Entanglement between two superconducting qubits via interaction with nonclassical radiation
Mauro Paternostro, Giuseppe Falci, Myungshik Kim, G. Massimo Palma
DOI 10.1103/PhysRevB.69.214502 · Physical Review B
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Abstract
We propose a scheme to physically interface superconducting nanocircuits and quantum optics. We address the transfer of quantum information between systems having different physical natures and defined in Hilbert spaces of different dimensions. In particular, we investigate the transfer of the entanglement initially in a nonclassical state of an infinite dimensional system to a pair of superconducting charge qubits. This setup is able to drive an initially separable state of the qubits into an almost pure, highly entangled state suitable for quantum information processing.
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