ultracold
- adjective
- /ˈʌltrəˌkoʊld/
- Specialized
:
ultracongelado
- Scientists cooled the gas to an ultracold state, far below any temperature previously achieved in the lab.
- ultracold atoms
- ultracold gases
- ultracold neutrons
Examples
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Eric Heller of Harvard University says that the two experiments highlight the dramatic quantum manipulation of ultracold gases that is now possible and raise new issues in quantum dynamics.
Academic text (2001) -
It should now be very interesting to study what happens when ultracold bosonic molecules dissociate into their fermionic constituents.
Academic text (2003) -
Proof of molecule formation is established by looking at changes in the number of ultracold potassium-40 atoms in each of the three spin states.
Academic text (2003) -
Pattern of vortices as seen in an ultracold Fermi gas at three different values of the magnetic field.
Academic text (2005) -
It was also seen in a system of ultracold atoms by Raizen and his group at the University of Texas at Austin.
Academic text (2001) -
For several years, experimental groups have used various techniques to coax ultracold atoms to pair as molecules (see PHYSICS TODAY, September 2000, page 46).
Academic text (2003) -
Although there's been some evidence for dynamical tunneling in molecular systems, it has now been seen very directly in two new experiments on ultracold atoms.
Academic text (2001) -
One can conduct experiments with an ultracold Fermi gas in a highly controlled way, such as dialing the magnetic field to reach a given interaction strength.
Academic text (2005) -
They report seeing vortices, a hallmark of superfluidity, in an ultracold fermionic gas.
Academic text (2005) -
Fortuitously, experimenters can take a gas of ultracold fermionic atoms smoothly from the BEC regime to the BCS regime simply by tuning a magnetic field.
Academic text (2005)
Synonyms
17
8.2
Relating to very low temperatures used in science and industry
Antonyms
How Cold
Surface Forms
Morphology
Etymology
Ultracold joins ultra- ('beyond' or 'extreme') with cold. In science it means 'almost at absolute zero', so it describes conditions much colder than normal and is used when researchers study atoms at those very low temperatures.