Thermal quantum correlations and Teleportation in a Graphene Sheet

Abstract

The characterization of quantum resources in dynamical systems is one of the most important problems to be addressed in quantum information theory. In this article, we investigate the behaviors of quantum correlations and teleportation technique in a graphene sheet comprising of disordered electrons in a two-dimensional honeycomb lattice. We use three different measures of quantum correlations such as entanglement, measurement-induced nonlocality and uncertainty-induced nonlocality. We study the ground state properties of the graphene sheet from the perspective of quantum correlations. At thermal equilibrium, we show that the band parameter strengthens the quantum correlations whereas the scattering strength weakens the correlations. Finally, the impact of the system's parameters on the teleportation technique is also expounded.

Accepted in Applied physics B

References in corpus (10)

• The electronic properties of graphene
• Chiral tunneling and the Klein paradox in graphene
• Unconventional Integer Quantum Hall effect in graphene
• Necessary and sufficient condition for non-zero quantum discord
• Weak localisation magnetoresistance and valley symmetry in graphene
• Experimental quantum computing without entanglement
• Phase Coherent Transport of Charges in Graphene Quantum Billiard
• Room-temperature ferromagnetism in graphite driven by 2D networks of point defects
• Linking a distance measure of entanglement to its convex roof
• Robust quantum metrological schemes based on protection of quantum Fisher information