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arXiv 2108.12403quant-ph
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利用光子轨道angular momentum和探测基控制产生四维超纠缠N00N态及以上

Generation of four-dimensional hyperentangled N00N states and beyond with photonic orbital angular momentum and detection-basis control

José César Guerra Vázquez, Emmanuel Narváez Castañeda, Roberto Ramírez Alarcón, Imad Agha, Qiwen Zhan, William N. Plick

摘要:

光子模式的超纠缠是量子信息处理和量子通信中的宝贵资源。在这里,我们提出了一个新的协议,使用两个光学非线性的干扰和控制的预示(检测)的基础上的轨道角动量自由度。这种设置能够产生至少在四维中最大和超纠缠的状态。四维情况下的结果态是所谓的N 00 N态(量子光学中众所周知的最大路径纠缠态)的推广。这种状态的产生至少在理想情况下是“完美的”(换句话说,无噪声),排除实验缺陷。所提出的设置是非常通用的,并且通过控制检测和泵送协议,可以搜索任意大维度的非常大的参数空间以获得其他感兴趣的状态。此外,我们提出了具体的情况下,展示了如何从两个,到三个,到四个维度的状态可能会调整-这可能是进一步的理论和实验的兴趣。

英文摘要:

Hyperentanglement of photonic light modes is a valuable resource in quantum information processing and quantum communication. Here we propose a new protocol using the interference of two optical nonlinearities and control of the heralding (detection) basis in the orbital-angular-momentum degree of freedom. This setup is capable of generating states which are both maximally- and hyper- entangled in at least four dimensions. The resultant state in the four-dimensional case is a generalization of the so-called N00N state (a maximally path-entangled state well known in quantum optics). The production of this state is "perfect" (in other words noise-less) at least in the ideal case, excluding experimental imperfections. The presented setup is very versatile, and with control of the detection and pumping protocols a massively-large parameter space, of arbitrarily-large dimensionality, may be searched for other states of interest. Also, we present specific cases demonstrating how the state may be tuned from two, to three, to four dimensions -- which may be of further theoretical and experimental interest.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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