Adaptive quantum teleportation

TL;DR

This paper introduces adaptive quantum teleportation within the KLM scheme, where subsequent entangled states depend on previous measurement outcomes, improving the success probability of multiple teleportations.

Contribution

It proposes a novel adaptive approach to quantum teleportation that enhances success rates by dynamically choosing entangled states based on prior measurement results.

Findings

Adaptive teleportation increases the probability of faithful multiple teleportation.

Nonmaximally entangled states outperform maximally entangled ones in repeated teleportations.

The method improves the efficiency of quantum communication protocols.

Abstract

We consider multiple teleportation in the Knill-Laflamme-Milburn (KLM) scheme. We introduce adaptive teleportation, i.e., such that the choice of entangled state used in the next teleportation depends on the results of the measurements performed during the previous teleportations. We show that adaptive teleportation enables an increase in the probability of faithful multiple teleportation in the KLM scheme. In particular if a qubit is to be teleported more than once then it is better to use nonmaximally entangled states than maximally entangled ones in order to achieve the highest probability of faithful teleportation.