ars: can you back up that claim? What about the description makes you think it is not a heat pump? Such a thing is possible and exists: energy in results in e

ars: can you back up that claim? What about the description makes you think it is not a heat pump? Such a thing is possible and exists: energy in results in energy (i.e. heat) transfer from one location to another, against an energy gradient. From the description given in the article, it seems that the energy input is simply being used to move energy from one location to another – it just so happens that the energy is sourced as heat, and is deposited as light. This is really not much different from a heat pump, so I see no reason it can't move heat up a gradient.