4 6 A B C D E F G H I L M N Ö P Q R S T U V W X

Ultra-high vacuum

Ultra-high vacuum (UHV) refers to a pressure range of 10-7 to 10-12 mbar.

Ultracold atoms

Ultracold atoms are atoms that have been cooled to near absolute zero. They enable the investigation of quantum phenomena and the formation of Bose-Einstein condensates.