Energy-dependent path of dissipation in nanomechanical resonators
Guttinger J, Noury A, Weber P, Eriksson AM, Lagoin C, Moser J, Wallraff A, Isacsson A, Bachtold A, Eichler C (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 12
Pages Range: 631-636
Journal Issue: 7
Abstract
Energy decay plays a central role in a wide range of phenomena, such as optical emission, nuclear fission, and dissipation in quantum systems. Energy decay is usually described as a system leaking energy irreversibly into an environmental bath. Here, we report on energy decay measurements in nanomechanical systems based on multilayer graphene that cannot be explained by the paradigm of a system directly coupled to a bath. As the energy of a vibrational mode freely decays, the rate of energy decay changes abruptly to a lower value. This finding can be explained by a model where the measured mode hybridizes with other modes of the resonator at high energy. Below a threshold energy, modes are decoupled, resulting in comparatively low decay rates and giant quality factors exceeding 1 million. Our work opens up new possibilities to manipulate vibrational states, engineer hybrid states with mechanical modes at completely different frequencies, and to study the collective motion of this highly tunable system.
Authors with CRIS profile
Involved external institutions
Autonomous University of Barcelona (UAB) / Universitat Autònoma de Barcelona
Spain (ES)
Chalmers University of Technology / Chalmers tekniska högskola
Sweden (SE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
Spain (ES)
Chalmers University of Technology / Chalmers tekniska högskola
Sweden (SE)
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
How to cite
APA:
Guttinger, J., Noury, A., Weber, P., Eriksson, A.M., Lagoin, C., Moser, J.,... Eichler, C. (2017). Energy-dependent path of dissipation in nanomechanical resonators. Nature Nanotechnology, 12(7), 631-636. https://doi.org/10.1038/nnano.2017.86
MLA:
Guttinger, Johannes, et al. "Energy-dependent path of dissipation in nanomechanical resonators." Nature Nanotechnology 12.7 (2017): 631-636.
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