Orbital and electronic entanglement in quantum teleportation schemes

TL;DR

This paper explores how electron entanglement in solid state devices can be harnessed for quantum teleportation, analyzing different electronic schemes and the role of mode and particle entanglement as quantum resources.

Contribution

It provides a detailed analysis of electron entanglement in various solid state quantum teleportation schemes, highlighting the importance of mode and particle entanglement as resources.

Findings

Mode and particle entanglement are crucial resources for quantum teleportation.

Entanglement formation in strongly correlated materials is significant for quantum information.

Three electronic teleportation schemes demonstrate practical applications of electron entanglement.

Abstract

With progress towards more compact quantum computing architectures, fundamental questions regarding the entanglement of indistinguishable particles need to be addressed. In a solid state device, this quest is naturally connected to the quantum correlations of electrons. Here, we investigate the entanglement between electrons, focusing on the entanglement of modes, the entanglement of particles and the effect of particle-number superselection rules. We elucidate the formation of mode and particle entanglement in strongly correlated materials and show that both represent important resources in quantum information tasks such as quantum teleportation. To this end, we qualitatively and quantitatively analyze the entanglement in three electronic teleportation schemes: (i) quantum teleportation within a molecule on graphene, (ii) a nitrogen-vacancy center and (iii) a quantum dot array.