Optimal quantum repeaters for qubits and qudits

Details Optimal quantum repeaters for qubits and qudits Optimal quantum repeaters for qubits and qudits

2005-01-12

arxiv.org/abs/quant-ph/0501061v2

Phys. Rev. A vol 71, 052307 (2005).

Physics

Quantum Physics

Revised version. To appear in PRA

Scientific paper

10.1103/PhysRevA.71.052307

A class of optimal quantum repeaters for qubits is suggested. The schemes are minimal, i.e. involve a single additional probe qubit, and optimal, i.e. provide the maximum information adding the minimum amount of noise. Information gain and state disturbance are quantified by fidelities which, for our schemes, saturate the ultimate bound imposed by quantum mechanics for randomly distributed signals. Special classes of signals are also investigated, in order to improve the information-disturbance trade-off. Extension to higher dimensional signals (qudits) is straightforward.

Affiliated with

Also associated with

No associations

Rating

Optimal quantum repeaters for qubits and qudits 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 Optimal quantum repeaters for qubits and qudits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal quantum repeaters for qubits and qudits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-180013