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Oct
15
answered Mathematically challenging areas in Quantum information theory and quantum cryptography
Oct
11
revised Dimensional reduction and Schwarzschild solution
edited body
Oct
11
answered Dimensional reduction and Schwarzschild solution
Oct
4
comment How to construct the charge conjugation matrix for any given dimension?
I can show you how to construct in this particular case, but can you please check your calculations because in your expressions $(\Gamma^1)^2=(\Gamma^2)^2=1$ while $(\Gamma^3)^2=(\Gamma^4)^2=-1$, i.e., you are working in a signature $(1, 1, -1, -1)$. Is this really the case you need.
Oct
4
revised Clarification on “central charge equals number of degrees of freedom”
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Oct
3
answered Clarification on “central charge equals number of degrees of freedom”
Oct
3
answered Quantization of arbitrary electromagnetic field
Oct
2
revised Macroscopic laws which haven't been derived from microscopic laws
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Oct
2
answered How to construct the charge conjugation matrix for any given dimension?
Oct
2
answered Macroscopic laws which haven't been derived from microscopic laws
Sep
30
awarded  Electorate
Sep
23
comment Killing vectors for SO(3) (rotational) symmetry
cont. For the computation of the Killing vectors according to the given Wikipedia page, one needs in advance to construct the invariant metric. Furthermore, given the invariant metric, the Killing vector components satisfy differential equations which are harder to solve than the algebraic equations in the method described in the answer.
Sep
23
comment Killing vectors for SO(3) (rotational) symmetry
@ramanujan_dirac: Actually, for the construction described above, one does not need to know any property of the Maurer-Cartan form except its evaluation by the insertion of the Euler parameter formula of $g$ into its definition. This form has many interseting properties and applications, please see for further reading Shlomo Sternberg lectures: math.harvard.edu/~shlomo/docs/lie_algebras.pdf.
Sep
23
answered Killing vectors for SO(3) (rotational) symmetry
Sep
22
answered simple explanation of chiral anomaly?
Sep
21
revised What are the solution spaces of Nonlinear Schrödinger equations?
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Sep
21
revised What are the solution spaces of Nonlinear Schrödinger equations?
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Sep
21
revised What are the solution spaces of Nonlinear Schrödinger equations?
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Sep
21
answered What are the solution spaces of Nonlinear Schrödinger equations?
Sep
21
revised A good example of a nonlinear symplectomorphism?
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