feynman said:remember that when a crystal is cooled to absolute zero, the atoms don't stop moving, they still jiggle. Why? If they stopped moving, we would know where they were and that they had zero motion, and that is against the uncertainty principle. We can't know where they are and how fast they are moving, so they must be continually wiggling in there!
Isn't the above two statements contrary?wikipedia-thermal radiation said:thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation.
From Feynman's quote, the atoms must be wiggling even at absolute zero. Thus we can expect the generation of electromagnetic radiation even at absolute zero. In contrast, according to wikipedia, generation of electromagnetic radiation is possible only if the matter has temperature greater than absolute zero.