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arXiv · 0812.4253

Entanglement and Disentanglement in Circuit QED Architectures

David Zueco·Georg M. Reuther·Peter Hänggi·Sigmund Kohler
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Abstract

We propose a protocol for creating entanglement within a dissipative circuit QED network architecture that consists of two electromagnetic circuits (cavities) and two superconducting qubits. The system interacts with a quantum environment, giving rise to decoherence and dissipation. We discuss the preparation of two separate entangled cavity-qubit states via Landau-Zener sweeps, after which the cavities interact via a tunable "quantum switch" which is realized with an ancilla qubit. Moreover, we discuss the decay of the resulting entangled two-cavity state due to the influence of the environment, where we focus on the entanglement decay.

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David Zueco, Georg M. Reuther, Peter Hänggi, Sigmund Kohler. 2008-12-22. Entanglement and Disentanglement in Circuit QED Architectures. https://doi.org/10.1016/j.physe.2009.06.074

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