Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43974
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dc.contributorDepartment of Applied Physicsen_US
dc.creatorXiong, Wen_US
dc.creatorJin, DYen_US
dc.creatorJing, Jen_US
dc.creatorLam, CHen_US
dc.creatorYou, JQen_US
dc.date.accessioned2016-06-07T06:37:31Z-
dc.date.available2016-06-07T06:37:31Z-
dc.identifier.issn1050-2947en_US
dc.identifier.urihttp://hdl.handle.net/10397/43974-
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.rights©2015 American Physical Societyen_US
dc.rightsThe following publication Xiong, W., Jin, D. Y., Jing, J., Lam, C. H., & You, J. Q. (2015). Controllable coupling between a nanomechanical resonator and a coplanar-waveguide resonator via a superconducting flux qubit. Physical Review A, 92(3), 032318 is available at https://doi.org/10.1103/PhysRevA.92.032318.en_US
dc.titleControllable coupling between a nanomechanical resonator and a coplanar-waveguide resonator via a superconducting flux qubiten_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume92en_US
dc.identifier.issue3en_US
dc.identifier.doi10.1103/PhysRevA.92.032318en_US
dcterms.abstractWe study a tripartite quantum system consisting of a coplanar-waveguide (CPW) resonator and a nanomechanical resonator (NAMR) connected by a flux qubit, where the flux qubit has a large detuning from both resonators. By a unitary transformation and a second-order approximation, we obtain a strong and controllable (i.e., magnetic-field-dependent) effective coupling between the NAMR and the CPW resonator. Due to the strong coupling, vacuum Rabi splitting can be observed from the voltage-fluctuation spectrum of the CPW resonator. We further study the properties of single-photon transport as inferred from the reflectance or equivalently the transmittance. We show that the reflectance and the corresponding phase-shift spectra both exhibit doublet of narrow spectral features due to vacuum Rabi splitting. By tuning the external magnetic field, the reflectance and the phase shift can be varied from 0 to 1 and -π to π, respectively. The results indicate that this hybrid quantum system can act as a quantum router.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationPhysical review. A, Atomic, molecular, and optical physics, Sept. 2015, v. 92, no. 3, 032318en_US
dcterms.isPartOfPhysical review. A, Atomic, molecular, and optical physicsen_US
dcterms.issued2015-09-
dc.identifier.scopus2-s2.0-84943158405-
dc.identifier.eissn1094-1622en_US
dc.identifier.rosgroupid2015002426-
dc.description.ros2015-2016 > Academic research: refereed > Publication in refereed journalen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberRGC-B3-0299-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextNSAF; NSFC; NBPRCen_US
dc.description.pubStatusPublisheden_US
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