MATRIX MODELS AND 2D STRING THEORY [chapter]

Emil J. Martinec
NATO Science Series II: Mathematics, Physics and Chemistry  
String theory in two-dimensional spacetime illuminates two main threads of recent development in string theory: (1) Open/closed string duality, and (2) Tachyon condensation. In two dimensions, many aspects of these phenomena can be explored in a setting where exact calculations can be performed. These lectures review the basic aspects of this system. 1 e-martinec@uchicago.edu 7 Conformally improved means that while the path integral (8) is Gaussian, so the worldsheet QFT is free, the stress
more » ... or is modified due to the coupling to intrinsic curvature.
doi:10.1007/1-4020-4531-x_11 fatcat:m7b2lqa7zbbwfhh4wzdirp7rra