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About Roton
In theoretical physics, a roton is an elementary excitation, or quasiparticle, seen in superfluid helium-4 and Bose–Einstein condensates with long-range dipolar interactions or spin-orbit coupling. The dispersion relation of elementary excitations in this superfluid shows a linear increase from the origin, but exhibits first a maximum and then a minimum in energy as the momentum increases. Excitations with momenta in the linear region are called phonons; those with momenta close to the minimum are called rotons. Excitations with momenta near the maximum are called maxons. The term "roton-like" is also used for the predicted eigenmodes in 3D metamaterials using beyond-nearest-neighbor coupling.
Source: Wikipedia · CC BY 3.0
The Story
Internal combustion aid for motors
The Pitch on Dragons' Den UK
Roton appeared on Dragons' Den UK (Series 2, Episode 3) in 2005. Kingsley Wright pitched the product to the Dragons. No deal.
Where they are now: Roton's pitch failed due to the dragons citing the product did not work. Terms not broadcast. Dissolved by 2011. Status: Dissolved (2011).
