Building the Impossible
Their work is not the only one to theorize a violation of this law. In 1867, physicist James Clerk Maxwell designed a thought experiment where a hypothetical being would act as a sort of night club bouncer between the hot and cold room. That being, known as “Maxwell’s Demon,” would only let in particles of certain speeds.
The study could “provide a platform for the practical realization of a quantum Maxwell’s demon,” says Valerii Vinokur, an Argonne Distinguished Fellow and the other author of the study
Vinokur hopes that this could lead into the creation of seemingly impossible machines like a local quantum perpetual motion machine. Another use he sees would be to apply the principles powering devices remotely. In the example he uses, a refrigerator would be able to be cooled at another location.