Entanglement between two superconducting qubits via interaction with non-classical radiation

Details Entanglement between two superconducting qubits via interaction with non-classical radiation Entanglement between two superconducting qubits via interaction with non-classical radiation

2003-07-23

arxiv.org/abs/quant-ph/0307163v2

Phys. Rev. B 69, 214502 (2004)

Physics

Quantum Physics

4 pages, RevTeX; revised version

Scientific paper

10.1103/PhysRevB.69.214502

We propose a scheme to physically interface superconducting nano-circuits 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 non-classical state of a continuous-variable system to a pair of superconducting charge qubits. This set-up 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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