I am CS/Math person I am not quite sure what it means in physics information cannot be transferred faster than light (FTL). I tried to understand the proof of no transfer theorem but I lacked the understanding of quantum mechanics ( actually physics in general ).
So I would be grateful if somebody with physics knowledge answered my questions.
The experiment goes like this:
Alice and Bob is given some pairs of entangled qubits ( A1, A2,... ; B1, B2, ...) Ai are entangled with Bi.
Alice and Bob are both aware of the each other's basis for the measurement beforehand when certain event happens.
(Ai) and (Bi) are separated.
Both agree that they will perform the measurement approximately after certain time T has passed.
After time T if certain event happened in time interval ( 0 , T ) to B , B measures the qubits w.r.t the sequence of basis that A already knows. ex) A knows that if B is injured B will measure the qubits (Bi) with basis ( b1, b2, b3, ... ) , if B is happy and well B will measure with ( c1, c2, c3... ).
In this case is it possible that if something happened to B in (0,T), A and B measures the qubit on some time in ( T, ~ ) ,the information that certain event happened to B transferred FTL to Alice?