The Laguerre Unitary Process
@article{Ipsen2019TheLU, title={The Laguerre Unitary Process}, author={J. R. Ipsen}, journal={arXiv: Mathematical Physics}, year={2019} }
We define a new matrix-valued stochastic process with independent stationary increments from the Laguerre Unitary Ensemble, which in a certain sense may be considered a matrix generalisation of the gamma process. We show that eigenvalues of this matrix-valued process forms a spatiotemporal determinantal point process and give an explicit expression for the correlation kernel in terms of Laguerre polynomials. Furthermore, we show that in an appropriate long time scaling limit, this correlation…
One Citation
Determinantal structures for Bessel fields
- Mathematics
- 2021
A Bessel field B = {B(α, t), α ∈ N0, t ∈ R} is a two-variable random field such that for every (α, t), B(α, t) has the law of a Bessel point process with index α. The Bessel fields arise as hard edge…
References
SHOWING 1-10 OF 33 REFERENCES
Determinantal correlations for classical projection processes
- Mathematics
- 2008
Recent applications in queuing theory and statistical mechanics have isolated the process formed by the eigenvalues of successive sub-matrices of the GUE. Analogous eigenvalue processes, formed in…
Eigenvalues of the Laguerre Process as Non-Colliding Squared Bessel Processes
- Mathematics
- 2001
Let $A(t)$ be an $n\times p$ matrix with independent standard complex Brownian entries and set $M(t)=A(t)^*A(t)$. This is a process version of the Laguerre ensemble and as such we shall refer to it…
Dynamical correlation functions for products of random matrices
- Mathematics, Computer Science
- 2015
A family of random processes with a discrete time related to products of random matrices formed by singular values of random matrix products is introduced and it is shown that the random process is a discrete-time determinantal point process.
Singular Value Statistics of Matrix Products with Truncated Unitary Matrices
- Mathematics
- 2015
We prove that the squared singular values of a fixed matrix multiplied with a truncation of a Haar distributed unitary matrix are distributed by a polynomial ensemble. This result is applied to a…
Lévy Processes and Stochastic Calculus
- Mathematics
- 2004
Levy processes form a wide and rich class of random process, and have many applications ranging from physics to finance. Stochastic calculus is the mathematics of systems interacting with random…
Singular value correlation functions for products of Wishart random matrices
- MathematicsArXiv
- 2013
This paper first compute the joint probability distribution for the singular values of the product matrix when the matrix size N and the number M are fixed but arbitrary, which leads to a determinantal point process which can be realized in two different ways.
RECENT EXACT AND ASYMPTOTIC RESULTS FOR PRODUCTS OF INDEPENDENT RANDOM MATRICES
- Mathematics
- 2015
In this review we summarise recent results for the complex eigenvalues and
singular values of finite products of finite size random matrices, their
correlation functions and asymptotic limits. The…
Products of rectangular random matrices: singular values and progressive scattering.
- MathematicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2013
The so-called ergodic mutual information is considered, which gives an upper bound for the spectral efficiency of a MIMO communication channel with multifold scattering.
A Brownian‐Motion Model for the Eigenvalues of a Random Matrix
- Physics
- 1962
A new type of Coulomb gas is defined, consisting of n point charges executing Brownian motions under the influence of their mutual electrostatic repulsions. It is proved that this gas gives an exact…