A: Yes. The 2nd edition added many problems on density matrices, EPR paradox, and Bell’s inequalities. The 1st edition manual will not cover these.
Quantum mechanics often involves lengthy algebraic manipulations, such as solving the Schrödinger equation for various potentials or calculating Clebsch-Gordan coefficients. The manual allows students to verify their mid-step calculations to ensure they haven't made a sign error or a normalization mistake. 2. Mastery of the Dirac Notation A: Yes
It explains the "why" behind postulates and operators. A: Yes
Without the manual, a student might memorize 2iħ p . With the manual, they learn the technique to solve any [x, f(p)] commutator. A: Yes