Coherent Generation of the Complete High-Dimensional Bell Basis by Adaptive Pump Modulation
Coherent Generation of the Complete High-Dimensional Bell Basis by Adaptive Pump Modulation
复制标题
通过自适应泵浦调制相干生成完整的高维贝尔基
DOI:
10.1103/physrevapplied.14.054069
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发表时间:
2020-05
影响因子:
4.6
通讯作者:
Chen Lixiang
中科院分区:
文献类型:
--
作者:
Chen Yuanyuan;Zhang Wuhong;Zhang Dongkai;Qiu Xiaodong;Chen Lixiang
The Bell basis, a set of maximally entangled biphoton states, is a critical prerequisite towards quantum information processing, and many quantum applications have highlighted the requirement for manipulation of the high-dimensional Bell basis. While Bell states can be created by using ingenious single-photon quantum gates, their implementation complexity in higher dimensions is significantly increased. Here we present an elaborate approach to show that the adaptive pump modulation enables the efficient preparation of the Bell basis in arbitrary-dimensional Hilbert space. A complete set of four-dimensional orbital angular momentum Bell states is experimentally created, yielding high fidelities for certifying the entanglement dimensionality. Our strategy can be simply generalized to prepare more complex forms of quantum states, even exploiting other physical degrees of freedom. Also, it can facilitate the use of high-dimensional entanglement in a variety of quantum protocols, in particular those requiring quantum dense coding.
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