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Document type:
Konferenzbeitrag 
Contribution type:
Poster 
Author(s):
Ochs, J. 
Title:
Fluctuation-induced nonlinear dynamics of nanomechanical systems 
Abstract:
High Q nanomechanical string resonators are employed as a well-controlled platform to explore the fluctuation-induced nonlinear dynamics in driven systems. In particular, we will focus on the effects of a strong resonant drive. In the nonlinear response regime, this leads to the squeezing of thermomechanical fluctuations. For even stronger driving, the observed resonantly induced negative friction and the resulting dynamical instability will also be addressed. Finally, we will include systems under non-harmonic driving and engineered fluctuations. The project will thus enable fundamental insights into the classical nonlinear dynamics of driven systems. Key Publications and Preliminary Work High Q nanoresonators & dielectric control toolbox [Unterreithmeier et al., Nature (2009)] Spectral evidence of thermomechanical squeezing [Huber et al., Phys. Rev. X 2020] Theory of resonantly induced friction [Dykman et al., Phys. Rev. Lett. (2019)] 
Book / Congress title:
12.10.2021, SFB 1432 Retreat, Konferenz (Konstanz), 
Congress (additional information):
Konstanz, Germany, 11-12 Oct 2021-10 
Year:
2021 
Quarter:
4. Quartal 
Year / month:
2021-10 
Month:
Oct 
Language:
en