pines-demon's latest activity

My issue here is the lack of a simple example, outside of quantum mechanics. Just because you can go from one picture to another it...

I only know of Wigner's version from a comment in Ohanian's Gravitation and Space-Time. It was actually my first serious book on GR...

Oh I see, I thought it was Currie-Jordan-Sudarshan's. Wigner's cites them, they write are all these no interaction theorems different?

See: https://journals.aps.org/pr/abstract/10.1103/PhysRev.182.1397 It's been on my to-do list for ages to get down to my old uni...

Is it Wigner's?

Have you read Chapters 3 and 4 of Misner, Thorne, & Wheeler? That's where I first encountered the material that's briefly summarized in...

What even is this? I agree with your statements and that Barandes has kind of let go. However I would have been less insisting with...

If you can book a visit would be great, you get to visit more stuff than just the home building.

Just to point out that in individual cases, a vector ##\left|\psi\right.\rangle## can be a simultaneous eigenstate of non-commuting...

Why are we discussing the 3D case now? Anyway, in that case the uncertainty reads $$\Delta L_x \Delta L_y \geq \frac12 |\langle...

I noticed the following question generated quite a lot of interest on the Internet. Which is larger ##e^{\pi}## or ##\pi^e##? Most (if...

What do you mean? What do you want to know? In 2D you only have one generation of rotations: ##L_z##.

Well there is another utility. Barandes says that we can use techniques of stochastic mechanics to understand quantum mechanics and...

I have been trying to narrow down what kind of nonlocality Barandes is obtaining but I have failed to grasp anything definitive (his...

I totally missed the lecture notes. Thanks!