If the probability for a state α prepared initially to be in a state β at a later time is given by:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]S_{\beta \alpha} S_{\beta \alpha}^* [/tex]

and for a state β prepared intitially to become a state α is: [itex]S_{ \alpha \beta} S_{ \alpha \beta}^* [/itex]

then in order for the two to be equal (by time-reversal symmetry), then doesn't S have to be Hermitian?

[tex]S_{ \alpha \beta}=S_{\beta \alpha}^*[/tex]

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# Does time reversal symmetry imply hermicity of s-matrix?

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