Help with a string theory equation

[Akshaya dhakal]

This is related to string theory

 

[Greg Bernhardt]

What do you know about it? What have you tried? Please show an attempt.

 

[mitchell porter]

That's the equation that Michio Kaku uses to illustrate string field theory. On the right hand side, the first half is what we call a kinetic term (for motion of the string) and the second half is a potential term (for interactions of the string).

 

[Akshaya dhakal]

Thank you so much

 

[Urs Schreiber]

View attachment 229763

Specifically, this is the Lagrangian for "cubic string field theory" of open strings. For pointers and references see nLab:string field theory. For a quick exposition see in the String theory FAQ the entry What are the equations of string theory?

 

[haushofer]

What do you know about it? What have you tried? Please show an attempt.

And, most importantly: what's the question?

 

[MathematicalPhysicist]

And, most importantly: what's the question?

That's the question!

:-D