The **Transition dipole moment** or **Transition moment**, usually denoted for a transition between an initial state, and a final state, is the electric dipole moment associated with the transition between the two states. In general the transition dipole moment is a complex vector quantity that includes the phase factors associated with the two states. Its direction gives the polarization of the transition, which determines how the system will interact with an electromagnetic wave of a given polarization, while the square of the magnitude gives the strength of the interaction due to the distribution of charge within the system. The SI unit of the transition dipole moment is the Coulomb-meter (Cm); a more conveniently sized unit is the Debye (D).

Read more about Transition Dipole Moment: Definition, Analogy With A Classical Dipole, Origin, Applications

### Other articles related to "transition dipole moment, transitions, dipole, transition":

**Transition Dipole Moment**- Applications

... The

**transition dipole moment**is useful for determining if

**transitions**are allowed under the electric

**dipole**interaction ... For example, the

**transition**from a bonding orbital to an antibonding orbital is allowed because the integral defining the

**transition dipole moment**is nonzero ... Such a

**transition**occurs between an even and an odd orbital the

**dipole**operator is an odd function of, hence the integrand is an even function ...

### Famous quotes containing the words moment and/or transition:

“It must be a *moment* of great satisfaction in your profession when the bolt is pulled, the noose tightens and you know that your murderer is done for.”

—Arnold Phillips, Max Nosseck (1902–1972)

“Some of the taverns on this road, which were particularly dirty, were plainly in a *transition* state from the camp to the house.”

—Henry David Thoreau (1817–1862)