It is not possible to create an artificial black hole in a laboratory using current technology. The smallest black holes that could theoretically exist would have a mass of about 10^15 grams, which is about the mass of an asteroid. To create a black hole of this size, we would need to accelerate particles to near the speed of light and then collide them together. This would require an enormous amount of energy, far more than is available in any laboratory.

Even if we could create an artificial black hole, it would be very difficult to detect. Black holes do not emit any light, so we would not be able to see them directly. However, we could look for indirect evidence of their existence, such as the Hawking radiation that they emit. Hawking radiation is a form of thermal radiation that is emitted by black holes. It is caused by the quantum fluctuations of the vacuum around the black hole.

If we were to create an artificial black hole in the laboratory, we would know that we had done so by detecting its Hawking radiation. The Hawking radiation would be a very weak signal, but it would be detectable with sensitive instruments.

It is important to note that the creation of an artificial black hole would be a very dangerous undertaking. If a black hole were to escape from the laboratory, it could potentially destroy the planet or even the entire galaxy. For this reason, it is important to carefully consider the risks before attempting to create an artificial black hole.