Recent content by TheQuestionGuy14

  1. TheQuestionGuy14

    B Do quantum fluctuations actually occur in De Sitter space?

    A little while back I asked a question about quantum fluctuations, and I got some great answers. Just recently, I stumbled upon a paper by Sean Carroll, which states that there isn't quantum fluctuations after all, in a De Sitter space in a vacuum state. He used this to argue against Boltzmann...
  2. TheQuestionGuy14

    B Can a quantum particle be simulated on a classical computer?

    I'm just curious, is it possible to simulate a quantum particle (so that it is exactly like a real quantum particle) merely using a classical computer? When something is simulated on a classical computer, it's not really actually there, what you see on the screen is just pixels lighting up. The...
  3. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Thank you, I appreciate the help. Just one last question though, what exactly is a quantum fluctuation then? A quantum fluctuation is the temporary change of energy in an area of space, but the wiki says it's the creation of virtual particles that causes this energy fluctuation. What is it...
  4. TheQuestionGuy14

    B Why are Boltzmann Brains considered a problem for physics?

    When Boltzmann brains are mentioned in physics, they're often seen as a problem. An idea that is forbidden. Physicists like Sean Carroll actively tried to come up with new theories that avoid Boltzmann brains. Others like Leonard Susskind have also labled them as problems. Why is this, what's so...
  5. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Oh ok, thank you. Since virtual particles are purely mathematical, what really causes the electromagnetic force and other forces? People usually say the virtual photons are the force carriers.
  6. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Oh ok. Thanks. I read it, I understand where the myth came from, but I still don't quite understand, where virtual particles actually come from then? Real particles are still high energy parts of a field though right?
  7. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Oh right, that makes sense. But don't virtual particles fluctuate from the vacuum state? So there's more virtual particles Also, don't virtual particles affect real particles? Meaning if you had a closed system, and more and more virtual particles were appearing, the total energy of the real...
  8. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Isn't the cosmological constant interpreted to be the zero point energy of all the quantum fields? Doesn't that mean as space expands, more electric field is being created, more electromagnetic field etc. Doesn't that mean more particles? Sorry if it's a dumb question.
  9. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    Does this mean there is more particles in the universe today than there was yesterday? Or is the energy being created not related to particles?
  10. TheQuestionGuy14

    B Does a field's vacuum density violate conservation of energy?

    The vacuum density, or the zero point energy, of a field, doesn't change as space expands, it remains constant. But, aren't particles and virtual particles just fluctuations of these fields? Meaning as space expands, more and more particles are being created, violating conservation of energy?
  11. TheQuestionGuy14

    How does gravitational potential energy work?

    Sorry for all the questions, I'm just really interested. So, I know we're talking in terms of Relativity now, with the expansion of the universe and stuff, and in relativity implies there is no global conservation of energy. But, doesn't this loss of potential energy violate local conservation...
  12. TheQuestionGuy14

    How does gravitational potential energy work?

    I see, but wouldn't it reading zero mean it lost its potential energy?
  13. TheQuestionGuy14

    How does gravitational potential energy work?

    And currently, space is expanding at an accelerating rate, doesn't that mean objects within the observal universe will eventually leave it and no longer be casually connected to Earth, meaning they'd leave Earth's gravitational field? What will happen to their (teeny tiny amount of)...
  14. TheQuestionGuy14

    How does gravitational potential energy work?

    Ah, I see. So, correct me if I'm wrong, but every particle in the observable universe has always been affected by every other particles gravity. Would I be correct?
  15. TheQuestionGuy14

    How does gravitational potential energy work?

    So when the universe expanded after the big bang, did all the particles stay in every other particles gravitational field? They didn't leave the fields?
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