from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of a temperature close to absolute zero, especially one at which quantum-mechanical properties are observed.
  • adj. Extremely cold.


Sorry, no etymologies found.


  • Physicists at the Joint Quantum Institute (JQI) of the National Institute of Standards and Technology (NIST) and the University of Maryland have proposed a recipe for turning ultracold “boson” atoms — the ingredients of Bose-Einstein condensates — into a “supersolid,” an exotic state of matter that behaves simultaneously as a solid and a friction-free superfluid.

    Odin's Day

  • A new method has been developed to directly and precisely measure a quantum property of individual atoms -- the phase shifts that result when they collide at ultracold temperatures -- in a way that is independent of the accuracy-limiting density of the atoms.

    The Game of Rat and Penguin

  • It is pretty easy to do a poll perhaps not well..., it is pretty hard to to ultracold STM of atomic junctions.

    Free Will and Behavioral Genetics, Bryan Caplan | EconLog | Library of Economics and Liberty

  • At that time the quantum physics of ultracold atoms had become an important focus of our research.

    Theodor W. Hänsch - Autobiography

  • Optimizing Science Education and the Myth of a Necessary 'Super Teacher' by Carl Wieman an educator who also happens to have won the Nobel Prize for Physics in 2001 for creating a new ultracold state of matter, the so-called Bose-Einstein condensate

    Archive 2008-12-01

  • The record-breaking lows were among the latest feats of ultracold physics, the laboratory study of matter at temperatures so mind-bogglingly frigid that atoms and even light itself behave in highly unusual ways.

    Wow, that's cold!

  • Physicists at JILA have performed the first-ever precision measurements using ultracold molecules, in work that may help solve a long-standing scientific mystery -- whether so-called constants of nature have changed since the dawn of the universe.

    April 28th, 2006

  • It was the pipe that delivered the ultracold liquid helium to the magnets.

    Final Theory

  • This wave of matter will keep going and enter another nearby ultracold condensate.

    Archive 2007-02-01

  • Two years later, she brought light to a complete halt in a cloud of ultracold atoms.

    Light and Matter United


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