Recently, Wildfeuer et al. [Phys. Rev. A 76, 052101 (2007)] studied possible experiments demonstrating nonlocal correlation effects through the violation of various Bell-type inequalities by maximally path-entangled number states of the form (|N|)|0)+e~(iΦ)|(0)|N|)/ 2, the so-called NOON states, and some strong violations were found. In this paper, we re-examine the same Bell-type inequalities with respect to maximally path-entangled coherent states of the form N(|a)_a|0)b+e~iΦ0)_a(a e~(iθ)_b). We find in many cases even stronger violations of the Bell-type inequalities than appear to be possible with the NOON states.
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机译：最近，Wildfeuer等人。 [物理Rev. A 76，052101（2007）]研究了可能的实验，这些实验通过最大形式的（| N |）| 0）+ e〜（iΦ）纠缠的数态来证明通过违反各种Bell型不等式来证明非局部相关效应|（0）| N |）/ 2，即所谓的NOON状态，并且发现了一些严重的违规情况。在本文中，我们针对形式为N（| a）_a | 0）b + e〜iΦ0）_a（ae（（iθ）_b）的最大路径纠缠相干态，重新研究了相同的Bell型不等式。我们发现，在许多情况下，对钟型不平等现象的侵犯甚至比在NOON状态下似乎更为严重。
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