Intrinsic decay length in elastic localization (opens in new tab)

Localization in finite elastic structures is often studied using infinite-domain solutions, which avoid the explicit treatment of boundaries and admit simpler analytical descriptions. Yet it remains poorly understood when finite-domain localized states can be accurately approximated by their infinite-domain counterparts. In this work, we show that the accuracy is controlled by an intrinsic decay length. Using a prototypical localization model, w...