adiabatic invariant


Also found in: Wikipedia.

adiabatic invariant

[¦ad·ē·ə¦bad·ik in′ver·ē·ənt]
(physics)
A physical quantity which may be quantized and which, to a certain degree of approximation, remains unchanged under the slow variation of any parameter.
References in periodicals archive ?
The projection of the neutron magnetic moment on the magnetic field direction is an adiabatic invariant.
The basic adiabaticity requirement is that the rate of a change of the field direction, has to be smaller compared to the Larmor frequency [omega] = [mu]B/h ([mu] is the magnetic moment of the neutron) then the projection of the spin on the field direction is approximately conserved; the projection of the neutron spin on the field direction is an adiabatic invariant.
The code will be made faster by using the adiabatic invariants for charged particle tracking in the electromagnetic field, which will markedly improve the uncertainties of our method.

Full browser ?