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seen Nov 19 at 21:48

Nov
3
comment Can one do the maths of physics without using $\sqrt{-1}$?
Dear Qmechanic, isn't is also frown upon to copy-paste identical comments? ;-) However I admit, that my answers were too similar. So I tried to follow your suggestion (iii) and personalized my answers to address the specific question in a better way. However I still believe the quote from Dirac is very relevant and important, so I will refer to it in every answer.
Nov
3
comment Why are Only Real Things Measurable?
Dear Qmechanic, isn't is also frown upon to copy-paste identical comments? ;-) However I admit, that my answers were too similar. So I tried to follow your suggestion (iii) and personalized my answers to address the specific question in a better way. However I still believe the quote from Dirac is very relevant and important, so I will refer to it in every answer.
Nov
3
comment QM without complex numbers
Dear Qmechanic, isn't is also frown upon to copy-paste identical comments? ;-) However I admit, that my answers were too similar. So I tried to follow your suggestion (iii) and personalized my answers to address the specific question in a better way. However I still believe the quote from Dirac is very relevant and important, so I will refer to it in every answer.
Nov
3
revised About the complex nature of the wave function?
deleted 42 characters in body
Nov
3
revised Why are Only Real Things Measurable?
deleted 117 characters in body
Nov
3
revised Can one do the maths of physics without using $\sqrt{-1}$?
added 125 characters in body
Nov
2
answered Can one do the maths of physics without using $\sqrt{-1}$?
Nov
2
answered Why are Only Real Things Measurable?
Nov
2
answered About the complex nature of the wave function?
Nov
2
answered QM without complex numbers
Nov
1
asked Quantum version of the Galton Board
Oct
15
awarded  Popular Question
Sep
18
accepted Why are the classical electron radius, the Bohr radius and the Compton wavelength of an electron related to each other?
Sep
16
awarded  Necromancer
Aug
19
asked Why are the classical electron radius, the Bohr radius and the Compton wavelength of an electron related to each other?
Jul
6
accepted How realistic is the game “A slower speed of light”?
Jun
27
comment How can “quantum particles have positive masses, even though the classical waves travel at the speed of light”?
When you are saying gluon have a classical wave, do you mean gluons can be described by a classical wave equation?
Jun
26
asked How can “quantum particles have positive masses, even though the classical waves travel at the speed of light”?
Jun
26
accepted Can one define an acceleration operator in quantum mechanics?
Jun
4
comment Can one define an acceleration operator in quantum mechanics?
Isn't $\dfrac{i}{\hbar}[\hat U, \frac{\hat P}{m}] = \frac{U (\vec x)}{m} \nabla - \frac{\nabla U(\vec x)}{m}$ ?