Noisy channel effect on quantum correlations of two relativistic particles

TL;DR

This paper investigates how quantum correlations like entanglement, geometric discord, and quantum discord behave under noisy Pauli channels in relativistic two-particle systems, highlighting their robustness compared to entanglement.

Contribution

It provides a comparative analysis of the robustness of different quantum correlations under noise in relativistic settings, emphasizing the potential resilience of discord measures.

Findings

Geometric discord and quantum discord are more robust than entanglement against decoherence.

Quantum correlations exhibit different dynamics under various Pauli channels.

Entanglement can undergo sudden death while discord measures may persist.

Abstract

We study the quantum correlation dynamics of two relativistic particles which is transmitted through one of the Pauli channels $ \sigma_{x}, \sigma_{y},$ and $\sigma_{z}$. We compare sudden death and robustness of entanglement and geometric discord and quantum discord of two relativistic particles under noisy Pauli channels. we find out geometric discord and quantum discord may be more robust than entanglement against decoherence.