- #1
ssampak
- 5
- 0
I don't have any problems dealing with mechanical calculations(I think), but yet I have some conceptual problems with mixed state(= statistical mixture?) and pure state in QM.
- pure state : |Φ> = 1/sqrt2 ( |↑> + |↓> )
- mixed state : ρ = 1/2 ( |↑><↑| + |↑><↑| )
What is the difference besides the coefficients?
And, some denote that |↑><↑| is an operator but others a state.
I am really confused. Somebody give me clarification.
- pure state : |Φ> = 1/sqrt2 ( |↑> + |↓> )
- mixed state : ρ = 1/2 ( |↑><↑| + |↑><↑| )
What is the difference besides the coefficients?
And, some denote that |↑><↑| is an operator but others a state.
I am really confused. Somebody give me clarification.