Flux qubits with long coherence times for hybrid quantum circuits

M. Stern, G. Catelani, Y. Kubo, C. Grezes, A. Bienfait, D. Vion, D. Esteve, P. Bertet

Research output: Contribution to journalArticlepeer-review

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 6-20μs range and a pure dephasing time comprised between 3 and 10μs. This significant improvement over previous works opens the way to the coherent coupling of a flux qubit to individual spins.

Original languageEnglish
Article number123601
JournalPhysical Review Letters
Volume113
Issue number12
DOIs
StatePublished - 19 Sep 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Flux qubits with long coherence times for hybrid quantum circuits'. Together they form a unique fingerprint.

Cite this