Physics – Quantum Physics
Scientific paper
2005-10-25
Eur. Phys. J. B 52 377 (2006)
Physics
Quantum Physics
5 pages, 4 figures, derivation of formulae changed
Scientific paper
10.1140/epjb/e2006-00319-2
We theoretically design and analytically study a controllable beam splitter for the spin wave propagating in a star-shaped (e.g., a $Y$-shaped beam) spin network. Such a solid state beam splitter can display quantum interference and quantum entanglement by the well-aimed controls of interaction on nodes. It will enable an elementary interferometric device for scalable quantum information processing based on the solid system.
Song Zhankai
Sun Chang-Pu
Yang Sheng
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