Lesson 8.1 - Introduction to Classical Non-Relativistic Strings | String Theory

Lesson 8: Classical, Non-Relativistic Strings In this lecture, we begin our study of classical, non-relativistic strings, laying the groundwork for understanding relativistic quantum strings in String Theory. Topics Covered: Introduction to extra dimensions & compactification in String Theory Equations of transverse oscillations of a stretched string Boundary & initial conditions (Dirichlet vs. Neumann)Solving the wave equation and analyzing oscillation frequencies Constructing the non-relativistic string Lagrangian & Action Deriving equations of motion via the Principle of Least Action String momentum conservation & introduction to D-branes Key Parameters: String tension: $T_0$Mass density: $\mu_0$Wave speed: $v_0 = \sqrt{T_0 / \mu_0}$