Tripartite orbital angular momentum quantum information and non-Kolmogorov turbulent atmosphere

The distributions of tripartite quantum information (including entanglement, discord-like correlation and coherence) with orbital angular momentum states in non-Kolmogorov turbulent atmosphere are investigated. We introduce two exactly computable measures for tripartite discord-like correlation and tripartite coherence by consider the geometric mean of bipartite quantities. For illustration, we consider Laguerre-Gaussian beams to explore the propagations of typical tripartite states (the W state and GHZ state) and find that the decay of tripartite quantum information is qualitatively distinct from that of bipartite quantum information. It also shown that tripartite quantum information is almost insensitive to the outer scale parameter while the decay can be slowed down with a larger inner scale parameter.

Automated summary

The study investigates the distributions of tripartite quantum information in a non-Kolmogorov turbulent atmosphere and introduces exactly computable measures for tripartite discord-like correlation and tripartite coherence. The decay of tripartite quantum information is found to be qualitatively distinct from that of bipartite quantum information, and is almost insensitive to the outer scale parameter while being slowed down by a larger inner scale parameter.