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Larmor frequency

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Larmor frequency
Etymology: Joseph Larmor, Irish physicist, 1857-1942
the frequency of the precession of a charged particle when its motion comes under the influence of an applied magnetic field and a central force.


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Physical nature of sodium-23 with spin = 3/2 is suitable to have a nonvanishing magnetic moment and Larmor frequency = 11.
The signature of a finite EDM is a change of the neutron Larmor frequency synchronous with the rever sal of the relative orientations of the magnetic and electric fields.
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.
 
 
 
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