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

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

2006-08-14

arxiv.org/abs/quant-ph/0608111v1

Phys. Rev. A 74, 024303 (2006)

Physics

Quantum Physics

6 pages, 3 figures, to appear in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.74.024303

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.

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