Eur. Phys. J. B 52, 377-381 (2006)
https://doi.org/10.1140/epjb/e2006-00319-2

Beam splitter for spin waves in quantum spin network

¹ Department of Physics, Nankai University, Tianjin, 300071, P.R. China
² Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100080, P.R. China

Corresponding authors: ^a songtc@nankai.edu.cn - ^b suncp@itp.ac.cn

Received: 26 February 2006
Revised: 2 June 2006
Published online: 7 August 2006

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.