The name invokes one of the most fundamental problems remaining in modern physics: the difficulty in uniting Einstein's theory of relativity, which includes singularities within its models of black holes, and quantum mechanics.
In the Voyager episode "Hunters", the crew discover a Hirogen relay station almost 100,000 years old, powered by a quantum singularity, also referred to by Tom Paris as a black hole.
In the Megas XLR episode "Battle Royale", the villain Magnanimous threatens to drop Kiva and Jamie into a quantum singularity, which he says is "like a black hole, only portable, and with a cooler name."
Once interconnected, a nearby planet is collapsed into a quantum singularity using a special force field to provide the massive power needed to open a wormhole to the Ori galaxy.
The first Ori attempt to create a Supergate in the Milky Way fails, when Vala Mal Doran inserts her Tel'tak into the incomplete ring and prevents the segments from connecting completely.