TY  - JOUR
AU  - Stern, M.
AU  - Catelani, G.
AU  - Kubo, Y.
AU  - Grezes, C.
AU  - Bienfait, A.
AU  - Vion, D.
AU  - Esteve, D.
AU  - Bertet, P.
TI  - Flux Qubits with Long Coherence Times for Hybrid Quantum Circuits
JO  - Physical review letters
VL  - 113
IS  - 12
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2014-05010
SP  - 123601
PY  - 2014
AB  - 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
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000342153600008
DO  - DOI:10.1103/PhysRevLett.113.123601
UR  - https://juser.fz-juelich.de/record/156152
ER  -