transition moment

transition moment

[tran′zish·ən ‚mō·mənt]
(quantum mechanics)
Any type of multipole moment which determines radiative transitions between states; it consists of an integral of the product of the conjugate of the final state wave function, a multipole moment operator, and the initial state wave function.
References in periodicals archive ?
In most cases, the initial encounter between political and public service actors to negotiate the PSB at the political transition moment will be inadequate for the purposes of taking stock and recalibrating the bargain.
In the broader sense, a robot's acquisition of situational awareness also marks the transition moment for the industry, when robotics steps beyond being a sustaining technology and enters the realm of disruptive technologies, with the promise and uncertainty that such an advance implies.
Later, in an address Ahmed praised the military role saying they saved the country from an anarchic situation on January 11 saying "the strong and neutral role of army saved the country from an anarchic situation during a transition moment on January 11".
March is a bittersweet month--in like a lion, out like a lamb, a transition moment that offers hints of spring but still piles on inclement, mid-winter weather.
This statement gives evidence that the real transition moment has already come.
The transition moment from the safety of her mother's poverty to the danger of her wedded wealth is of "cool" light and is interestingly marked by the contrast of her black and white furs and the colour of the skies.
The reason we are incorporating pointe shoes is because they were introduced for ballerinas as a transition moment between being aerial and landing on the stage.
Therefore, the absorption intensity depends on the angle between the transition moment and the electric vector of the radiation.
A measure of the average transition moment orientation on the surface, which is required for monolayer coverage determination, was derived from the polarization anisotropy of the surface spectra.
Each IR-active vibrational mode gives a peak in the IR absorption spectrum and possesses a transition moment that has a specific direction with respect to the molecular geometry.
Bradley (7, 8) gave detailed infrared assignments and some transition moment angles of PPV converted from dialkyl sulfonium precursor.
1] is associated with the stretching of the carbonyl group and has a transition moment angle [Alpha] equal to 90 [degrees] (18).