Hidden Vibrational Bistability Revealed by Intrinsic Fluctuations of a Carbon Nanotube

We demonstrate that a quiet state and large-amplitude self-sustained oscillations can coexist in a carbon nanotube subject to time-independent drive. A feature of the bistability is that it would be hysteresis free in the absence of noise, and the oscillatory state would not be seen. It is revealed by random switching between the stable states, which we observe in the time domain. We attribute the switching to fluctuations in the system and show that it displays Poisson statistics. We propose a minimalistic model that relates the emergence of the bistability to a nonmonotonic variation of nonlinear friction with the vibration amplitude. This new type of dynamical regime and the means to reveal it are generic and are of interest for various mesoscopic vibrational systems.

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Publication Details

Journal
Nano Letters
Published
2025-04-29
DOI
https://doi.org/10.1021/acs.nanolett.4c06618
Citations
3
Primary Topic
Mechanical and Optical Resonators
Type
article
Field-Weighted Citation Impact
3.74

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article

Hidden Vibrational Bistability Revealed by Intrinsic Fluctuations of a Carbon Nanotube

Pierpaolo Belardinelli, Wei Yang, Adrian Bachtold, M. I. Dykman et al.
3 citations
Nano Letters
Mechanical and Optical Resonators
3.74
article

Hidden Vibrational Bistability Revealed by Intrinsic Fluctuations of a Carbon Nanotube

Pierpaolo Belardinelli, Wei Yang, Adrian Bachtold, M. I. Dykman, Farbod Alijani
article en
3 citations

Abstract

We demonstrate that a quiet state and large-amplitude self-sustained oscillations can coexist in a carbon nanotube subject to time-independent drive. A feature of the bistability is that it would be hysteresis free in the absence of noise, and the oscillatory state would not be seen. It is revealed by random switching between the stable states, which we observe in the time domain. We attribute the switching to fluctuations in the system and show that it displays Poisson statistics. We propose a minimalistic model that relates the emergence of the bistability to a nonmonotonic variation of nonlinear friction with the vibration amplitude. This new type of dynamical regime and the means to reveal it are generic and are of interest for various mesoscopic vibrational systems.

Nano LettersVol. 25(21)
Marche Polytechnic University (IT), Institute of Photonic Sciences (ES), Institute of Construction and Architecture of the Slovak Academy of Sciences (SK), Michigan State University (US), Delft University of Technology (NL)
Gordon and Betty Moore Foundation, Fundación Cellex, Ministerio de Ciencia, Innovación y Universidades, Centres de Recerca de Catalunya, Generalitat de Catalunya, Ministerio de Economía y Competitividad, FUNDACIÓ Privada MIR-PUIG, Defense Advanced Research Projects Agency, Agència de Gestió d'Ajuts Universitaris i de Recerca, European Regional Development Fund, H2020 European Research Council, HORIZON EUROPE European Research Council
Openalex Percentile: Top 8%
Mechanical and Optical Resonators
3.74
DOIOpen Access PDFOpenAlex
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Hidden Vibrational Bistability Revealed by Intrinsic Fluctuations of a Carbon Nanotube — Pierpaolo Belardinelli, Wei Yang, et al. · Nano Letters (2025) | TGRS Research Map | TGRS