Quantum entanglement dynamics in a three-qubit system interacting with a spin chain

TL;DR

This paper studies how entanglement in three-qubit states evolves over time when interacting with a spin chain environment, using negativity as a measure, and compares different initial states and parameters.

Contribution

It provides a detailed analysis of entanglement dynamics for GHZ, W, and W_zeta states in a spin chain environment, highlighting the effects of various parameters.

Findings

Entanglement varies significantly with initial state and system parameters.

Negativity effectively captures entanglement decay and revival patterns.

Different initial states exhibit distinct robustness against environmental interactions.

Abstract

In this article, we investigate the entanglement evolution of three-qubit states in the presence of a spin chain environment. Utilizing negativity as a metric for entanglement assessment, we focus on the GHZ, W, and W_zeta quantum states as the initial system states. We explore and analyze the entanglement dynamics of these states based on various parameters.