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.
@article{arxiv.quant-ph/0510194,
title = {Beam Splitter for Spin Waves in Quantum Spin Network},
author = {S. Yang and Z. Song and C. P. Sun},
journal= {arXiv preprint arXiv:quant-ph/0510194},
year = {2011}
}
Comments
5 pages, 4 figures, derivation of formulae changed