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I'm a bit confused about the eigenvalues of the second quantized fermionic field operators [itex] \psi(x)_a[/itex]. Since these operators satisfy the condition [itex] \{\psi(x)_a, \psi(y)_b\} = 0 [/itex] the eigenvalues should also anti-commute? Does this mean that the eigenvalues of [itex] \psi(x)_a[/itex] are Grassmann-numbers?

Thanks for your help

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# I Eigenvalues of Fermionic field operator

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