Quantum Zeno Effect on Genuine Tripartite Nonlocality and Entanglement in Quantum Dissipative System

TL;DR

This paper develops a numerical method to quantify genuine tripartite nonlocality and entanglement in three-qubit systems, analyzes their dynamics, and proposes a strategy using the Quantum Zeno Effect to protect these quantum correlations against decoherence.

Contribution

It provides a highly accurate numerical quantification of GTN for arbitrary three-qubit states and introduces a Zeno effect-based strategy to preserve quantum correlations.

Findings

Numerical quantification of GTN and GTE for three-qubit states.

Verification of the complementarity between tripartite and bipartite nonlocality.

Protection of GTN and GTE correlations using the Quantum Zeno Effect.

Abstract

As a precious global resource in quantum information, genuine tripartite nonlocality(GTN) can be quantified by violating Svetlichny inequality. However, there is still no analytical expression for the general three-qubit states due to the difficulty of theoretical calculations. In this paper, we achieve highly accurate quantization of GTN for arbitrary three-qubit quantum states numerically. As an example, we study the dynamics of GTN and genuine tripartite entanglement(GTE) for the W state. Moreover, the complementarity of GTN is verified by examining the nonlocality between the tripartite and the bipartite. Finally, we also find a useful strategy to protect the correlation of GTN and GTE under decoherence by utilizing the Zeno effect.