Recent content by bhobba

  1. bhobba

    Physics/math: how much knowledge does a high school teacher need?

    Well, in the hyperreals, it is not true. The correct answer is that it's true for real numbers, but for some extensions of the real numbers you may learn about later, it is not true. However, for now, we are not dealing with those extensions. It's like 1+2+3+4........ = -1/12 is true if we...
  2. bhobba

    Quantum Why so expensive? "Fields and Their Quanta"

    It's a niche academic book published and sold in limited quantities. I have a number of books like that, including Art's book. They are all pricey. Should you buy it?. Only you can answer that. I base my decision on my interest in the material. I was interested, so I got it for a rather...
  3. bhobba

    New Member Here!

    Shucks. I am a lowly math graduate. Thanks Bill
  4. bhobba

    Undergrad Photons and free quantum particles

    I am unsure of your exact question. Can you elaborate? Thanks Bill
  5. bhobba

    New Member Here!

    Yes, the foundations. Start with: After that, to better understand QM, although it's a bit pricey, it introduces the correct theory that ordinary QM is an approximation to called Quantum Field Theory (QFT): https://www.amazon.com.au/Fields-Their-Quanta-Quantum-Foundations-ebook/dp/B0DLNLLG7Y...
  6. bhobba

    New Member Here!

    You've come to the right place. Although I am active on a number of subforums, I tend to concentrate on Quantum Mechanics, especially its foundations. So fire away with your questions. Thanks Bill
  7. bhobba

    A question about quantum entanglement

    Sorry, Peter, badly worded. I meant a concern as an actual physical process FTL. Thanks Bill
  8. bhobba

    A question about quantum entanglement

    Using such a method would violate the constant light speed in SR. Eddington showed the natural method of syncronysation, slow clock transport is equivilant to light signal syncronysation. https://www.mathpages.com/home/kmath769/kmath769.htm I agree it is a bit of a tricky issue in relativity...
  9. bhobba

    A question about quantum entanglement

    Information that would allow clock synchronisation. Thanks Bill
  10. bhobba

    A question about quantum entanglement

    The only out, if an out it is, is that it is just a computational device. It still is non-local, but of no concern. For quantum fields, that is a difficult position to take (but likely still possible) if the 'disturbances' are real. Since the classical limit of QFT is not ordinary QM, it is...
  11. bhobba

    Programs Help deciding between an applied math and physics bachelors

    Can you please say where you live? If in the US, I would suggest applied math, then a graduate degree in mathematical physics, e.g.: https://math.indiana.edu/graduate/mathematics-physics-phd.html However, the details vary from country to country. The only country I know well is the one I...
  12. bhobba

    A question about quantum entanglement

    Regarding Feynman's view of QM, just before he died, he attended a seminar by his friend (and the guy in the office next door), Gell-Mann, on Gell-Mann's decoherent histories approach. At the end, Feynman stood up, and everyone thought they were going to witness a ding-dong between the two...
  13. bhobba

    Undergrad How can light be a wave and particle at the same time?

    Because it's neither. It's a disturbance in a quantum field that pervades all space. For the gory technical details: https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=3211&context=physics_facpub Thanks Bill
  14. bhobba

    A question about quantum entanglement

    It's a bit pricey, but the following does that and much more: https://www.amazon.com.au/Fields-Their-Quanta-Quantum-Foundations-ebook/dp/B0DLNLLG7Y Thanks Bill
  15. bhobba

    A question about quantum entanglement

    'In mathematics, you don't understand things. You just get used to them.' Which he got from his good friend John von Neumann The exact context and wording were 'Young man, in mathematics, you don’t understand things. You just get used to them.' John von Neumann, to Felix Smith In answer to...