On the lifetime-width relation for a decaying state and the uncertainty principle.
A new formulation of the uncertainty relation of position and momentum, and of energy and time, is presented. The connection between the lifetime of excited states and the energy width of these states, which does not follow from the usual uncertainty relation, is shown to be a consequence of the expression here derived.
Instituto de Fisica, Universidad Nacional Autónoma de México, Apartado Postal 20-364, México 20, D.F.
M
M
Bauer
P A
PA
Mello