I have come across a weapon by The Killing Star, which is called the Absorbic Bomb.
Apparently, it reverses the formula E = mc^2, of how matter is converted to energy during standard nuclear blasts, such that the bomb in question insteads convert energy to matter, m = E/c^2, essentially the inverse of a nuclear weapon.
Precisely, after the explosion, lots of energy is sucked up from the blast radius and converted into a bit of matter. Ground Zero would suddenly be at zero Kelvin, with a bit of extra dust floating in the air.
The author of The Killing Star, Pellegrino and Zebrowski, said that it could be possible, but requires a giant amount of magnetic monopoles, as stated here:
“The battle within the Sun is, of course, pure ﬁction, constrained only by the hard facts of magnetic ﬁeld projection, solar physics, and orbital mechanics. The absorbic bomb, through which energy can be converted instantaneously into matter (the inverse of a conventional nuclear explosion) does not yet exist, and may never exist unless, according to Powell and Pellegrino, a sufficient number of magnetic monopoles can be found, or created in atomic accelerators and brought together in just the right geometry to produce … Well, perhaps we're all better off not dwelling on how to create this particular nightmare.”
I wonder if such is possible by any means, especially through the use of monopoles as they have claimed.
Also, the main site to learn more about The Absorbic Bomb.
PS If Monopoles do not work, then I wonder if there is any other way for this to be possible.