overlap integral

overlap integral

[′ō·vər‚lap ′int·ə·grəl]
(quantum mechanics)
The integral over space of the product of the wave function of a particle and the complex conjugate of the wave function of another particle.
References in periodicals archive ?
When the output waveguide is of single-mode, the spectral response for a certain output channel can be approximated with the following overlap integral,
where c is the velocity of the light in vacuum, and [PHI] is the phase response determined by the overlap integral [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII].