Comments for physicspages.com

This blog is for comments and reports of errors on my physicspages.com site. I will also post notifications of new articles published on the main site using this blog, so if you want  to be kept up to date, check here regularly, or else  subscribe to it for email notifications. I realize this may look like a roundabout way of organizing things, but I don’t trust WordPress with anything substantial any more.

If you’re reporting an error or want clarification of an equation in an article, PLEASE include:

  • The URL of the page – just copy this from the browser’s address bar at the top.
  • The equation number containing the error.
  • And of course, what you think is wrong with it.

Thanks, and I hope you find the new site as useful as the old one.

 

 

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Posted in Uncategorized | 47 Comments

Stress-energy tensor: 3 examples

Stress-energy tensor: 3 examples

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One-dimensional field (displacement of a string)

One-dimensional field (displacement of a string)

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Hamiltonian for complex scalar field

Hamiltonian for complex scalar field

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Canonical momenta for electromagnetic fields

Canonical momenta for electromagnetic fields

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Generators of the Lorentz group – alternative derivation of the Commutators

Generators of the Lorentz group – alternative derivation of the Commutators

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Generators of the Lorentz group – Momentum Commutators

Generators of the Lorentz group – Momentum Commutators

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Generators of the Lorentz group – Commutators

Generators of the Lorentz group – Commutators

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