Recent content by rasko

A friend of mine imported some foods packaged in aluminum cans (vacuum packing). The goods were delivered by a cago plane, after arrival a part of the cans were found dented. It really confused me. Could that be caused by the airplane flight?

2Tesla and Mute, thanks. I understand now. |0,0>=|A up>|A down> |0,0>=|B up>|B down> Thanks u for ur tips.

Hi, Mute. I think there should be no AA or BB pairs. Because at the same time A or B has only one state.

A molecule of hydrogen. We assume that the only possible states of its two electrons (indistinguishable) are |A\uparrow\rangle, |A\downarrow\rangle, |B\uparrow\rangle and |B\downarrow\rangle (A=1s-orbital at atom A, B=1s-orbital at atom B). Formulate the 6 basis functions using the four...

Thank you!

In Sakurai's book, page 22: |\beta><\alpha| \doteq \left( \begin{array}{ccc} <a^{(1)}|\beta><a^{(1)}|\alpha>^{*} & <a^{(1)}|\beta><a^{(2)}|\alpha>^{*} & \ldots \\ <a^{(2)}|\beta><a^{(1)}|\alpha>^{*} & <a^{(2)}|\beta><a^{(2)}|\alpha>^{*} & \ldots \\ \vdots & \vdots & \ddots \end{array} \right)...