Tripartite entanglement transfer from flying modes to localized qubits

Abstract

We investigate the process of entanglement transfer from a three-mode quantized field to a system of three spatially separated qubits each one made of a two-level atom resonantly coupled to a cavity mode. The optimal conditions for entanglement transfer, evaluated by atomic tripartite negativity, are derived for radiation prepared in qubit-like and Gaussian entangled states in terms of field parameters, atom-cavity interaction time, cavity mirror losses, and atomic preparation. For qubit-like states we found that for negligible cavity losses some states may completely transfer their entanglement to the atoms and/or be exactly mapped to the atomic state, whereas for Gaussian states we found a range of field parameters to obtain a large entanglement transfer. The purity of the three-qubit states and the entanglement of two-qubit subsystems are also discussed in some details.

12 pages, 12 figs

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Cited by in corpus (12)

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• Quantum Correlations in non-Markovian Environments
• Sudden death and birth of entanglement beyond the Markovian approximation
• Enhancing non-classicality in mechanical systems
• Passing quantum correlations to qubits using any two-mode state
• Realization of Quantum State Privacy Amplification in a Nuclear Magnetic Resonance Quantum System
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• Dynamical Gaussian state transfer with quantum error correcting architecture
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• Tripartite quantum state mapping and discontinuous entanglement transfer in a cavity QED open system
• Global quantum discord and von Neumann entropy in multipartite two-level atomic systems
• Effect of Phase Factor in the Geometric Entanglement Measure of Three-Qubit States