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In the notation adopted by Peskin and Schroeder, the single particle state is

[tex]\left|\boldsymbol{p}_1, s_1\right\rangle = \sqrt{2 E_{p}} {a_{p_1}^{s_1}}^{\dagger}\left|0\right\rangle[/tex]

How does one write down

[tex]\left\langle r|\boldsymbol{p}_1, s_1\right\rangle = \sqrt{2 E_{p}} \left\langle r|{a_{p_1}^{s_1}}^{\dagger}|0\right\rangle[/tex]

?

Thanks in advance..

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# Position space projection of the Single and two particle states of the Dirac Equation

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