Long-range angular correlations of waves in a tube geometry

D. Eliyahu, R. Berkovits, M. Kaveh

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We show the existence of unusual angular correlations for transmitted and reflected waves for a random medium in the shape of a long tube. The brightness of the speckle spot extends much above its normal angular size =/W (where W is the width of the tube) and falls off only as a power law with oscillatory strength. We show a gradual disappearance of the memory effect as the length of the tube exceeds its width. We have also performed numerical simulations that confirm our analytical expressions for the correlation functions C1 and C2 and are able to determine the constant background correlation C3.

Original languageEnglish
Pages (from-to)13501-13505
Number of pages5
JournalPhysical Review B
Issue number16
StatePublished - 1991


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