Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits
J. Q. You, J. S. Tsai, Franco Nori · Physical review. B, Condensed matter · 2003
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.