Dear everyone,(adsbygoogle = window.adsbygoogle || []).push({});

I have a simple question about the helicity of photon. The helicity operator is defined as

[tex]\hat{\mathbf{S}} \hat{\mathbf{p}}/|\mathbf{p}|[/tex]. How to show the photon has +1/-1 helicity eigenvalue from this definition?

Thank you ~~

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# A question about photon helicity

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