Raizen, Muga, and Ruschha
Raizen, Muga, and Ruschhaupt's "single-photon cooling" is the closest it is possible to get to this entity, and Rolf Landauer's refutation of this idea argues that information cannot be stored indefinitely, leading him to the conclusion reached earlier by Leo Szilard. The most famous disproof of it claims that it would have to (*) expend energy to measure speeds and sort particles, preventing entropy from decreasing. For ten points, identify this physics thought experiment in which the Second Law of Thermodynamics would be violated by its namesake creature.
Raizen, Muga, and Ruschhaupt's "single-photon cooling" is the closest it is possible to get to this entity, and Rolf Landauer's refutation of this idea argues that information cannot be stored indefinitely, leading him to the conclusion reached earlier by Leo Szilard.
{Maxwell’s Demon}