Virtual black hole

A "virtual black hole" is not a standard term in astrophysics, but it can refer to a couple of different concepts depending on the context: 1. **Quantum Physics Context**: In the realm of quantum mechanics, virtual particles are temporary fluctuations that occur in a vacuum. Some theoretical frameworks suggest the existence of "virtual black holes" as a way to understand certain aspects of quantum gravity, where the properties of black holes may emerge from more fundamental quantum states.