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Archived: 07 Aug 2014, 09:26
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deant
Joined: 12 Jul 2010, 07:44 Posts: 154
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 Exercise [22.16]
I'd suggest that it's because the photon's "rotation" (or "angular momentum") isn't affected by reflection, but its direction of travel is reversed; hence the helicity is opposite after a reflection.
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13 Oct 2012, 05:54 |
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