Maximally entangling tripartite protocols for Josephson phase qubits
Andrei Galiautdinov, John M. Martinis
DOI 10.1103/PhysRevA.78.010305 · Physical Review A
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Abstract
We introduce a suit of simple entangling protocols for generating tripartite Greenberger-Horne-Zeilinger and W states in systems with anisotropic exchange interaction g(XX+YY)+g̃ZZ. An interesting example is provided by macroscopic entanglement in Josephson phase qubits with capacitive (g̃=0) and inductive (0<∣g̃∕g∣<0.1) couplings.
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