"The atoms become like a moth, seeking out the region of higher laser intensity"

This quote by Steven Chu is describing the sensation of laser cooling, which is a process of cooling down atoms to temperature levels near outright no. In laser cooling, atoms are revealed to a laser light beam, which triggers them to soak up and also give off photons. The atoms come to be attracted to the region of higher laser strength, similar to a moth being attracted to a source of light. This destination creates the atoms to reduce and ultimately reach temperature levels close to absolute absolutely no. Laser air conditioning has actually been used to research the habits of atoms at very low temperature levels, as well as has been used to produce Bose-Einstein condensates, which are a state of issue that can only exist at extremely low temperatures. This quote by Steven Chu is a wonderful instance of just how laser air conditioning works, as well as exactly how atoms can be cooled down to temperatures near outright zero.