English

Asymptotic $\ast$--distribution of permuted Haar unitary matrices

Probability 2021-02-23 v3 Operator Algebras

Abstract

We study Haar unitary random matrices with permuted entries. For a sequence of permutations (σN)N\left(\sigma_N\right)_N, where σN\sigma_N acts on N×NN\times N matrices we identify conditions under which the \ast--distribution of permuted Haar unitary matrices UNσNU_N^{\sigma_N} is asymptotically circular and free from the unpermuted sequence UNU_N. We show that this convergence takes place in the almost sure sense. Moreover we show that our conditions on the sequence of permutations are generic in the sense that are almost surely satisfied by a sequence of random permutations.

Keywords

Cite

@article{arxiv.2006.05408,
  title  = {Asymptotic $\ast$--distribution of permuted Haar unitary matrices},
  author = {James A. Mingo and Mihai Popa and Kamil Szpojankowski},
  journal= {arXiv preprint arXiv:2006.05408},
  year   = {2021}
}

Comments

36 pages, corrected typos and added a new corollary: 3.6