We have a whole department who works on quantum computers and their relationships to black holes. Yes, it sounds a bit awkward, but here is what I understood from them so far. They literally try to reconstruct a 7-quibit quantum computer to simulate the lost and retrieving information inside a black hole. It was believed that if something goes inside the black hole, it would never return. It was believed that there was no way to figure out what was going on inside a black hole. However, quantum entanglement IS the way! You can use that on Hawking photons( the photons coming from a black hole evaporation which is called Hawking radiation).