Beam Splitter for Spin Waves in Quantum Spin Network
arXiv:quant-ph/0510194 · doi:10.1140/epjb/e2006-00319-2
Abstract
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.
5 pages, 4 figures, derivation of formulae changed