Details

Autor(en) / Beteiligte

• Koppens, F H L
• Klauser, D
• Coish, W A
• Nowack, K C
• Kouwenhoven, L P
• Loss, D
• Vandersypen, L M K

Titel

Universal phase shift and nonexponential decay of driven single-spin oscillations

Ist Teil von

• Physical review letters, 2007-09, Vol.99 (10), p.106803-106803, Article 106803

Ort / Verlag

United States

Erscheinungsjahr

2007

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• We study, both theoretically and experimentally, driven Rabi oscillations of a single electron spin coupled to a nuclear-spin bath. Because of the long correlation time of the bath, two unusual features are observed in the oscillations. The decay follows a power law, and the oscillations are shifted in phase by a universal value of approximately pi/4. These properties are well understood from a theoretical expression that we derive here in the static limit for the nuclear bath. This improved understanding of the coupled electron-nuclear system is important for future experiments using the electron spin as a qubit.