Quantum Ergodicity and Averaging Operators on the Sphere

Shimon Brooks; Etienne Le Masson; Elon Lindenstrauss

doi:10.1093/imrn/rnv337

Quantum Ergodicity and Averaging Operators on the Sphere

Shimon Brooks, Etienne Le Masson, Elon Lindenstrauss^*

^*Corresponding author for this work

Einstein Institute of Mathematics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We prove quantum ergodicity for certain orthonormal bases of L²(S²), consisting of joint eigenfunctions of the Laplacian on S² and the discrete averaging operator over a finite set of rotations, generating a free group. If, in addition, the rotations are algebraic, we give a quantified version of this result. The methods used also give a new, simplified proof of quantum ergodicity for large regular graphs.

Original language	English
Pages (from-to)	6034-6064
Number of pages	31
Journal	International Mathematics Research Notices
Volume	2016
Issue number	19
DOIs	https://doi.org/10.1093/imrn/rnv337
State	Published - 2016

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© 2015 The Author(s). Published by Oxford University Press. All rights reserved.

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Quantum Ergodicity and Averaging Operators on the Sphere

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