Interpreting photon correlations from independent sources

[DrChinese]

@DrChinese As the holidays are now over for me I will have to reduce my posting frequency but over the next couple days I will read your post and formulate a reply. I suspect this statement by Ma will be relevant but I will know for sure in my response.

No problem on timing, take all the time you need

But please don’t over focus on the Ma quote. Don’t forget that the Megadish paper demonstrates the same results. But it’s mechanism for stopping a swap is such that the issues you have been raising are not a factor.

 

[DrChinese]

I ask to understand better, if "swap yes" or "swap no" affects the results, doesn't that mean that the swap is also a form of measurement that breaks the entanglement between (1&4)?

The swap doesn’t break the entanglement, it creates the entanglement between 1 & 4. The swamp breaks the entanglement between 1 & 2 though (and between 3 & 4)

 

[javisot20]

The swamp breaks the entanglement between 1 & 2 though (and between 3 & 4)

It breaks them to entangled 1&4 and 2&3 (not mutually), right?