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arXiv 1106.2667quant-ph
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对“纠缠对一对H(2 p)原子自发发射衰变动力学的影响“一文的评论

Comment on "Effect of entanglement on the decay dynamics of a pair of H(2p) atoms due to spontaneous emission"

Pedro Sancho, Luis Plaja

摘要:

Tanabe等人(Phys.Rev.A { \bf 82} 040101(R)2010)已经通过实验证明了处于纠缠态和产物态的不稳定原子的发射性质是不同的。作者定义了一个表观衰减时间作为拟合参数,该参数低于纠缠对的单原子寿命。我们认为,他们的符合时间谱的结果是正确的,但那些关于寿命不能被认为是决定性的,因为他们假设的光子发射的两个原子是独立的过程,一个可疑的假设纠缠态。我们建议一个严格的方法,这需要一些修改的实验程序的基础上改进的寿命评估。

英文摘要:

Tanabe et al (Phys. Rev. A {\bf 82} 040101(R) 2010) have experimentally demonstrated that the emission properties of unstable atoms in entangled and product states are different. The authors define an apparent decay time as a fitting parameter which falls below the lifetime of the single atom for entangled pairs. We argue that their results about coincidence time spectra are correct, but those concerning lifetimes cannot be considered conclusive because they assume the emission of photons by the two atoms to be independent processes, a doubtful hypothesis for entangled states. We suggest an improved evaluation of the lifetimes based on a rigorous approach, which demands some modifications of the experimental procedure.

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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