Preparation of cluster states and W states with superconducting- quantum-interference-device qubits in cavity QED

Abstract

We propose schemes to create cluster states and W states by many superconducting-quantum-interference-device (SQUID) qubits in cavities under the influence of the cavity decay. Our schemes do not require auxiliary qubits, and the excited levels are only virtually coupled throughout the scheme, which could much reduce the experimental challenge. We consider the cavity decay in our model and analytically demonstrate its detrimental influence on the prepared entangled states.

arXiv comment6 pages, 3 figures, to appear in Phys. Rev. A

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• A review on quantum information processing in cavities
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• Entanglement creation in circuit QED via Landau-Zener sweeps
• Realization of universal quantum cloning with SQUID qubits in a cavity
• Engineering W-type steady states for three atoms via dissipation in an optical cavity
• Unified generation and fast emission of arbitrary single-photon multimode $W$ states
• Deterministic one-way logic gates on a cloud quantum computer
• Generating multipartite entangled states of qubits distributed in different cavities
• A Chain-Boson Model for the Decoherence and Relaxation of a Few Coupled SQUIDs in a Phonon Bath
• Transferring multipartite entanglement among different cavities
• Transferring entangled states of photonic cat-state qubits in circuit QED