%0 Journal Article
%A Stern, M.
%A Catelani, G.
%A Kubo, Y.
%A Grezes, C.
%A Bienfait, A.
%A Vion, D.
%A Esteve, D.
%A Bertet, P.
%T Flux Qubits with Long Coherence Times for Hybrid Quantum Circuits
%J Physical review letters
%V 113
%N 12
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2014-05010
%P 123601
%D 2014
%X 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  μs range and a pure dephasing time comprised between 3 and 10  μs. This significant improvement over previous works opens the way to the coherent coupling of a flux qubit to individual spins
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000342153600008
%R 10.1103/PhysRevLett.113.123601
%U https://juser.fz-juelich.de/record/156152