exchange integral

exchange integral

[iks′chānj ′in·tə·grəl]
(quantum mechanics)
Integral over the coordinates of two identical particles which can be thought of as the interaction between a given state and a second state in which the coordinates of the particles are exchanged.
References in periodicals archive ?
The asymptotic behavior at the Bethe Ridge was used to simplify the calculation and to provide values for the exchange integral.