The main result of the theory is that the scattering amplitude for potential scattering grows as a function of the cosine z of the scattering angle as a power that changes as the scattering energy cha ...
When an alpha particle is an incident particle and it is diffracted in the Coulomb potential of atoms and molecules, the elastic scattering process is called Rutherford scattering. In many electron di ...
While other trajectories lead to falling cross sections, the pomeron can lead to logarithmically rising cross sections which experimentally are approximately constant ones. The identification of the p ...
WIMP-like particles are predicted by R-parity-conserving supersymmetry, a popular type of extension to the standard model of particle physics, although none of the large number of new particles in sup ...
In particle physics, a plekton is a theoretical kind of particle, which obeys a different style of statistics with respect to the interchange of identical particles. That is, it would be neither a bos ...
In mathematics and theoretical physics, braid statistics is a generalization of the statistics of bosons and fermions based on the concept of braid group. A similar notion exists using a loop braid gr ...
"Graphene" is a combination of graphite and the suffix -ene, named by Hanns-Peter Boehm, who described single-layer carbon foils in 1962.The term graphene first appeared in 1987 to describe single she ...
In space of three or more dimensions, elementary particles are either fermions or bosons, according to their statistical behaviour. Fermions obey the so-called Fermi–Dirac statistics while bosons obe ...
The concept of a magnon was introduced in 1930 by Felix Bloch in order to explain the reduction of the spontaneous magnetization in a ferromagnet. At absolute zero temperature, a ferromagnet reaches t ...
L. D. Landau and S. I. Pekar formed the basis of polaron theory. A charge placed in a polarizable medium will be screened. Dielectric theory describes the phenomenon by the induction of a polarizati ...
A polariton is the result of the mixing of a photon with an excitation of a material. The following are types of polaritons:Phonon polaritons result from coupling of an infrared photon with an optic p ...
Plasmons can be described in the classical picture as an oscillation of free electron density with respect to the fixed positive ions in a metal. To visualize a plasma oscillation, imagine a cube of m ...
In solid-state physics, an electron hole (usually referred to simply as a hole) is the absence of an electron from an otherwise full valence band. A hole is essentially a way to conceptualize the inte ...
Excitons may be treated in two limiting cases, depending on the properties of the material in question.Frenkel excitons In materials with a small dielectric constant, the Coulomb interaction between a ...
The crystal structure of a material (the arrangement of atoms within a given type of crystal) can be described in terms of its unit cell. The unit cell is a small box containing one or more atoms arra ...
