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Generation and detection of the photonic qutrit by linear optics, Quantum Inform
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论文类型：期刊论文
发表刊物：Quantum Inform. Compu
所属单位：College of Information Science and Engineering, Zhejiang University, Hangzhou, China and School of I
刊物所在地：美国
学科门类：工学
项目来源：自然科学基金
文献类型：J
卷号：8
期号：5
页面范围：386-398
关键字：无
发表时间：2008-05-13
摘要：We address the problem of generation and detection of the four mutually unbiased biphoton polarization-qutrit bases by linear optics. First, the generation of the bases is studied. Our numeric results show that the linear optics method can be used to generate the 4 mutually unbiased basis qutrit states probabilistically with high fidelity. Second, we investigate whether or not linear polarization-optics components are sufficient to realize the simultaneous detection of the qutrit states forming a complete basis. Analytical results show that every state in two of the bases, namely only half of the 4 mutually unbiased bases qutrit states can be identified.
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