- #1
Gerenuk
- 1,034
- 5
How do you find the scalar product of two non-orthogonal many particle states?
For example [itex]<\leftarrow,\rightarrow|\uparrow,\downarrow>[/itex]
I wanted to express both as a 4-vector in the up/down basis, but this seems weird, since then a state [itex]|\uparrow\downarrow+\downarrow\uparrow>[/itex] is like [itex]|\uparrow\uparrow+\downarrow\downarrow>[/itex].
For example [itex]<\leftarrow,\rightarrow|\uparrow,\downarrow>[/itex]
I wanted to express both as a 4-vector in the up/down basis, but this seems weird, since then a state [itex]|\uparrow\downarrow+\downarrow\uparrow>[/itex] is like [itex]|\uparrow\uparrow+\downarrow\downarrow>[/itex].