Study of decoherence of entangled states made up of two basic states in a linear chain of three qubits

TL;DR

This paper investigates how entangled states in a three-qubit chain decohere under various environmental conditions, finding no consistent relationship between energy separation and decay rates.

Contribution

It provides a detailed analysis of decoherence behavior of entangled states in a three-qubit chain using Lindblad dynamics, highlighting the lack of regular dependence on energy separation.

Findings

Decoherence does not show regular dependence on energy separation.

Entangled states decay similarly across different environmental types.

The study enhances understanding of decoherence in multi-qubit systems.

Abstract

Using Lindblad approach to study decoherence of quantum systems, we study the decoherence and decay of entangled states, formed by two basic states of a chain of thee qubits. We look on these states for a possible regular dependence on their decay as a function of their energy separation between the basic states under different type of environments. We found not regular or significant dependence on this energy separation for the type of environment considered .