- #1
KFC
- 488
- 4
Hi there,
I am reading an article about the evolution of states. It is said that the system is initially in state
[itex]|\Psi\rangle= a|a\rangle + b|b\rangle[/itex]
but after evolution, it becomes [itex]|\Psi'\rangle = a|a\rangle|c\rangle + b|b\rangle|d\rangle[/itex]
what is that (double ket) notation ([itex]|\rangle|\rangle[/itex]) really means?
I am reading an article about the evolution of states. It is said that the system is initially in state
[itex]|\Psi\rangle= a|a\rangle + b|b\rangle[/itex]
but after evolution, it becomes [itex]|\Psi'\rangle = a|a\rangle|c\rangle + b|b\rangle|d\rangle[/itex]
what is that (double ket) notation ([itex]|\rangle|\rangle[/itex]) really means?
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