B and A are local definitions as lambda and delta are local. A(delta, lambda) is defined by equations 2-5. Using M5 B(delta, lambda) is defined by equations 8-11.For me, as I see it, the model breaks down at assumption 5. This assumption is written in to agree with experimental results. But it explicitly states that B is a function of gamma. Given that gamma is dependent on the orientation of P1 this implies that B depends on said orientation. This is a non local influence. I can’t see how you can get round it.
Photon 1 and photon 2 of a pair share the same lambda.