These substances have been called the “fifth state” of matter. For 10 points each:
[10e] Name these doubly-eponymous substances named for an Indian and German scientist. These substances were first produced by super-cooling rubidium atoms.
ANSWER: Bose-Einstein condensates [accept BECs]
[10h] When slow atoms in a BEC inelastically collide, an unstable bound state called a “resonance” named after this MIT physicist can be produced.
ANSWER: Herman Feshbach [accept Feshbach resonance]
[10m] At absolute zero, the constituent bosons of BECs gain this property meaning all the bosons are in the same state States with this property are eigenstates of the annihilation operator.
ANSWER: coherence [accept word forms like coherent]
<AG, Physics>