Information on an elastic rubber string

Oliver Nagyy*, Leif Hanleny

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper shows how to use an ideal rubber string, which is clamped down at both ends, as a memory device. The information is stored on the string by giving it an initial shape, where the Fourier coefficients of this shape represent the code bits. Once the string is let go, the wave equation governs the oscillatory movements of the string, but it retains the information in the Fourier coefficients. We show two possibilities to recover this information: analysing a snapshot of the string shape, and analysing its motion at a particular point. Both methods are successful, but for most practical cases the spatial analysis yields a better achievable rate. While the ideal string is used as the intuitive model, our results automatically extend to arbitrary one dimensional wave resonators with clamped down (Dirichlet) boundaries.

Original languageEnglish
Title of host publication2009 IEEE Information Theory Workshop, ITW 2009
Number of pages5
Publication statusPublished - 7 Dec 2009
Externally publishedYes
Event2009 IEEE Information Theory Workshop, ITW 2009 - Taormina, Sicily, Italy
Duration: 11 Oct 200916 Oct 2009

Publication series

Name2009 IEEE Information Theory Workshop, ITW 2009


Conference2009 IEEE Information Theory Workshop, ITW 2009
CityTaormina, Sicily


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