Memory Imperfections in Atomic Ensemble-based Quantum Repeaters

Details Memory Imperfections in Atomic Ensemble-based Quantum Repeaters Memory Imperfections in Atomic Ensemble-based Quantum Repeaters

2008-03-14

arxiv.org/abs/0803.2069v2

Phys. Rev. A 78, 012350 (2008)

Physics

Quantum Physics

15 pages, 12 figures

Scientific paper

10.1103/PhysRevA.78.012350

Quantum repeaters promise to deliver long-distance entanglement overcoming noise and loss in realistic quantum channels. A promising class of repeaters, based on atomic ensemble quantum memories and linear optics, follow the proposal by Duan et al [Nature 414, 413, 2001]. Here we analyse this protocol in terms of a very general model for the quantum memories employed. We derive analytical expressions for scaling of entanglement with memory imperfections, dark counts, loss and distance, and apply our results to two specific quantum memory protocols. Our methods apply to any quantum memory with an interaction Hamiltonian at most quadratic in the mode operators and are in principle extendible to more recent modifications of the original DLCZ proposal.

Affiliated with

Also associated with

No associations

Rating

Memory Imperfections in Atomic Ensemble-based Quantum Repeaters 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 Memory Imperfections in Atomic Ensemble-based Quantum Repeaters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory Imperfections in Atomic Ensemble-based Quantum Repeaters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-246255