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Physics
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lucenalex
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Just another curious person wanting to understand the secrets of nature.

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7
How can we determine the energy scale of a physics theory?
May 7, 2023
4
Why is important for the energy density to be positive definite in field theories?
Jun 5, 2019
4
Is there a difference between topological defects and topological soliton?
Aug 25, 2019
3
What's the origin of the vortex's ansatz $\phi\big(\vec{x}\big)=f\big(r\big)e^{-in\theta}$?
May 11, 2019
3
$\partial^{\nu} \partial_{\nu}$ vs. $\partial_{\nu} \partial^{\nu}$
May 15, 2019
2
Does it make sense to speak in a total derivative of a functional? Part I
Apr 21, 2019
2
Does it make sense to speak in a total derivative of a functional? Part II
Apr 22, 2019
2
Does it make sense to speak in a total derivative of a functional? Part III
Apr 23, 2019
1
Why the zero-order term in a variational transformation of coordinates should be identically the same as the old coordinates?
Apr 28, 2019
1
How is possible to see that Maxwell's field have $U\left(1\right)$ symmetry?
May 13, 2019