单钙离子作为光子极化量子存储器的研究
Single calcium-40 ion as quantum memory for photon polarization: a case study
摘要：
以钙离子和波长为854 nm的光子为例，提出了几种单光子偏振态在单离子中的预示存储方案。我们比较的效率的计划和他们的实施方面的准备的初始状态的离子，吸收过程及其分析的要求。这些方案可以用来通过纠缠交换来产生和预示两个遥远离子的纠缠;它们很容易适应其他原子系统和波长。
英文摘要：
We present several schemes for heralded storage of polarization states of single photons in single ions, using the calcium-40 ion and photons at 854 nm wavelength as specific example. We compare the efficiencies of the schemes and the requirements for their implementation with respect to the preparation of the initial state of the ion, the absorption process and its analysis. These schemes may be used to create and herald entanglement of two distant ions through entanglement swapping; they are easily adapted to other atomic systems and wavelengths.
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