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visits member for 4 years, 3 months
seen Mar 3 at 22:18

Mar
6
awarded  Notable Question
Jan
5
asked Is it accurate to say “a wavefunction is a function of particle positions or momenta”?
Jan
5
comment Non-separable solution for the Schrödinger equation
But does this cover all cases of non-separable solutions? Or are there solutions that cannot be represented as a linear combination of simple separable solutions?
Jan
2
comment What's wrong with the square root version of the Klein-Gordon equation?
And the most "perfect" version is just QFT which doesn't even really have a Schrodinger equation, right?
Jan
2
comment What's wrong with the square root version of the Klein-Gordon equation?
So essentially, this whole derivation involving squaring is just a heuristic to come up with an equation that is then checked with experiment to see how well it matches up? Is that why the Dirac equation is an "alternative" relativistic form of the Schrodinger equation?
Jan
2
comment What's wrong with the square root version of the Klein-Gordon equation?
Very helpful answer. Your last example -- would that imply that the series expansion (in matrix representation) of the time evolution operator U = exp(-iHt/ћ) is nonlocal as well, if H involves the gradient?
Jan
2
comment What's wrong with the square root version of the Klein-Gordon equation?
As you pointed out, since squaring two sides of an equation is not an equivalence operation, in what sense then is it valid to do that with the above?
Jan
2
revised What's wrong with the square root version of the Klein-Gordon equation?
added 26 characters in body
Jan
2
asked What's wrong with the square root version of the Klein-Gordon equation?
Dec
30
asked Finding a basis for minimal representation of a wavefunction (extracting symmetries)
Dec
24
comment Graphene and Klein bottle?
As someone who has taken both quantum mechanics and quantum field theory, I recognize some of these words...
Dec
16
comment How did the operators come about?
Whoops, fixed. I think...
Dec
16
revised How did the operators come about?
deleted 19 characters in body
Dec
16
asked How did the operators come about?
Dec
16
accepted Pauli exclusion principle for the protons in water
Dec
16
asked Pauli exclusion principle for the protons in water
Dec
15
comment Experimentally, what categorizes a measurement as corresponding to a certain observable?
@or1426 Huh. Now that's interesting. I wouldn't have thought you could do that.
Dec
15
comment Experimentally, what categorizes a measurement as corresponding to a certain observable?
@or1426 I'm not quite sure if you understand what I'm asking, but I think ACuriousMind does. Sure, the labels aren't important, but there is a correspondence that is. For instance, if I perform a bunch of measurements, and I give you the results, would you be able to tell me which Hermitian operator that list of numbers corresponds to?
Dec
15
revised Experimentally, what categorizes a measurement as corresponding to a certain observable?
added 6 characters in body
Dec
15
asked Experimentally, what categorizes a measurement as corresponding to a certain observable?