High-fidelity, adaptive qubit measurements through repetitive information transfer

Details High-fidelity, adaptive qubit measurements through repetitive information transfer High-fidelity, adaptive qubit measurements through repetitive information transfer

2007-05-14

arxiv.org/abs/0705.1870v2

Physics

Quantum Physics

Added Acknowledgements 4 pages, 4 figures

Scientific paper

Using two trapped ion species ($\rm{^{27}Al^+}$ and $\rm{^9Be^+}$) as primary and ancillary systems, we implement qubit measurements based on the repetitive transfer of information and quantum nondemolition detection. The repetition provides a natural mechanism for an adaptive measurement strategy, which leads to exponentially lower error rates compared to using a fixed number of detection cycles. For a single qubit we demonstrate 99.94 % measurement fidelity. We also demonstrate a technique for adaptively measuring multiple qubit states using a single ancilla, and apply the technique to spectroscopy of an optical clock transition.

Affiliated with

Also associated with

No associations

Rating

High-fidelity, adaptive qubit measurements through repetitive information transfer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High-fidelity, adaptive qubit measurements through repetitive information transfer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-fidelity, adaptive qubit measurements through repetitive information transfer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-365367