- #1
ehrenfest
- 2,020
- 1
Homework Statement
Shouldn't there be an
[tex] \alpha_{-1}\alpha_{1} [/tex]
added to equation 12.130 on account of equation 12.129, or is that 0 for some reason?
Equation 12.130 on Zwiebach Page 225 is a mathematical formula that appears in the book "A First Course in String Theory" by Barton Zwiebach. It is used to calculate the energy of a particle in a string theory model.
The equation represents the energy of a particle in a string theory model, taking into account the string's tension, length, and mass.
The missing alpha in the equation represents a parameter that is used to describe the strength of the string coupling. Its absence indicates that the equation is only applicable in the weak coupling regime.
No, the equation is specific to the model being discussed in "A First Course in String Theory" and may not be applicable to other string theory models. It is important to use the correct equations for the specific model being studied.
No, there are many other equations used in string theory to describe different aspects of the theory, such as the behavior of strings in different dimensions and the interaction between strings. Equation 12.130 is just one of many equations used in string theory.