Multimode circuit optomechanics near the quantum limit

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Massel, Francesco Cho, Sung Un Pirkkalainen, Juha-Matti Hakonen, Pertti J. Heikkilä, Tero T. Sillanpää, Mika A. 2017-08-03T12:09:55Z 2017-08-03T12:09:55Z 2012
dc.identifier.citation Massel , F , Cho , S U , Pirkkalainen , J-M , Hakonen , P J , Heikkilä , T T & Sillanpää , M A 2012 , ' Multimode circuit optomechanics near the quantum limit ' NATURE COMMUNICATIONS , vol 3 , 987 , pp. 1-6 . DOI: 10.1038/ncomms1993 en
dc.identifier.issn 2041-1723
dc.identifier.other PURE UUID: 9c0691c2-388a-4e3a-9438-f2e56a4474d4
dc.identifier.other PURE ITEMURL:
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dc.description.abstract The coupling of distinct systems underlies nearly all physical phenomena. A basic instance is that of interacting harmonic oscillators, giving rise to, for example, the phonon eigenmodes in a lattice. Of particular importance are the interactions in hybrid quantum systems, which can combine the benefits of each part in quantum technologies. Here we investigate a hybrid optomechanical system having three degrees of freedom, consisting of a microwave cavity and two micromechanical beams with closely spaced frequencies around 32 MHz and no direct interaction. We record the first evidence of tripartite optomechanical mixing, implying that the eigenmodes are combinations of one photonic and two phononic modes. We identify an asymmetric dark mode having a long lifetime. Simultaneously, we operate the nearly macroscopic mechanical modes close to the motional quantum ground state, down to 1.8 thermal quanta, achieved by back-action cooling. These results constitute an important advance towards engineering of entangled motional states. en
dc.format.extent 6
dc.format.extent 1-6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries NATURE COMMUNICATIONS en
dc.relation.ispartofseries Volume 3 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Multimode circuit optomechanics near the quantum limit en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.subject.keyword cavity read-out
dc.subject.keyword Duffing oscillator
dc.subject.keyword Graphene
dc.subject.keyword mechanical resonator
dc.subject.keyword nanomechanics
dc.subject.keyword NEMS
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201708036373
dc.identifier.doi 10.1038/ncomms1993
dc.type.version publishedVersion

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