Bell's inequality was used to prove incompatibility between local and hidden variable theories. What's the point of fancier Bell's inequalities?
[We] find a Bell inequality that is more robust to noise than the celebrated Clauser-Horne-Shimony-Holt Bell inequality. Finally, we elaborate on the tension between mathematical beauty, which was our initial motivation, and experimental friendliness, which is necessary in all empirical sciences
- Their violation may be more practical to verify experimentally
- They may be less prone to various loopholes
- They may be more beautiful
- They may elucidate something deeper about the structure of quantum mechanics