I asked this question a few months ago-
I was looking for a particular proof and explicitly mentioned it, but still it was moderator hammered even though the comments state that the questions being linked are different.
None of the answers are doing justice to my query, and that is because they aren't supposed to. They were answered keeping in mind the original question which may seem related in terms of looking for a proof, however, they are widely different as they look for proofs in different domains of physics, namely classical mechanics and quantum mechanics
Please reopen the question and if not possible please state a proper justification for closing it as the closing notes are not helpful.
As S.V. pointed out in the comments, my question is not a duplicate because of the following-
I am specifically asking for a quantum mechanics based proof and claiming it exists on the basis of a reputed source.
The other question is asking for the possibility of there being proofs based on Maxwell's theory.
One of the other questions had no accepted answers which in any case weren't appropriate for my question.
Note: In case anyone's wondering why I am asking this after such a long time, it's because I was inactive for a while and just started using SE again recently.