Worked Problems in Physics

Nielsen and Chuang Exercise 2.30

Posted in Nielsen/Chuang by rpmuller on March 5, 2010

Exercise 2.30 Show that ${A\otimes B}$ is Hermitian if ${A,B}$ are Hermitian.

$\displaystyle (A\otimes B)^\dagger = (A^\dagger\otimes B^\dagger) = A\otimes B.$

Thus ${A\otimes B}$ is Hermitian.