Astrophysics Lectures - 13. Physics of D-branes, Part I

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D-branes massless vector fields U(1) gauge theory Dirichlet condition Neumann condition Dp-brane

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MIT 8.821 String Theory and Holographic Duality, Fall 2014 View the complete course: http://ocw.mit.edu/8-821F14 Instructor: Hong Liu In this lecture, Prof. Liu introduces D-branes and finds spectrum (excitations) of open strings on D-branes. Among the excitations are massless vector fields whose low energy effective actions are given by a U(1) gauge theory. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu