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.
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City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
Zhang, Qingtian
Chan, K. S.
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 5183000, Peoples R ChinaCity Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China