2026-05-07 スイス連邦工科大学ローザンヌ校（EPFL）
Demonstration of dynamic driving on a rotating platform. 2026 fleXLab EPFL CC BY SA
＜関連情報＞
- https://actu.epfl.ch/news/scientists-program-materials-just-by-spinning-th-2/
- https://www.science.org/doi/10.1126/sciadv.aec1606
ダイナミックドライブにより、対象メモリのマテリアルビットを個別に制御できます Dynamic drives allow independent control of material bits for targeted memory
Eduardo Gutierrez-Prieto, Colin M. Meulblok, Martin van Hecke, and Pedro M. Reis
Science Advances Published:6 May 2026
DOI:https://doi.org/10.1126/sciadv.aec1606
Abstract
Mechanical metamaterials with bistable elements can store vast amounts of information, but writing these memories requires impractical local control or lengthy multicycle protocols. We overcome this limitation with a dynamic control strategy that accesses any configuration in a single global drive cycle by leveraging the system’s sensitivity to the drive and its time derivatives. We realize this strategy with bistable beams on a rotating platform, where drive cycles become orbits in a control space of angular velocity and acceleration. State changes occur when these orbits cross switching thresholds, which we rationally design so that each state can be accessed by a single drive orbit. We construct a five-bit system and demonstrate its full addressability by selecting drive orbits that write all 26 uppercase letters of the alphabet in ASCII representation. This dynamic control paradigm offers a general route toward smart, remotely operated devices across various physical domains.
