Haruna Katayama of Hiroshima University in Japan has proposed something interesting: a black hole laser that could advance technologies like quantum computing and other areas of quantum mechanics. The idea comes from what Physics World described as “an electromagnetic analogue for a black hole laser – a system that could theoretically amplify Hawking radiation from the event horizon of a black hole and make it observable”. From the original paper:
Black hole lasers have not been discussed in superconducting transmission lines so far. However, there are some advantages to the study of black hole lasers due to the latest technology accumulated in research such as quantum computers. In particular, the scalability and controllability of the system is an advantage over other systems.