Optimal distillation of three-qubit W states

TL;DR

This paper introduces protocols for optimally distilling both symmetric and asymmetric three-qubit W states from a single copy of any W-class pure state, enhancing quantum communication capabilities.

Contribution

It provides the first protocols for the optimal distillation of asymmetric and symmetric three-qubit W states from a single copy of any W-class pure state.

Findings

Protocols successfully distill W states with high fidelity

Applicable to both symmetric and asymmetric W states

Enhances quantum communication tasks like teleportation

Abstract

Some of the asymmetric three qubit $W$ states are used for perfect teleportation, superdense coding and quantum information splitting. We present the protocols for the optimal distillation of the asymmetric as well as the symmetric $W$ states from a single copy of any three qubit $W$ class pure state.