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Superstring amplitudes in the operator formalism



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Recording Details

Speaker(s): 
Rodolfo Russo
Scientific Areas: 
Quantum Fields and Strings
Collection/Series: 
Superstring Perturbation Theory
PIRSA Number: 
15040174

Abstract

The operator formalism provides a constructive approach to superstring amplitudes that has two main virtues: it makes it possible to study explicitly all the degeneration limits and it is flexible enough to work in different setups. I will illustrate these two features in a concrete example: the twisted open string partition function at two loops, which describes the interactions between three D-branes in type II theories.