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Equation 133 · Part 1 · The Entry a Relabeling Cannot Write

Symbol Delta_rm frame

Δframe≡0\Delta_{\rm frame} \equiv 0
Δframe\Delta_{\rm frame}

What this part means

Deltara_rm frame is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

Deltara_rm frame is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

…the identical construction I. I. Rabi used to analyze spin behavior in a gyrating magnetic field in 1937 [ 14 ] . Two checks confirm the recovery is exact rather than incidental: at ωr\omega_r = 0 , the non-rotating case, Δframe\Delta_{\rm frame} ≡\equiv 0 and HcH_c = HfH_f , the already-verified baseline; at ωr\omega_r = ω0\omega_0 , exact corotation, HcH_c = 0 and the spin’s energy in this frame vanishes identically, which is the ordinary resonance condition, not a puzzle, because Δframe\Delta_{\rm frame} =…

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