Blitz Posted August 3, 2016 Share Posted August 3, 2016 i'll say why not, but have anything to support that. Link to comment Share on other sites More sharing options...
Strange Posted August 3, 2016 Share Posted August 3, 2016 Gravitational waves? Link to comment Share on other sites More sharing options...
ajb Posted August 3, 2016 Share Posted August 3, 2016 (edited) I am not quite sure what you are asking - but are you thinking of waves on 4-d space-time that depend on some other 'external' parameter? Much like you think of EM waves taking values at (x,y,z) but depending on t? Gravitational waves? They are not special in this sense - you write h(ct, x, y, z) and this satisfies the 3+1 d wave equation. But then so does EM radiation. Edited August 3, 2016 by ajb Link to comment Share on other sites More sharing options...
MigL Posted August 3, 2016 Share Posted August 3, 2016 Do you maybe mean polarization. Such as an EM wave being polarized in two directions perpendicular to its direction of travel, but that third polarization direction being forbidden ? Link to comment Share on other sites More sharing options...
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