A boltzmon (named after the nineteenth-century thermodynamicist Ludwig Boltzmann) is a theoretical subatomic particle postulated to be created after the explosion of a black hole.

The boltzmon was proposed as a means of explaining what happens to the information of objects consumed by black holes while still preserving purity. One theory, proposed by the Dutch researcher Gerard ’t Hooft, is that information is contained in the particles that Hawking-radiate from the black hole. The other theory includes the boltzmon particle.

This theory postulates that a black hole leaves behind a remnant when it explodes—a single particle that has been dubbed the boltzmon. A boltzmon would be about the size of the Planck-Wheeler area, or 10⁻⁶⁶ cm², which is supposedly about as small as anything can be. It would contain the sum total of all the information ever consumed by the black hole, so each boltzmon would be unique in the universe. While a typical particle has a few states (positive or negative electrical charge, integral or fractional spin, etc.), a boltzmon would have an infinite number of states and as a result, would be highly unstable. If disturbed, it might make a hole in spacetime and vanish into it, thus departing from our universe.

References

Ferris, Timothy. The Whole Shebang, 1997 Simon & Schuster.