推 motoman:不會 04/18 16:21
→ covari:no. 04/18 16:22
推 copyxee:From some points of view, when you measure a quantity 04/18 16:58
→ copyxee:"A" what you will get is nothing but the expectation 04/18 16:59
→ copyxee:of quantity "A", and we know that the expectation of 04/18 17:00
→ copyxee:"A" is just some linear combination of its eigenvalues 04/18 17:00
→ copyxee:so the eigenvalues of "A" are invariant under basis 04/18 17:02
→ copyxee:transformation. 04/18 17:02
推 copyxee:Sorry,I should pinpoint that expectation values of "A" 04/18 17:06
→ copyxee:are independent of representation of "A". 04/18 17:07
→ nightkid:感謝您 thank a lot! 04/18 23:22