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- W1981900599 abstract "In physical systems, decoherence can arise from both dissipative and dephasing processes. In mechanical resonators, the driven frequency response measures a combination of both, while time domain techniques such as ringdown measurements can separate the two. Here, we report the first observation of the mechanical ringdown of a carbon nanotube mechanical resonator. Comparing the mechanical quality factor obtained from frequency- and time-domain measurements, we find a spectral quality factor four times smaller than that measured in ringdown, demonstrating dephasing-induced decoherence of the nanomechanical motion. This decoherence is seen to arise at high driving amplitudes, pointing to a non-linear dephasing mechanism. Our results highlight the importance of time-domain techniques for understanding dissipation in nano-mechanical resonators, and the relevance of decoherence mechanisms in nanotube mechanics." @default.
- W1981900599 created "2016-06-24" @default.
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- W1981900599 date "2014-12-19" @default.
- W1981900599 modified "2023-09-25" @default.
- W1981900599 title "Observation of decoherence in a carbon nanotube mechanical resonator" @default.
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- W1981900599 doi "https://doi.org/10.1038/ncomms6819" @default.
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