Multipartite Entanglement Generation Assisted by Inhomogeneous Coupling

Details Multipartite Entanglement Generation Assisted by Inhomogeneous Coupling Multipartite Entanglement Generation Assisted by Inhomogeneous Coupling

2011-11-21

arxiv.org/abs/1111.4966v1

Phys. Rev. A 85, 032319 (2012)

Physics

Quantum Physics

5 pages, 4 figures. Submitted for publication

Scientific paper

We show that controllable inhomogeneous coupling between two-level systems and a common data bus provides a fast mechanism to produce multipartite entanglement. Our proposal combines resonant interactions and engineering of coupling strengths---between the qubits and the single mode---leading to well defined entangled states. Furthermore, we show that, if the two-level systems interact dispersively with the quantized mode, engineering of coupling strengths allows the controlled access of the symmetric Hilbert space of qubits.

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