Science journalism never fails to disappoint.
https://www.vox.com/culture/24108638/3-body-problem-science-physics-theory-explained-how-real-is-it This is one of those "the real science behind the show" things, and it says faster-than-light communication is possible through quantum entanglement. 
The author completely misses the point of the expert quote cited. #Ansible
spoilers
The annoying thing is that the plot doesn't seem to need this: the Sophons can just act as the Trisolarian's agent here, and send reports back to the invasion fleet. (Granted, I have only read the first book and watched the first season.) When reading the book I think I even missed the part about FTL communication; I thought they were just doing what I described here.
