Observation of infinite-range intensity correlations above, at and below the 3D Anderson localization transition

Autor:	Hildebrand, W. K., Strybulevych, A., Skipetrov, S. E., van Tiggelen, B. A., Page, J. H.
Rok vydání:	2013
Předmět:	Condensed Matter - Disordered Systems and Neural Networks Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Physical Review Letters, 112, 073902 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.112.073902
Popis:	We investigate long-range intensity correlations on both sides of the Anderson transition of classical waves in a three-dimensional (3D) disordered material. Our ultrasonic experiments are designed to unambiguously detect a recently predicted infinite-range C0 contribution, due to local density of states fluctuations near the source. We find that these C0 correlations, in addition to C2 and C3 contributions, are significantly enhanced near mobility edges. Separate measurements of the inverse participation ratio reveal a link between C0 and the anomalous dimension \Delta_2, implying that C0 may also be used to explore the critical regime of the Anderson transition. Comment: 13 pages, 11 figures (main text plus supplemental information). Updated version includes an improved introductory paragraph, minor text revisions, a revised title and additional supplemental information on the experimental details
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1303.7042 Zobrazit plný text záznamu View this record from Arxiv