Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Multiplexing Superconducting Qubit Circuit for Single Microwave Photon Generation
AU - George, Richard Edwin
AU - Senior, Jordan
AU - Saira, Olli-Penti
AU - Pekola, Jukka
AU - de Graaf, S.E.
AU - Lindström, Tobias
AU - Pashkin, Yuri
PY - 2017/10
Y1 - 2017/10
N2 - We report on a device that integrates eight superconducting transmon qubitsin λ/4 superconducting coplanar waveguide resonators fed from a common feedline. Using this multiplexing architecture, each resonator and qubit can be addressed individually, thus reducing the required hardware resources and allowing their individual characterisation by spectroscopic methods. The measured device parameters agree with the designed values, and the resonators and qubits exhibit excellent coherence properties and strong coupling, with the qubit relaxation rate dominated by the Purcell effect when brought in resonance with the resonator. Our analysis shows that the circuit is suitable for generation of single microwave photons on demand with an efficiency exceeding 80%.
AB - We report on a device that integrates eight superconducting transmon qubitsin λ/4 superconducting coplanar waveguide resonators fed from a common feedline. Using this multiplexing architecture, each resonator and qubit can be addressed individually, thus reducing the required hardware resources and allowing their individual characterisation by spectroscopic methods. The measured device parameters agree with the designed values, and the resonators and qubits exhibit excellent coherence properties and strong coupling, with the qubit relaxation rate dominated by the Purcell effect when brought in resonance with the resonator. Our analysis shows that the circuit is suitable for generation of single microwave photons on demand with an efficiency exceeding 80%.
KW - Superconducting qubit
KW - Transmon
KW - Superconducting resonator
KW - Single photon generation
U2 - 10.1007/s10909-017-1787-x
DO - 10.1007/s10909-017-1787-x
M3 - Journal article
VL - 189
SP - 60
EP - 75
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 1-2
ER -