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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?
Dec
12
comment The meaning of Superposition
So, I've always found people explain superposition in a really mysterious way that I don't like. Look at it this way: you have the wavefunction Ψ that describes your system. It's just an ordinary function (well, not exactly, but go with me here). All that a superposition means is that you can represent this function as a linear sum of other functions! Boom, that's it. You could also represent it as a Taylor series, or a derivative of some other function, or the result of some computer program, or whatever. It's just that this method of representing it is called a "superposition".
Dec
5
awarded  Nice Question
Nov
25
comment What would Negative Energy act like?
Casimir effect?
Nov
23
comment What sort of “mass” is explained by the Higgs mechanism?
Actually, I'm not sure about my answer anymore. Some other posts around here have me wondering if the Higgs field interacts in other ways...
Nov
23
comment Is charge transfer from A to B positive or negative?
My question is isomorphic to the situation whereby a positron moving backward in time is equivalent to an electron moving in forward in time. One could say charge is moving through time, but without the specific type of charge and direction of time, such a statement is ambiguous.
Nov
23
comment Is charge transfer from A to B positive or negative?
I mean, the example is already known to me. I know how that process works. My question is on the terminology of the very specific phrase "charge transfer".
Nov
23
asked Is charge transfer from A to B positive or negative?
Nov
19
comment Can an elementary particle be reduced to its properties?
I've always wondered if there was a more abstract way to categorize particles/fields simply as a list of properties, transformation rules of those properties with time, and interaction rules with other particles/fields. I feel like it would simplify or at least consolidate things for me.
Nov
16
comment Is there any physical simulator precise to atomic levels and quantum effects?
Certainly! LAMMPS is what I use. It's optimized for large systems like supercomputers. But NAMD and Gromacs are also very popular.
Nov
16
answered Is there any physical simulator precise to atomic levels and quantum effects?
Nov
13
accepted Dimensionality of Hilbert space