Tripartite entanglement generation using cavity-QED and its dynamics in dissipative environments

Abstract

We investigate the generation of tripartite field states inside the high-Q cavities using the cavity QED. The main goal is to successfully generate the entanglement in tripartite systems by passing two-level atoms through three identical high-Q cavities. Our scheme gives the successful generation of entangled tripartite W and GHZ states for pre-determined interaction times of atoms with the cavity fields. The dynamics of initial entangled states is studied as the system evolves in the dissipative environments.

Keywords:

• tripartite entanglement
• entanglement generation
• entanglement dynamics
• sudden death of entanglement
• quantum information processing
• cavity QED