The discussion focuses on simplifying the expression <a|<b|a>|a> in the context of Dirac notation and tensor products. The user is trying to compute ψ*ψ, where ψ is defined as |a>|b>. There is a concern raised about the completeness and clarity of the notation used in the expression. The conversation emphasizes the importance of correctly representing tensor products in Dirac notation to avoid confusion. Clear notation is essential for accurate mathematical communication in quantum mechanics.
for d), I am a bit confused. I have two trains of thoughts here
any thoughts on which answer is correct, and why the other one is incorrect? Both seem like valid solutions to me. Or is the question ambiguous?
thanks