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arXiv · 1406.5767

Sudden change in dynamics of genuine multipartite entanglement of cavity-reservoir qubits

Mazhar Ali·A. R. P. Rau
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Abstract

We study the dynamics of genuine multipartite entanglement for a system of four qubits. Using a computable entanglement monotone for multipartite systems, we investigate the as yet unexplored aspects of a cavity-reservoir system of qubits. For one specific initial state, we observe a sudden transition in the dynamics of genuine entanglement for the four qubits. This sudden change occurs only during a time window where neither cavity-cavity qubits nor reservoir-reservoir qubits are entangled. We show that this sudden change in dynamics of this specific state is extremely sensitive to white noise.

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Mazhar Ali, A. R. P. Rau. 2014-06-22. Sudden change in dynamics of genuine multipartite entanglement of cavity-reservoir qubits. https://doi.org/10.1103/physreva.90.042330

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