Generating entanglement among microwave photons and qubits in multiple cavities coupled by a superconducting qubit

Details Generating entanglement among microwave photons and qubits in multiple cavities coupled by a superconducting qubit Generating entanglement among microwave photons and qubits in multiple cavities coupled by a superconducting qubit

2011-06-16

arxiv.org/abs/1106.3237v2

Physics

Quantum Physics

7 pages, 3 figures

Scientific paper

We propose a novel method for generating entangled coherent states of four microwave resonators (a.k.a. cavities) coupled by a superconducting qubit. We also show that a GHZ state of four superconducting qubits embedded in four different resonators can be created with this scheme. In principle, the proposed method can be extended to create an entangled coherent state of n resonators and to prepare a GHZ state of n qubits distributed over n cavities in a quantum network efficiently. More importantly, the qubit coupled cavities, with multiple qubits embedded in each cavity, can be used as the basic circuit block to build scalable quantum networks for quantum information processing.

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