Crackling Noise during Slow Relaxations in Crumpled Sheets

Yoav Lahini, Shmuel M. Rubinstein, Ariel Amir

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The statistics of noise emitted by ultrathin crumpled sheets is measured while they exhibit logarithmic relaxations under load. We find that the logarithmic relaxation advanced via a series of discrete, audible, micromechanical events that are log-Poisson distributed (i.e., the process becomes a Poisson process when time stamps are replaced by their logarithms). The analysis places constraints on the possible mechanisms underlying the glasslike slow relaxation and memory retention in these systems.

Original languageEnglish
Article number258201
JournalPhysical Review Letters
Issue number25
StatePublished - 23 Jun 2023


FundersFunder number
National Science Foundation
Materials Research Science and Engineering Center, Harvard UniversityDMR-2011754
Israel Science Foundation2096/18, 2117/22


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