Noiseless linear amplification via weak measurements

Details Noiseless linear amplification via weak measurements Noiseless linear amplification via weak measurements

2009-03-24

arxiv.org/abs/0903.4181v1

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

We discuss the recently introduced concept of non-deterministic noiseless linear amplification, demonstrating that such an operation can only be performed perfectly with vanishing probability of success. We show that a weak measurement, which imprints the weak value of an observable of a pre-selected and post-selected system onto a probe system, can be used to approximate probabilistic noiseless amplification. This result may be applied to various tasks in continuous variable quantum information, including entanglement concentration, probabilistic cloning, and in quantum repeaters. We discuss the application of our scheme to probabilistic cloning of weak coherent states.

Affiliated with

Also associated with

No associations

Rating

Noiseless linear amplification via weak measurements 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 Noiseless linear amplification via weak measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noiseless linear amplification via weak measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-67489