Solution
= Solution
Take $\boxed{c=1}$. Indeed the <conjugate transpose> is
$$
(AB+BA)^\dagger=BA+AB=AB+BA,
$$
so the <anticommutator> is a <Hermitian matrix>. The original PDF, p. 6, supplies the factor $BA$ that is corrupted in the local OCR.
= Solution
Take $\boxed{c=1}$. Indeed the <conjugate transpose> is
$$
(AB+BA)^\dagger=BA+AB=AB+BA,
$$
so the <anticommutator> is a <Hermitian matrix>. The original PDF, p. 6, supplies the factor $BA$ that is corrupted in the local OCR.