Consider a physical system whose three-dimensional state space is spanned by the orthonormal basis formed by the three kets {Je1>, le2>, Je3>}. In the basis of these three vectors, taken in this order, the Hamiltonian H^ and the two operators B^ and D^ are defined by: 7 i 1- i 20 B= bo H= hwo | -i 3 0 0 2 1+ i 6. -i D= 0. 2a 1+i 1- i 2a -3a where wo and bo are constants. Also using this ordered basis, the initial state of the system is given by: (e1|v(0) e2l (0) e3| v(0) T6(0)) = Q: After measuring H at t + 0, the operator B was measured.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Consider a physical system whose three-dimensional state
space is spanned by the orthonormal basis formed by the three
kets {Je1>, le2>, Je3>}. In the basis of these three vectors, taken
in this order, the Hamiltonian H^ and the two operators B^ and
D^ are defined by:
7
i
1- i
2a
H= hwo | -i 3 0
0 2
B= bo
-i
1+i
D=
0.
2a
1+i 1- i
6.
2a
-3a
where wo and bo are constants. Also using this ordered basis,
the initial state of the system is given by:
(e1|v(0)
e2l (0)
e3| v(0)
|(0)) =
Q: After measuring H at t + 0, the operator B was measured.
What is <B> ± AB?
Transcribed Image Text:Consider a physical system whose three-dimensional state space is spanned by the orthonormal basis formed by the three kets {Je1>, le2>, Je3>}. In the basis of these three vectors, taken in this order, the Hamiltonian H^ and the two operators B^ and D^ are defined by: 7 i 1- i 2a H= hwo | -i 3 0 0 2 B= bo -i 1+i D= 0. 2a 1+i 1- i 6. 2a -3a where wo and bo are constants. Also using this ordered basis, the initial state of the system is given by: (e1|v(0) e2l (0) e3| v(0) |(0)) = Q: After measuring H at t + 0, the operator B was measured. What is <B> ± AB?
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