Engineering entanglement and teleportation via solving Lindblad master equation

TL;DR

This paper presents a model for generating entanglement and quantum teleportation using a two-level atom interacting with radiation fields in cavities, with exact solutions to the Lindblad master equation in different regimes.

Contribution

It provides an exact solution to the Lindblad master equation for a cavity QED system and proposes two quantum teleportation schemes based on this model.

Findings

Entanglement is quantified using concurrence, negativity, and discord.

Non-classicality is analyzed via negativity volume and Wigner function.

Two schemes for quantum teleportation are proposed and analyzed.

Abstract

An experimentally realizable model based on the interaction between an excited two-level atom and a radiation field inside two quantum electrodynamics cavities is proposed. It consists of sending an excited two-level atom through two serial cavities which contain the radiation field. Hence, the Lindblad master equation described the reduced density matrix of the joint-joint field system inside the cavities is exactly solved in Markovian and non-Markovian regimes. However, the rate of entanglement inherent in the total field-field system are evaluated using various witnesses of entanglement such as concurrence, logarithmic negativity and quantum discord. Moreover, the non-classicality by means of negativity volume and Wigner function is discussed. Finally, two schemes of quantum teleportation are suggested.