Non-Markovian entanglement dynamics of three independent qubit within atomic-cavity system Vincentius A Wasesatama, Jusak S Kosasih and Wahyu Hidayat
Theoretical and High Energy Physics Research Division, Department of Physics, Faculty of mathematics and Natural Sciences, Institut Teknologi Bandung, Jl.Ganesha 10 Bandung 40132, INDONESIA
Abstract
All realistic quantum systems will interact with their environments. This fact presents challenges to the implementation of quantum systems for practical systems. One of the most important quantum resources is the implementation of entanglement. In this paper, we investigate the interplay between the effects of noisy environments and the dynamics of entanglement. The open quantum system model that will be used is cavity quantum electrodynamics (CQED) with three-qubit interacting independently with a variation of environmental model. We use master equation to describe the dynamics of the open quantum system and a lower bound concurrence, \(C_{LBC}\), to measure the entanglement of tripartite qubit. We derive the exact dynamics of each model and use \(C_{LBC}\) method proposed by Li et.al to visualize entanglement dynamics. By adjusting the environmental parameters, we also found revivals and dark-periods of entanglement which are unique to non-Markovian processes.
Keywords: Concurrence- CQED- Entanglement Dynamics- Non-Markovian- Open Qubit Systems
