values in complex matrices studied by the Krakow school. We find that these expectations possess a determinantal structure, where the relevant kernels can be expressed in terms of certain orthogonal polynomials in the complex plane. Moreover, the kernels admit a rather tractable expression for all N >= 2. This result enables a fairly straightforward calculation of the conditional expectation of the overlap matrix in the local bulk and edge scaling limits as well as the proof of the exact algebraic decay and asymptotic factorization of these expectations in the bulk.
Stichworte
Complex Ginibre ensemble;
bi-orthogonal polynomials;
Chalker-Mehlig;
formula
Erscheinungsjahr
2020
Zeitschriftentitel
Random Matrices: Theory and Applications
Band
9
Ausgabe
4
Art.-Nr.
2050015
ISSN
2010-3263
eISSN
2010-3271
Page URI
https://pub.uni-bielefeld.de/record/2945599
Zitieren
Akemann G, Tribe R, Tsareas A, Zaboronski O. On the determinantal structure of conditional overlaps for the complex Ginibre ensemble. Random Matrices: Theory and Applications. 2020;9(4): 2050015.
Akemann, G., Tribe, R., Tsareas, A., & Zaboronski, O. (2020). On the determinantal structure of conditional overlaps for the complex Ginibre ensemble. Random Matrices: Theory and Applications, 9(4), 2050015. doi:10.1142/S201032632050015X
Akemann, Gernot, Tribe, Roger, Tsareas, Athanasios, and Zaboronski, Oleg. 2020. “On the determinantal structure of conditional overlaps for the complex Ginibre ensemble”. Random Matrices: Theory and Applications 9 (4): 2050015.
Akemann, G., Tribe, R., Tsareas, A., and Zaboronski, O. (2020). On the determinantal structure of conditional overlaps for the complex Ginibre ensemble. Random Matrices: Theory and Applications 9:2050015.
Akemann, G., et al., 2020. On the determinantal structure of conditional overlaps for the complex Ginibre ensemble. Random Matrices: Theory and Applications, 9(4): 2050015.
G. Akemann, et al., “On the determinantal structure of conditional overlaps for the complex Ginibre ensemble”, Random Matrices: Theory and Applications, vol. 9, 2020, : 2050015.
Akemann, G., Tribe, R., Tsareas, A., Zaboronski, O.: On the determinantal structure of conditional overlaps for the complex Ginibre ensemble. Random Matrices: Theory and Applications. 9, : 2050015 (2020).
Akemann, Gernot, Tribe, Roger, Tsareas, Athanasios, and Zaboronski, Oleg. “On the determinantal structure of conditional overlaps for the complex Ginibre ensemble”. Random Matrices: Theory and Applications 9.4 (2020): 2050015.
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