After reading up on quantum mechanics considering entangled qubits I was asking myself this simple question:
If one qubit (A) positioned on earth is entangled with another qubit (B) which is - say - a lightyear away, and we perform a bell-measurenment with (B) and an additional qubit (C), it would cause the entanglement of (A) and (B) to break in an instant, or am I wrong? Wouldn't that mean that a communication (say via morse-code) with speed that's exceeding the speed of light from point a to point b is possible? If so, isn't it also possible to communicate from out of a black hole using this method? (disregarding time-dilation).