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arXiv · 1106.3237

Generating entanglement between microwave photons and qubits in multiple cavities coupled by a superconducting qutrit

Chui-Ping Yang·Qi-Ping Su·Shi-Biao Zheng·Siyuan Han
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Abstract

We discuss how to generate entangled coherent states of four \textrm{microwave} resonators \textrm{(a.k.a. cavities)} coupled by a superconducting qubit. We also show \textrm{that} a GHZ state of four superconducting qubits embedded in four different resonators \textrm{can be created with this scheme}. In principle, \textrm{the proposed method} can be extended to create an entangled coherent state of $n$ resonators and to prepare a Greenberger-Horne-Zeilinger (GHZ) state of $n$ qubits distributed over $n$ cavities in a quantum network. In addition, it is noted that four resonators coupled by a coupler qubit may be used as a basic circuit block to build a two-dimensional quantum network, which is useful for scalable quantum information processing.

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Chui-Ping Yang, Qi-Ping Su, Shi-Biao Zheng, Siyuan Han. 2013-07-04. Generating entanglement between microwave photons and qubits in multiple cavities coupled by a superconducting qutrit. https://doi.org/10.1103/physreva.87.022320

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