The Basics of Perfect Communication through Quantum Networks

Details The Basics of Perfect Communication through Quantum Networks The Basics of Perfect Communication through Quantum Networks

2011-02-11

arxiv.org/abs/1102.2338v2

Phys. Rev. A 84, 022337 (2011)

Physics

Quantum Physics

v2: 9 pages, 1 figure, published version

Scientific paper

10.1103/PhysRevA.84.022337

Perfect transfer of a quantum state through a one-dimensional chain is now well understood, allowing one not only to decide whether a fixed Hamiltonian achieves perfect transfer, but to design a suitable one. We are particularly interested in being able to design, or understand the limitations imposed upon, Hamiltonians subject to various naturally arising constraints such as a limited coupling topology with low connectivity (specified by a graph) and type of interaction. In this paper, we characterise the necessary and sufficient conditions for transfer through a network, and describe some natural consequences such as the impossibility of routing between many different recipients for a large class of Hamiltonians, and the limitations on transfer rate. We also consider some of the trade-offs that arise in uniformly coupled networks (both Heisenberg and XX models) between transfer distance and the size of the network as a consequence of the derived conditions.

Affiliated with

Also associated with

No associations

Rating

The Basics of Perfect Communication through Quantum Networks 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 The Basics of Perfect Communication through Quantum Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Basics of Perfect Communication through Quantum Networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-632427