1. Let |+) and |-) be an orthonormal basis in a two-state system. A new set of kets 01) and 2) are defined as 1 √2 1 (02
Posted: Thu Jul 07, 2022 12:04 pm
1. Let |+) and |-) be an orthonormal basis in a two-state system. A new set of kets 01) and 2) are defined as 1 √2 1 (02) √2 (a) Show that 01) and 2) is an orthonormal set. (b) Express +) and |-) in terms of 01) and 2). |01) = = (+)-e¹|-)) (e-i|+) + |-)) (c) Let the operator A be defined as A = |+)(-+ |-)(+]. Is A hermitian? What is the matrix representation of A in the basis {+), |-)}? (d) Express A in terms of the bras and kets of o;. Find the matrix representation of A in the new basis {0₁), 2)}. (e) For which value of 0 is the matrix representation of A diagonal?