Diffusion and transfer of entanglement in an array of inductively coupled flux qubits

Abstract

A theoretical scheme to generate multipartite entangled states in a Josephson planar-designed architecture is reported. This scheme improves the one published in [Phys. Rev. B 74, 104503 (2006)] since it speeds up the generation of W entangled states in an MxN array of inductively coupled Josephson flux qubits by reducing the number of necessary steps. In addition, the same protocol is shown to be able to transfer the W state from one row to the other.

5 pages, 1 figure, to be published on Phys. Rev. B 2007

References in corpus (4)

• Superconducting Circuits and Quantum Information
• Direct Josephson coupling between superconducting flux qubits
• Characterization of a fabrication process for the integration of superconducting qubits and RSFQ circuits
• Tunable Flux Qubit manipulated by fast pulses: operating requirements, dissipation and decoherence