(c) Consider a vector \( |A-\lambda B\rangle \) for some scalar \( \lambda \). Find the value of \( \lambda \) in order to satisfy the Schwarz -inequality.
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Step 1: Recall the Schwarz inequality for vectors \( |A\rangle \) and \( |B\rangle \): \[ |\langle A | B \rangle|^2 \leq \langle A | A \rangle \langle B | B \rangle \] Show more…
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