Journal
PHYSICAL REVIEW LETTERS
Volume 106, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.157601
Keywords
-
Categories
Funding
- Deutsche Forschungsgesellschaft [SFB/TR21, FOR 1482]
- European Commission
- Volkswagenstiftung
- Landesstiftung BW
Ask authors/readers for more resources
The nitrogen-vacancy (NV) center in diamond is supposed to be a building block for quantum computing and nanometer-scale metrology at ambient conditions. Therefore, precise knowledge of its quantum states is crucial. Here, we experimentally show that under usual operating conditions the NV exists in an equilibrium of two charge states [70% in the expected negative (NV(-)) and 30% in the neutral one (NV(0))]. Projective quantum nondemolition measurement of the nitrogen nuclear spin enables the detection even of the additional, optically inactive state. The nuclear spin can be coherently driven also in NV0 (T(1) approximate to 90 ms and T(2) approximate to 6 mu s).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available