Definition of selection rule in English:

Share this entry

selection rule

noun

Physics
A rule which describes whether particular quantum transitions in an atom or molecule are allowed or forbidden.
Example sentences
  • This issue is related to the inhibition of carrier relaxation due to the selection rule of interaction between electrons and phonons in discrete energy level systems.
  • Because the selection rules for one- and two-photon transitions differ, it is possible that 2PE can occur at energies where no corresponding one-photon absorption exists.
  • There are simple selection rules that usually work in spectroscopy, corresponding to the known properties of atoms.

For editors and proofreaders

Line breaks: se¦lec|tion rule

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.