This question is related to the new experimental work related to catching and reversing a quantum jump in mid-flight. The relevant work can be found here.
Assume that we have two entangled quantum systems A and B of the same type as in the work above, "artificial superconducting atoms". Does a delay or reversal of a quantum jump for system A have any effect on its entangled partner system B? In other words, could a delay or reversal of a quantum jump related to system B be induced by suitable operations applied to its entangled twin, system A?
I suspect the answer is no, since such a possibility would make FTL information transfer possible, but I am not sure. The experimental work and theoretical model (quantum trajectories ) are fairly complicated, and above my level at the moment, so at this point I cannot definitely answer this question . Is unitary evolution preserved in this context, because it is known that unitarity would eliminate the possibility of FTL information transfer (based on the density matrix formalism of quantum mechanics)? I would appreciate some clarification.
A related question (and other references in comments ) can be found here or here. Distinction must be made between continuous quantum jumps and continuous collapse of the wavefunction, so the latter will require a different experimental setup, and different quantum states.
