## Representation of bell state in $σ_y$ eigenstates

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How to express $$\rho = \frac{1}{2} |\Phi_+\rangle\langle\Phi_+| +\frac{1}{2} |\Psi_-\rangle\langle\Psi_-|$$ in the basis of $$\hat{\sigma_y}$$ eigenstates.

Question was closed 2021-02-18T23:10:25.920

1What have you tried? – Rammus – 2021-02-17T10:13:08.417