Entanglement dynamics of a two-qutrits system coupled to a spin chain

TL;DR

This paper studies how entanglement between two qutrits evolves when interacting with a spin environment, revealing that rapid entanglement decay correlates with environmental quantum phase transitions.

Contribution

It introduces an analysis of entanglement dynamics in a two-qutrit system coupled to a spin chain, highlighting the link to quantum phase transitions.

Findings

Entanglement decays quickly near quantum phase transitions.

Negativity effectively measures entanglement dynamics.

Environmental quantum phase transitions influence entanglement decay.

Abstract

In this paper, we investigate the entanglement dynamics of a two qutrits system interacting with a spin environment. Using negativity as the entanglement measure, we study the entanglement dynamics of the system. The calculations show that in cases where the entanglement decays quickly, the environment will have a quantum phase transition.