Angular momentum of elliptically polarised cnoidal waves and breathers in a nonlinear gyrotropic medium with frequency dispersionстатья
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Аннотация:We have analysed expressions for the spin part of the
density vector of the angular momentum (moment of momentum) of
elliptically polarised cnoidal waves and breathers propagating in an
isotropic gyrotropic medium with second order frequency dispersion
and spatial cubic nonlinearity dispersion. We have found that,
due to nonlinear gyration, the density of the angular momentum
depends on time and propagation coordinates.