We know from a past note that the Nambu-Goto action can be written as,
\
Where I've used slightly different notation than in the past in order to align with Polchinski, and so it should be restated $...

As has been discussed, the Nambu-Goto action can be interpreted as providing the area of the worldsheet mapped by the string in spacetime. For what it is, I think this action is quite nice. There is a lot...

In the last entry we explored the relativistic string and arrived at the Nambu-Goto action,
\
\
Equations of motion
We can obtain the EoM by setting the variation of the action equal to 0. So, ...

Regular readers of this blog will know that I love my integrals. For those that share the same enjoyment, I recommend this channel that often covers integrals from the MIT integration bee. For example, see...

In the opening pages of volume one of Polchinski's "String Theory", we are immediately introduced to an expression for the action of a relativistic point particle.

In the last entry, we looked into a study of the nonrelativistic string and derived the appropriate equation of motion. In the process, a number of comments were directed toward the reader to pay closed att...

For pedagogical purposes, I think prefacing an engagement with Polchinski's "String Theory" with a short study of nonrelativistic strings is reasonable. Although the first pages of the book immediately engage...

As a first entry it is worth mentioning that the following notes, which I will upload to this blog over time, are the product of my studies in string theory.

Seeing how I wrote a new post yesterday in the area of tensor analysis, I was reminded of the beautiful result below. It likely would have made it onto this blog at some point, so I thought I would quickly ...

The metric tensor is ubiquitous when arriving at a certain level in one's physics career. When it comes to cyndrilical coordinates, there is a useful way to remember its deeper meaning through a rather simp...

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