標題: Coherent phonon manipulation in coupled mechanical resonators
作者: Okamoto, Hajime
Gourgout, Adrien
Chang, Chia-Yuan
Onomitsu, Koji
Mahboob, Imran
Chang, Edward Yi
Yamaguchi, Hiroshi
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 1-八月-2013
摘要: Coupled nanomechanical resonators have recently attracted great attention for both practical applications and fundamental studies owing to their sensitive sympathetic oscillation dynamics(1-10). A challenge to the further development of this architecture is the coherent manipulation of the coupled oscillations. Here, we demonstrate strong dynamic coupling between two GaAs-based mechanical resonators by periodically modulating (pumping) the stress using a piezoelectric transducer. This strong coupling enables coherent transfer of phonon populations between the resonators, namely phonon Rabi oscillations(11-13). The nature of the dynamic coupling can also be tuned from a linear first-order interaction to a nonlinear higher-order process in which more than one pump phonon mediates the coherent oscillations (that is, multi-pump phonon mixing). This coherent manipulation is not only useful for controlling classical oscillations(14) but can also be extended to the quantum regime(11-13), opening up the prospect of entangling two distinct macroscopic mechanical objects(15,16).
URI: http://dx.doi.org/10.1038/nphys2665
http://hdl.handle.net/11536/22133
ISSN: 1745-2473
DOI: 10.1038/nphys2665
期刊: NATURE PHYSICS
Volume: 9
Issue: 8
起始頁: 480
結束頁: 484
顯示於類別:期刊論文