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arXiv 1003.2344quant-ph
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衍射光栅中的全同双粒子干涉

Identical two-particle interferometry in diffraction gratings

Pedro Sancho

摘要:

我们研究了不可分辨粒子的衍射和干涉。我们考虑一些例子,波函数和检测概率可以在一个分析的方式进行评估。两粒子系统的衍射图样在玻色子、费米子和可分辨粒子的情况下表现出了臭名昭著的差异。在近场干涉测量的例子中,两个费米子系统的交换效应导致存在双重检测概率为零的平面。本文还讨论了它与基于关联函数的全同粒子系统方法的关系。特别地,我们将看到,这些函数反映了衍射光栅的基本周期性结构,就像在噪声干涉测量中一样。

英文摘要:

We study diffraction and interference of indistinguishable particles. We consider some examples where the wavefunctions and detection probabilities can be evaluated in an analytical way. The diffraction pattern of a two-particle system shows notorious differences for the cases of bosons, fermions and distinguishable particles. In the example of near-field interferometry, the exchange effects for two-fermion systems lead to the existence of planes at which the probability of double detection is null. We also discuss the relation with the approach to systems of identical particles based on correlation functions. In particular, we shall see that these functions reflect, as in noise interferometry, the underlying periodic structure of the diffraction grating.

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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