Not exact matches
In practice, the proposed experiment would consist in preparing a topological phase, by loading an ultracold gas into an optical lattice, and in subsequently shaking this lattice in a circular manner; the resulting heating rates would then be extracted by measuring the
number of atoms that
remained in the topological phase after a certain duration
of shaking.
«Such galaxies, which have
remained dormant for most
of their lives, are believed to contain the chemical elements forged a few minutes after the Big Bang.By measuring the relative
number of hydrogen and helium
atoms in the Little Cub we might be able to learn more about what made up the Universe in the moments after it began 13.7 billion years ago,» Cooke added.
For instance, radiocarbon dating determines the age
of biological
remains based on the ratio between the carbon isotopes (
atoms of the same element with different
numbers of neutrons) carbon - 12 and carbon - 14 it holds - this proportion changes as radioactive carbon - 14 breaks down while stable carbon - 12 does not.