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SigmaAlpha
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11
Symmetry transformations on a quantum system; Definitions
Sep 30, 2017
10
Gauge theory and eliminating unphysical degrees of freedom
Sep 13, 2017
6
Why does the neutron have spin 1/2 and not 3/2?
Mar 1, 2018
5
Expansion coefficients of an arbitrary state in the Hilbert space of one-particle states
Sep 29, 2017
4
Implications of Poincare symmetry: spin and mass
Oct 26, 2017
3
Pure Lorentz boost; transpose $\neq$ inverse?
Jul 28, 2017
3
Four vector potential and discrete parity transformations
Oct 22, 2017
2
Let $\hat{O}$ be an operator, what is 1/$\hat{O}$?
Sep 8, 2017
2
The Lorentz group in three dimensions; Parity operator?
Sep 28, 2017
1
Significance of the order of derivatives in an action
Oct 17, 2017