High-coherence hybrid superconducting qubit

We report quantum coherence measurements of a superconducting qubit whose design is a hybrid of several existing types. Excellent coherence times are found: T2∼T1∼1.5 μs. The topology of the qubit is that of a traditional three-junction flux qubit, but it has a large shunting capacitance, and the ra...

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Veröffentlicht in:	Physical review letters 2010-09, Vol.105 (10), p.100502-100502, Article 100502
Hauptverfasser:	Steffen, Matthias, Kumar, Shwetank, Divincenzo, David P, Rozen, J R, Keefe, George A, Rothwell, Mary Beth, Ketchen, Mark B
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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