Skip to main content
12 events
when toggle format what by license comment
May 12, 2017 at 4:15 history edited loltospoon CC BY-SA 3.0
added 32 characters in body
May 12, 2017 at 4:11 answer added Samapan Bhadury timeline score: 0
May 12, 2017 at 4:10 answer added user12029 timeline score: 2
May 12, 2017 at 2:41 history edited Qmechanic
edited tags
May 12, 2017 at 2:40 comment added loltospoon @knzhou updated the question to add the context. Is this method even valid?
May 12, 2017 at 2:39 history edited loltospoon CC BY-SA 3.0
added 1010 characters in body
May 12, 2017 at 2:25 comment added knzhou @loltospoon More generally, the first equation you have says that an integral is equal to zero (for $i \neq j$), while the second says that the same integral plus an arbitrary weighting factor $V(x)$ is also zero; that can't always hold.
May 12, 2017 at 2:23 comment added NickD It depends on V, but in general, the answer is no.
May 12, 2017 at 2:21 comment added loltospoon @knzhou ok well in that case, the end result is still somewhat what I was thinking - you get $0$ when $i\neq j$.
May 12, 2017 at 2:20 history edited loltospoon CC BY-SA 3.0
added 117 characters in body
May 12, 2017 at 2:20 comment added knzhou No, this isn't true. As the simplest possible example, if $V(x)$ is a constant $V_0$, then $\langle \psi_i | V | \psi_j \rangle = V_0 \delta_{ij}$ instead.
May 12, 2017 at 2:16 history asked loltospoon CC BY-SA 3.0