Observation of anomalous decoherence effect in a quantum bath at room temperature

Details Observation of anomalous decoherence effect in a quantum bath at room temperature Observation of anomalous decoherence effect in a quantum bath at room temperature

2011-05-24

arxiv.org/abs/1105.4793v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

22 pages, related paper at http://arxiv.org/abs/1102.5576

Scientific paper

Decoherence of quantum objects is critical to modern quantum sciences and technologies. It is generally believed that stronger noises cause faster decoherence. Strikingly, recent theoretical research discovers the opposite case for spins in quantum baths. Here we report experimental observation of the anomalous decoherence effect for the electron spin-1 of a nitrogen-vacancy centre in high-purity diamond at room temperature. We demonstrate that under dynamical decoupling, the double-transition can have longer coherence time than the single-transition, even though the former couples to the nuclear spin bath as twice strongly as the latter does. The excellent agreement between the experimental and the theoretical results confirms the controllability of the weakly coupled nuclear spins in the bath, which is useful in quantum information processing and quantum metrology.

Affiliated with

Also associated with

No associations

Rating

Observation of anomalous decoherence effect in a quantum bath at room temperature 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 Observation of anomalous decoherence effect in a quantum bath at room temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of anomalous decoherence effect in a quantum bath at room temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-516066