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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeJan 9th 2013
   • (edited Jan 9th 2013)
   • PermaLink
   Author: Urs
   Format: MarkdownItexI created a new entry _[[scalar field]]_ on the notion of [[physical field]] with a brief bit of text. I removed the redirect of that to _[[ground ring]]_. It seems to me one says maybe "field of scalars" for "ground ring", but not "scalar field". (Wikipedia agrees with me, for what it's worth.) But I left disambiguations, so no harm is done either way.

   I created a new entry scalar field on the notion of physical field with a brief bit of text.

   I removed the redirect of that to ground ring. It seems to me one says maybe “field of scalars” for “ground ring”, but not “scalar field”. (Wikipedia agrees with me, for what it’s worth.) But I left disambiguations, so no harm is done either way.

2. • CommentRowNumber2.
   • CommentAuthorTobyBartels
   • CommentTimeJan 9th 2013
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexI seem to have written ‘scalar field’ there, but I agree that this is wrong. I don\'t think that any redirect is necessary, although I managed to get the first paragraph of [[scalar field]] to link to [[field of scalars]].

   I seem to have written ‘scalar field’ there, but I agree that this is wrong. I don't think that any redirect is necessary, although I managed to get the first paragraph of scalar field to link to field of scalars.

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeJul 22nd 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have started adding some genuine content to _[[scalar field theory]]_. Didn't get far, though, because I ended up collecting references in various related entries, such as _[[free field]]_, _[[wave equation]]_, _[[Green's function]]_, _[[Peierls bracket]]_. Nothing yet to look at. This is just to let you know in case you are watching the logs and are wondering.

   I have started adding some genuine content to scalar field theory. Didn’t get far, though, because I ended up collecting references in various related entries, such as free field, wave equation, Green’s function, Peierls bracket.

   Nothing yet to look at. This is just to let you know in case you are watching the logs and are wondering.

4. • CommentRowNumber4.
   • CommentAuthorzskoda
   • CommentTimeJul 27th 2017
   • PermaLink
   Author: zskoda
   Format: MarkdownItexLink [[scalar field theory]] does not seem to exist.

   Link scalar field theory does not seem to exist.

5. • CommentRowNumber5.
   • CommentAuthorUrs
   • CommentTimeJul 27th 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexThanks for the alert. I thought I had implemented the redirect. Done now.

   Thanks for the alert. I thought I had implemented the redirect. Done now.

6. • CommentRowNumber6.
   • CommentAuthorUrs
   • CommentTimeSep 5th 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have spelled out at _[[scalar field]]_ a detailed derivation, in the case of the free scalar field on Minkowski spacetime, of the Poisson bracket kernel $$ \{\phi(x), \phi(y)\} = CausalPropagator(x,y) \,. $$ (I am lacking some prefactors by powers of $2\pi$ towards the end, will fix this later.)

   I have spelled out at scalar field a detailed derivation, in the case of the free scalar field on Minkowski spacetime, of the Poisson bracket kernel

   $$\{\phi(x), \phi(y)\} = CausalPropagator(x,y) \,.$$

   (I am lacking some prefactors by powers of $2\pi$ towards the end, will fix this later.)