quarta-feira, 10 de abril de 2019

The energy, momentum, and transve. Spinam manuscrito em Latim, Acacia. A explicação pode ser que esteja aqui.Pois é não estudei física então fico olhando as figurinhas. Explicação para algo visto no ano de 2002.





The circulation of the canonical momentum immediately yields the orbital AM density in the optical field [14,31,34,37,50,84]:L=r⇥P

 L=r⇥P




ACIMA
https://www.researchgate.net/publication/274967442_Transverse_and_longitudinal_angular_momenta_of_light



https://www.researchgate.net/figure/fig1_272522025 ABAIXO

FIG 2 - uploaded by Peter Banzer
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Instantaneous distributions of the real-valued electric field E R (r, θ, t) (15). At y/r0 ≈ 1 the electric field spins in the yz-plane. Here r0 = a/kr gives the central core spot size of the beam,...





Time-averaged energy density w ( x, y ) /w 0 as given ◦ by Eq. (20), with r 0 = a/k r and θ 0 = 15 .



(Left to right) Distributions of the the spin AM densities vector fields SE, SB and S = SE + SB on the xy-plane, calculated from Eq. (23). All plotted fields are normalized to w0/ω.

Instantaneous distributions of the real-valued electric field E R (y, z, t) as given in Eq. (28) and evaluated for ζ = π/12. In each point the electric field vector rotates clockwise.

Instantaneous distributions of the real-valued electric field E R (y, z, t) generated by φ(r, t) + φ ⊥ (r, t) with ζ = π/12.
Transverse spin of light for all wavefields
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  • Feb 2015






https://www.groundai.com/project/angular-momentum-and-quantization-of-light-in-nondispersive-media/
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