roton
Britishnoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These atoms interact over long ranges, much as do the atoms in liquid helium9, allowing for a roton — a kind of excitation that has a particular momentum.
From Nature
What sets dipolar BECs apart from other cold-atom experiments is that no external influence is needed to generate the roton.
From Nature
In experiments on dipolar BECs, the energy of this roton can be tuned by using an external magnetic field to adjust repulsive short-range interactions.
From Nature
The existence of a roton allows a BEC to more easily occupy a superposition of two different momenta, effectively moving left and right at the same time.
From Nature
When the energy of the roton hits zero, the superfluid becomes unstable and forms a structure that has a periodic density variation.
From Nature
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
