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.

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