Entanglement and Disentanglement in Circuit QED Architectures

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 p...

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Bibliographic Details
Published in:arXiv.org 2008-12
Main Authors: Zueco, David, Reuther, Georg M, Hänggi, Peter, Kohler, Sigmund
Format: Article
Language:English
Subjects:
Decay
Holes
Quantum electrodynamics
Quantum entanglement
Qubits (quantum computing)
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0812.4253