jbergman's latest activity

Note that the conclusion of ##x^+## at ##t_1## follows because at ##t_2##, the apparatus registers ##x^+##. This is the intuitive...

I once quoted from “Quantum Philosophy” by Roland Omnès parts of the replies to such objections:

I mean at ##t_1##, we have only measured the z-spin, so I would consider the x spin not known. But if we choose the projectors I...

Yeah. What really bothers me is in the second framework where we say that the particle has spin ##x+## with 100% probability. If we had...

Roland Omnes, another founder of CH, takes an alternative approach. He would say this unease of yours is because neither framework makes...

You want additional rules for selecting frameworks? Like one might want additional rules for selecting the initial state in MWI? Or if...

Suppose you have a 2 step Stern Gerlach where you measure spin in the z-direction and then in the the x-direction. I can have two...

I would look at Folland's book or Talagrand's "What is a quantum field theory".

Not sure why you bring GR into this and not sure why you bring photons into this. The measured frequency of waves depend on relative...

A bit of a misnomer to measure position at one point. Detectors measure a position interval therefore they don't collapse the state to a...

Just to be clear the Cauchy Stress tensor is actually a ##(1,1)## tensor so ## T: V\times V^* \to \mathbb R##. So no isomorphism is...

Homogeneity of space means invariance under purely spatial translations. Thus if you have two events whose coordinates are ##x_a##...

I want to elaborate on my previous post. Imagine the game is changed. You have three doors, one, with a car behind it. Now you can...

It's really simple. Would you rather get to pick 2 doors or 1. By switching you are essentially getting to look behind the two doors you...

see https://arxiv.org/abs/2607.24825 for details