Notes on topological string theory and 2-D quantum gravity
Notes on topological string theory and 2-D quantum gravity
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发表时间:
1990-11
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通讯作者:
R. Dijkgraaf;E. Verlinde;H. Verlinde
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作者:
R. Dijkgraaf;E. Verlinde;H. Verlinde
In these notes we give a review of topological string theory. We discuss twodimensional topological field theories, which represent its classical backgrounds. We describe their symmetries and the properties of the physical amplitudes. In the particular context of d < 1 we explain how topological string theory can be exactly solved, by deriving Schwinger-Dyson equations in the form of recursion relations between world-sheet correlation functions at different genera. ∗Based on lectures presented at the Spring School on Strings and Quantum Gravity, Trieste, April 24 – May 2, 1990 and the Cargése Workshop on Random Surfaces, Quantum Gravity and Strings, May 28 – June 1, 1990.