Normal fluctuation in quantum ergodicity for Wigner matrices

نویسندگان

چکیده

We consider the quadratic form of a general high-rank deterministic matrix on eigenvectors an N×N Wigner and prove that it has Gaussian fluctuation for each bulk eigenvector in large N limit. The proof is combination energy method Dyson Brownian motion inspired by Marcinek Yau (2021) our recent multiresolvent local laws (Comm. Math. Phys. 388 1005–1048).

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Bulk Universality for Wigner Matrices

We consider N ×N Hermitian Wigner random matrices H where the probability density for each matrix element is given by the density ν(x) = e. We prove that the eigenvalue statistics in the bulk is given by Dyson sine kernel provided that U ∈ C(R) with at most polynomially growing derivatives and ν(x) ≤ C e for x large. The proof is based upon an approximate time reversal of the Dyson Brownian mot...

متن کامل

Wigner formula of rotation matrices and quantum walks

Quantization of a random-walk model is performed by giving a multi-component qubit to a walker at site and by introducing a quantum coin, which is represented by a unitary matrix. In quantum walks, the qubit of walker is mixed according to the quantum coin at each time step, when the walker hops to other sites. The standard (discrete) quantum-walk model in one-dimension is defined by using a 2×...

متن کامل

Quantum ergodicity for electrons in two dimensions

We study the effect of electron-electron interaction on a two dimensional (2D) disordered lattice. For the case of two electrons the analytical estimates are presented showing a transition from localized to delocalized states in a way similar to the Anderson transition in 3D. The localized phase corresponds to large values of parameter rs, which is determined by the ratio of the Coulomb and Fer...

متن کامل

A Wegner estimate for Wigner matrices

In the first part of these notes, we review some of the recent developments in the study of the spectral properties of Wigner matrices. In the second part, we present a new proof of a Wegner estimate for the eigenvalues of a large class of Wigner matrices. The Wegner estimate gives an upper bound for the probability to find an eigenvalue in an interval I, proportional to the size |I| of the int...

متن کامل

Fixed energy universality for generalized Wigner matrices

We prove the Wigner-Dyson-Mehta conjecture at fixed energy in the bulk of the spectrum for generalized symmetric and Hermitian Wigner matrices. Previous results concerning the universality of random matrices either require an averaging in the energy parameter or they hold only for Hermitian matrices if the energy parameter is fixed. We develop a homogenization theory of the Dyson Brownian motio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Annals of Probability

سال: 2022

ISSN: ['0091-1798', '2168-894X']

DOI: https://doi.org/10.1214/21-aop1552