Role of Quantumness of Correlations in Entanglement Resource Theory

TL;DR

This paper explores how the quantumness of correlations influences entanglement distillation, showing that it can create distillable entanglement and relates to protocol irreversibility using Koashi-Winter relation.

Contribution

It introduces the activation protocol and demonstrates the role of quantumness of correlations in entanglement distillation and irreversibility.

Findings

Quantumness of correlations can generate distillable entanglement during local measurements.

Quantumness of correlations is related to the irreversibility of entanglement distillation.

Activation protocol shows how correlations activate entanglement creation.

Abstract

Quantum correlations: entanglement and quantumness of correlations are main resource for quantum information theory. In this chapter it is presented the scenarios which quantumness of correlations plays an interesting role in entanglement distillation protocol. By means of Koashi - Winter relation, it is discussed that quantumness of correlations are related to the irreversibility of the entanglement distillation protocol. The activation protocol is introduced, and it is proved that quantumness of correlations can create distillable entanglement between the system and the measurement apparatus during a local measurement process.