Diffusion profile and delocalization for random band matrices
- đ¤ Speaker: Knowles, A (New York University)
- đ Date & Time: Wednesday 19 September 2012, 11:10 - 11:50
- đ Venue: Seminar Room 1, Newton Institute
Abstract
I give a summary of recent progress in establishing the diffusion approximation for random band matrices. We obtain a rigorous derivation of the diffusion profile in the regime W > N^{4/5}, where W is the band width and N the dimension of the matrix. As a corollary, we prove complete delocalization of the eigenvectors. Our proof is based on a new self-consistent equation for the Green function.
Joint work with L. Erdos, H.T. Yau, and J. Yin.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Wednesday 19 September 2012, 11:10-11:50