One-sentence description of a heat pump from the physics perspective - how to describe it?

I have noticed that there is a problem with understanding the operation of a heat pump from a physics perspective. There are plenty of descriptions from a technical standpoint, but I don't see any from a physics standpoint.

When someone writes about a refrigerator, compressor, it is a technical description.

So I am curious how to describe a heat pump in one sentence from a physics perspective.

I have noticed that there is a problem with understanding the operation of a heat pump from a physics perspective. There are plenty of descriptions from a technical standpoint, but I don't see any from a physics standpoint.

When someone writes about a refrigerator, compressor, it is a technical description.

So I am curious how to describe a heat pump in one sentence from a physics perspective.

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