1
$\begingroup$

[PS: Not a science student beyond high school]

Hi, I was reading a book on the debates surrounding interpretations of quantum mechanics (link) and it discussed how the solution to Einstein's Light-box experiment was solved by Bohr by relying on the uncertainty of measuring time in a gravitational field.

  1. What if the light-box is put in a rocketship? That way it's only an accelerated frame of reference, that way the gravitational time dilation wouldn't take place
  2. Doesn't this solution to the thought experiment indirectly assume a unified field theory?

The book says that upon Bohr's death the last thing on his blackboard was him trying to work out another solution to the light-box, which makes me wonder if he also wasn't satisfied with his solution.

EDIT: I wrote this question under the assumption that the time dilation is uniform across the length of a rocketship.

$\endgroup$
2
$\begingroup$

If we placed the thought experiment in an accelerated frame of reference we would obtain the same result. So putting the box in a rocket ship does not change Bohr’s argument. This is a consequence of the equivalence principle, which simply states that gravitational acceleration due to a massive body is indistinguishable from acceleration.

$\endgroup$
1
  • $\begingroup$ Ah, I thought the equivalence principle only applied to classical properties such as momentum etc *and that time dilation is non-uniform only in a gravitational field. I didn't realize that time dilation is not uniform even inside a rocketship. (edited my reply for clarity) $\endgroup$
    – Leafy
    Jul 18 at 12:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.