Skip to Main content Skip to Navigation
Journal articles

Flux Qubits with Long Coherence Times for Hybrid Quantum Circuits

M. Stern 1 G. Catelani 2 Y. Kubo 1 C. Grezes 1 A. Bienfait 1 Denis Vion 1 Daniel Esteve 1 Patrice Bertet 1 
1 QUANTRONICS - Quantronics Group
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : We present measurements of superconducting flux qubits embedded in a three dimensional copper cavity. The qubits are fabricated on a sapphire substrate and are measured by coupling them inductively to an on-chip superconducting resonator located in the middle of the cavity. At their flux-insensitive point, all measured qubits reach an intrinsic energy relaxation time in the 6-20 microseconds range and a pure dephasing time comprised between 3 and 10 microseconds. This significant improvement over previous works opens the way to the coherent coupling of a flux-qubit to individual spins.
Document type :
Journal articles
Complete list of metadata
Contributor : Dominique GIRARD Connect in order to contact the contributor
Submitted on : Thursday, October 20, 2016 - 11:57:46 AM
Last modification on : Monday, December 13, 2021 - 9:14:37 AM


Files produced by the author(s)




M. Stern, G. Catelani, Y. Kubo, C. Grezes, A. Bienfait, et al.. Flux Qubits with Long Coherence Times for Hybrid Quantum Circuits. Physical Review Letters, American Physical Society, 2014, 113 (12), pp.123601. ⟨10.1103/PhysRevLett.113.123601⟩. ⟨cea-01384637⟩



Record views


Files downloads