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Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits

J. Q. You·J. S. Tsai·Franco Nori
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Abstract

We present an experimentally implementable method to couple Josephson charge qubits and to generate and detect macroscopic entangled states. A large-junction superconducting quantum interference device is used in the qubit circuit for both coupling qubits and implementing the readout. Also, we explicitly show how to achieve a microwave-assisted macroscopic entanglement in the coupled-qubit system.

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J. Q. You, J. S. Tsai, Franco Nori. 2003-09-22. Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits. https://doi.org/10.1103/physrevb.68.024510

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